Muna Abbass

Muna Abbass
University of Technology, Iraq · Department of Production Engineering and Metallurgy

PhD Metallurgy Eng.

About

101
Publications
51,604
Reads
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336
Citations
Citations since 2016
51 Research Items
306 Citations
20162017201820192020202120220204060
20162017201820192020202120220204060
20162017201820192020202120220204060
20162017201820192020202120220204060
Additional affiliations
October 1981 - present
University of Technology,Baghdad,Iraq
Position
  • Professor
Description
  • Professor in Metallurgy Engineering in different field , advance welding and casting, wear, corrosion and oxidation , nanotechnology, Nano coating, shape memory alloys, composites materials and advance heat treatments
January 1981 - November 2015
University of Technology, Iraq
Position
  • Professor
January 1981 - November 2015
University of Technology, Iraq
Position
  • Professor

Publications

Publications (101)
Article
Full-text available
Artificial Saliva) ‫ﺔ‬ ‫واﻟﺘﮭﻮﯾ‬ ‫ﯿﺔ‬ ‫واﻟﺤﺎﻣﻀ‬ ‫ﺮارة‬ ‫اﻟﺤ‬ ‫ودرﺟﺔ‬ ‫ﻚ‬ ‫أﻟﺨﻠﯿ‬ ‫ﺎﻣﺾ‬ ‫ﺣ‬ ‫ﻮل‬ ‫ﻣﺤﻠ‬ ‫ﻲ‬ ‫ﻓ‬ ‫ﺔ‬ ‫اﻟﻌﺎﻣﻠ‬ ‫ﺑﺎﻷﺳﻼك‬ ‫وﻣﻘﺎرﻧﺘﮭﺎ‬ ، (CH ٣ COO) ‫ﻂ‬ ‫ﻓﻘ‬ ‫ﺎﺑﻘﺔ‬ ‫اﻟﺴ‬ ‫ﺮارة‬ ‫اﻟﺤ‬ ‫ﺔ‬ ‫درﺟ‬ ‫و‬ ‫ﺔ‬ ‫اﻟﺘﮭﻮﯾ‬ ‫ﻨﻔﺲ‬ ‫وﺑ‬ ‫ﺎﻓﺎ‬ ‫وﻣﻀ‬ ‫ﻨﺎﻋﻲ‬ ‫اﻟﺼ‬ ‫ﺎب‬ ‫اﻟﻠﻌ‬ ‫ﻲ‬ ‫ﻓ‬ ‫اﻟﻤﺘﻮاﺟﺪة‬ ‫اﻷﺳﻼك‬ ‫ﺛﻢ‬ ‫ﺛﺎﻧﻲ،‬ ‫أﻛﺎل‬ ‫ﻛﺠﻮ‬ " ‫ﻚ‬ ‫أﻟﺨﻠﯿ‬ ‫ﺎﻣﺾ‬ ‫ﺣ‬ ‫ﮫ‬ ‫...
Article
Full-text available
The aim of this work is to study the possibility of joining two plates from aluminum alloys, AA2024-T3 with AA6061-T6, using friction stir welding (FSW) technique. In this study, the plates were prepared by cutting with dimensions (100 x 50 x 5) mm by CNC milling machine with cutting speed of 1200 rpm and variable feeding speed of (25, 30, 35 & 40...
Article
This research investigates the effect of tin addition on corrosion resistance and micro structure of Cu-Al-Ni shape memory alloy with addition three different percentages of Tin (0.3, 1 &3)wt% to the base alloy. These alloys were prepared by casting and pouring in the metallic mold under argon atmosphere, then the prepared ingots were homogenized a...
Conference Paper
By using magnetron sputtering deposition method Platinum (Pt.) thin films have been deposited with 17nm and 34nm thin film thickness. Power RF used for depositing 5 nm of Titanium (Ti) before depositing thin films of Pt. by DC on Ni-Cr alloy substrates. Facilities used are SEM/EDX, Ellipsometry Spectroscopy and Electrochemical potentiostat to inves...
Presentation
Full-text available
Effect of Ce addition on mechanical properties and shape memory effect of Cu-14%Al-4.5%Ni shape memory alloy
Article
Full-text available
This research studies the effect of SiC particles on the microstructure and wear behavior of AA6061-T6 aluminum alloy surface composite. Friction stir processing (FSP) was used to incorporate micro-sized SiC particles into AA6061-T6 aluminum alloy to form a particulate composite surface layer. Samples were subjected to two passes of FSP with and wi...
Article
This investigation examines the influences of the (Ce) addition on the mechanical properties and the shape memory effect (SME) of the Cu-based shape memory alloys (SMAs), in which (Ce) is added in three percentages (0.3, 1.0 and 3 wt%) to the base material (Cu-14%Al-4.5%Ni). Different tests and inspections, including X-ray diffraction, compression,...
Article
Full-text available
Abstract. In this work, synthesis and characterization of Al2O3, TiO2and Al2O3/ TiO2hyper thin films, with 25 nm and 50 nm,have been investigated by using Atomic layer deposition method (ALD) at high vacuum (0.27 Torr) onto the cobalt chromium alloy (ASTM F75) and si-wafer (100) substrates. The characterizationshave been investigated using transmis...
Article
This work aims to study the effect of Nd-YAG laser treatment on surface modification and corrosion behavior of AISI 316L stainless steel which is the most widely used as implant bio material in the artificial saliva solution at 37 ±1°C. The samples were irradiated with Nd:YAG laser with various pulse repetition rates (or frequencies) of 1,3 and 6 H...
Article
This research is devoted to study the wear behavior and mechanism of CoCrMo alloy due to the uitilization of the alloy in application mainly exposed to wear. Samples fabricated by powder metallurgy route compacted under (1000MPa) and sintered at (1200ºC) in the argon atmosphere. Wear test type pin-on-disc was performed under dry sliding condition o...
Article
Full-text available
This work aims to study the effect of the heat treatment (precipitation hardening) on microstructure and corrosion parameters of two alloys (Al-4%Cu) and (Al-4.1%Cu-0.9%Mg). They were prepared by melting and casting in a metallic mold. Hot rolling at 450C° was carried out on ingots by 50% deformation of two alloys to get sheets. Many tests were con...
Article
Full-text available
In this research the effect of Al2O3 nanoparticles on corrosion behavior of aluminum base alloy (Al-4.5 wt% Cu-1.5 wt% Mg) has been investigated. Nanocomopsites reinforced with variable contents of 1, 3 and 5 wt% of Al2O3 nanoparticles were fabricated using powder metallurgy. All samples were prepared from the base alloy powders under the best powd...
Article
In this study the friction stir lap welding was carried out by a new technique (diffusion bonding phenomenon) between (AA1100 and low carbon steel C10 sheets of 3mm and 1mm thickness respectively. These alloys have difference ranges in melting temperature and other physical properties. Different parameters were used: tool rotation speeds (630, 1250...
Presentation
Full-text available
This Presentation is given in the ICMPC 2016 at Hyderabad India 13-14 March 2016
Article
Full-text available
The present work aimed to study the laser surface treatment and modification of Al-4.0%Cu-1.0%Mg alloy matrix composite reinforced with 10%SiC particles produced by stir casting. The specimens of the base alloy and composite were irradiated with an Nd:YAG laser of 1000 mJ, 1064 nm and 3 Hz . Dry wear test using the pin-on –disc technique at differe...
Technical Report
The friction welding is a solid state welding process or the method of manufacturing for joining different types of metals, i.e., ferrous metals and nonferrous metals (dissimilar metals). Friction welding technologies convert mechanical energy into heat at the joint to be welded. Coalescence of metals takes place under compressive contact of the pa...
Article
Full-text available
Atomic Layer Deposition (ALD) method has been used to synthesis nanocoatings thin films of Alumina, Titania, and Alumina/Titania multilayer on stainless steel AISI 316L at 250 °C deposition temperatures for the medical applications. SEM and EDX have been used to characterize the morphology of the films and the element analysis of the alloys and the...
Article
Full-text available
Platinum (Pt.) thin films have been deposited by Magnetron Sputtering Deposition method with 25 nm and 50 nm thickness by used power RF for deposited 5 nm Titanium (Ti) firstly then used DC for deposited Platinum (Pt) on Ni-Cr alloy substrate. SEM/EDX and Ellipsometry Spectroscopy have been used to investigate the morphology, element analysis, nano...
Poster
Full-text available
In the present work, the dry sliding wear behavior of Al-12wt%Si matrix nanocomposites reinforced with hybrid addition of 2,4 and 6wt% (Al2O3 +TiO2) nano particles were investigated. All nanocomposites samples were fabricated by powder metallurgy by mechanical milling of the base alloy (Al-12wt%Si) powder and nanopowders of Al2O3 and TiO2, followed...
Article
This paper aims to study the effect of Ge addition in different percentages (0.3%wt ,1%wt, 3%wt) on the micro structure and mechanical properties of Cu-14wt%Al-4.5wt%Ni shape memory alloy which prepared by casting method in vacuum induction furnace. Many tests and inspections such as optical and SEM examinations , DSC Measurement ,XRD inspection ,...
Technical Report
Advance Applications of Friction Stir Welding Processes
Article
This work aims to study the effect of sintering temperatures on physical properties (density and porosity) and corrosion behavior of compact(Al-4.5%Cu-1.5%Mg) alloy in 3.5% NaCl solution at room temperature using cyclic polarization method. Powder technology was used to prepare this alloy by mechanical mixing of Al, Cu and Mg powders in a ball mill...
Article
In this study pitting corrosion is investigated in hypereutectic Al- 17wt% Si alloy bearing magnesium . Many alloys were prepared by die casting with adding different percentages of magnesium : 1 wt%, 4wt% & 9 wt% to the Al-17%Si alloy in order to study the influence of magnesium addition on the corrosion behavior and pitting properties in 3.5% NaC...
Article
This paper aims to study the effect of Thermo Mechanical treatment in different Temperatures (260 ,280& 300) on the micro structure and mechanical properties of Cu-14wt%Al-4.5wt%Ni shape memory alloy which prepared by casting method in induction furnace under Argon Atmosphere . Then thermo –mechanical treatment was preformed upon the alloy by apply...
Article
Full-text available
Abstract—This research aims to study the effect of the liquid nitriding and shot peening on the hardness, surface roughness, residual stress, microstructure and corrosion behavior of austenite stainless steel 316 L. Chemical surface heat treatment by liquid nitriding process was carried out at 500 oC for 1 h and followed by shot peening with using...
Article
The present work aims to study a dry sliding wear behavior of alloy (Al-12%Si) reinforced with 5 wt% SiC particles. Metal matrix composite samples were prepared by stir casting using vortex technique and squeeze casting under varying casting pressures from 7.5 to 53 MPa, and mold preheated at temperature (200 ºC). Pin -on-Disk wear tests were condu...
Article
Full-text available
The aim of the present work is to study a dry sliding wear behavior of (Al – 12wt % Si) alloy reinforced with 5wt% SiC particles. Metal matrix composite samples were prepared by stir casting using vortex technique and squeeze casting under varying casting pressures from 7.5 to 53MPa , and mold preheated at temperature (200 o C). Pin-on-Disk wear te...
Article
Two different alloys of aluminum AA5086-H32 and AA6061-T6 were welded by friction stir welding method using three different values of linear and rotating speed; V= 50, 75 and 90 mm/min., N= 680, 920 and 1500RPM. Tensile test was used to determine the efficiency of welded samples. The microstructure, hardness, XRD analysis and fatigue were studied f...
Article
Two different alloys of aluminum AA5086-H32 and AA6061-T6 were welded by friction stir welding method using three different values of linear and rotating speed; V= 50, 75 and 90 mm/min., N= 680, 920 and 1500RPM. Tensile test was used to determine the efficiency of welded samples. The microstructure, hardness, XRD analysis and fatigue were studied f...
Article
Full-text available
This research aims to investigate the effect of TIG spot welding parameters such as welding current , welding time and sheet thickness on the maximum shear force and spot diameter of austenitic stainless steel AISI 304L with thickness of 0.6 mm, 0.8 mm & 1.0 mm .Taguchi method with using L27 orthogonal array was applied to select the optimum weldin...
Article
This paper aims to study the effect of thermo mechanical treatment in different temperatures of (260 ,280& 300) ◦C on the microstructure and mechanical properties of Cu-14wt%Al-4.5wt%Ni shape memory alloy which prepared by casting method in induction furnace under argon atmosphere. Then thermo –mechanical treatment was performed upon the alloy by a...
Presentation
Full-text available
هدف الدراسة دراسة تأثير الكربنة الصلبة باستخدام بعض النفايات والمركبات كاوساط مكربنة او كمواد منشطة للمادة المكربنة منها: - 1-الفحم النباتي ,قشور الرز, و قشور البطيخ, اوراق الازهار,قصب السكر 2- عظام البقر , قشور البيض على الصلادة ومقاومة البلى الانزلاقي والكلال لفولاذ منخفض الكاربون اما الهدف من استخدام بعض نفايات الانتاج الحيواني والنباتي هو :- تح...
Article
Full-text available
In this work, friction stir spot welding (FSSW) was performed for dissimilar aluminum alloys (AA2024-T3 and AA5754-H114) sheets of 2 mm thick at different tool rotational speeds (800, 1000 and 1250 rpm), plunging times (30, 60 and 90 s) and tool pin profile or geometry (threaded cylindrical with flute, tapered cylindrical and straight cylindrical)....
Article
Full-text available
This paper aims to study the effect of Trillium on Thermo -Mechanical characterization by add Te with three different weight percentages (0.3%, 1%, 3%) to a Cu-14%Al-4.5%Ni Shape Memory Alloy which prepared by casting method in vacuum induction furnace. Many tests and inspections such as optical and SEM examinations , DSC Measurement ,XRD inspectio...
Conference Paper
Full-text available
In the present work, fabrication of Al-12wt%Si matrix composites reinforced with hybrid addition of 2,4 and 6wt% (Al 2 O 3 +TiO 2) Nano particles. All nanocomposites samples were fabricated by powder metallurgy by mechanical milling of the base alloy (Al-12wt%Si) powder and nanopowders of Al 2 O 3 and TiO 2 , followed by cold pressing at 100bar and...
Book
Full-text available
This book deals with synthesize high quality nanocoatings thin films of alumina, titania, and alumina/titania multilayers with 25 nm and 50 nm thickness by Atomic Layer Deposition (ALD) method on different implantable orthopedic alloys ( Co-28Cr-6Mo ASTM F75 and Stainless steel 316L), and then characterization the structure of thin films by advance...
Article
Full-text available
Friction stir spot welding (FSSW) was performed for welding of an aluminum alloy AA2024T3 sheet to commercial pure copper sheet of 2mm thick. Friction stir spot welding are carried out at different tool rotational speeds(800,1000 &1250) rpm ,plunging times (30 ,60 &90) sec and tool pin profile or geometry (Threaded cylindrical with flute, Tapered c...
Conference Paper
Full-text available
Gold thin films have been prepared and deposited by sputtering deposition system at 17 nm and 34nm thickness on Ni-Cr-Mo alloy substrate. SEM, AFM, XRD, and Spectroscopic Reflectometer were used to characterize the thin films deposited. Electrochemical corrosion tests also have been carried out by measuring open circuit potential (E o.c.p), Tafel e...
Article
Full-text available
In the present work, the dry sliding wear behavior of Al-12wt%Si matrix composites reinforced with hybrid addition of 2, 4 and 6 wt.% (Al2O3 + TiO2) nano particles were investigated. All nano composites samples were fabricated by powder metallurgy and mechanical milling of micro powders of the base alloy (Al-12wt.%Si) and nano powders of Al2O3 and...
Thesis
Full-text available
Abstract Friction Stir Spot .Welding (FSSW) is a very beneficial variant of the classic friction stir welding (FSW), which can be a replacement of single-point joining processes like resistance spot welding and fastening. FSSW is performed on dissimilar aluminum alloys AA2024-T3 and AA5754-H114 with and without pure copper of 2 mm thick sheets. FSS...
Conference Paper
Full-text available
The oxidation of Al-Li base alloy containing small amounts of rare earth (RE) oxides such as 0.2wt%Y2O3 and 0.2wt%Nd2O3 particles have been studied at temperatures: 400ºC, 500ºC and 550°C for 60hr in a dry air. Alloys used in this study were prepared by melting and casting in a permanent steel mould under controlled atmosphere. Identification of ox...
Conference Paper
Full-text available
This work aims to study the effect of shot peening on the mechanical properties of welded joints which performed by two different welding processes : Tungsten inert gas (TIG) welding and friction stir welding (FSW) processes of aluminum alloy 6061 T6. Arc welding process (TIG) was carried out on the sheet with dimensions of (100* 50* 6mm) to obtain...
Article
Full-text available
Aluminum Oxide (Al2O3) thin film on stainless steel and Si-wafer (100) substrates. For TiO2, Tetrakis (dimethylamido) titanium (TDMAT) {Ti (NMe2)4} was used. Also for Al2O3 , Trimethylaluminum (TMA) {Al (CH3)3 } was used. H2O as precursors used for two of them and at 250 °C deposition temperatures. Growth rates of thin film, thin film properties (i...
Conference Paper
Full-text available
Gold thin films have been prepared and deposited by sputtering deposition system at 17 nm and 34nm thickness on Ni-Cr-Mo alloy substrate. SEM, AFM, XRD, and Spectroscopic Reflectometer were used to characterize the thin films deposited. Electrochemical corrosion tests also have been carried out by measuring open circuit potential (E o.c.p), Tafel e...
Article
Full-text available
This paper aims to study the corrosion resistance of metal matrix composite of an aluminum alloy (Al 6061) reinforced by SiC particles with 10wt% and 20wt%. Composite materials were prepared by stir casting using vortex technique. Corrosion behavior of aluminum matrix composite in sea water (3.5% NaCl solution) was examined using potentiostatically...
Thesis
Full-text available
Abstract Friction stir welding (FSW) is a relatively modern and an environment friendly solid-situation welding process suited for welding of similar and dissimilar aluminum alloys especially the 2xxx and 7xxx series, which have many difficulties and problems in fusion welding processes. In this study friction stir welding process is performed on d...
Chapter
Full-text available
Metals are generally characterized by their lustrous, opaque appearance and, in respect of other physical properties, metals and non-metals contrast strongly. .All metals (except mercury) are solids at ambient temperatures and have relatively high melting points which vary between (-39ºC) for mercury and (3410ºC) for tungsten. Non-metals include ga...
Conference Paper
Full-text available
The aim of the present work is to investigate the fatigue behavior of friction stir welded joints for dissimilar aluminum alloys 5052-H34 and 7075-T6. Friction stir welding (FSW) has been done on 4.826mm (0.19) in thick plate by using MTS-5 axis friction stir welder. FSW were carried out under optimum welding parameters with travel speed of 187mm/m...
Article
Full-text available
Co-Cr-Mo alloy has been used for biomedical implant for a number of years. In this study, ASTM F-75 Cobalt-base substrate specimen was immersed in artificial saliva at 37 + 1 ºC to study the corrosion resistance properties. Surface of specimen before and after the immersion was analyzed by optical microscope and Scanning Electron Microscopy (SEM)....
Article
Full-text available
ABSTRUCT In this research , medium carbon steel type (AISI 1045) sheets with 8 mm thickness were welded by Gas Metal Arc Welding Process (GMAW), this study included the application of numerical analyses by using control volume method (CVM) to obtain the effect of preheating process with different temperatures (75˚C75˚C , 125˚C125˚C and 225˚C225˚C)...
Book
Full-text available
In the present work, the dry sliding wear behavior of Al-12wt%Si matrix nanocomposites reinforced with hybrid addition of 2,4 and 6wt% (Al2O3 +TiO2) nano particles were investigated. All nanocomposites samples were fabricated by powder metallurgy and mechanical milling of micro powders of the base alloy (Al-12wt%Si) and nanopowders of Al2O3 and TiO...
Article
Full-text available
The aim of present work is to study the erosion –corrosion behavior of aluminum metal composite which consists of the (Al – 12wt % Si) alloy as matrix phase and 10wt% SiC particles as reinforcing phase. Composite material was prepared by stir casting using vortex technique. A general corrosion and erosion-corrosion for the base alloy and the prepar...
Article
Full-text available
In the present work, the dry sliding wear behavior of Al-12wt%Si matrix nanocomposites reinforced with single addition of 4wt.% Al 2 O 3 or 4wt.%TiO 2 nanoparticles, and with hybrid addition of 4wt% (Al 2 O 3 +TiO 2) nano particles is investigated. All nanocomposites samples were fabricated by powder technology by mechanical milling of the base all...
Technical Report
Studying Wear Behavior of Composites Aluminum – Copper Coated Glass Abstract The research is aimed to prepare an aluminum matrix reinforced with window glass particles with weight percentages of (1%,2%,3%,5% and 7%) ,with particle sizes varies from 75-150μm. Composite materials are prepared by using mechanical stir- casting method. The formation...
Research
The aim of the present work is to investigate the fatigue behavior of friction stir welded joints for dissimilar aluminum alloys 5052-H34 and 7075-T6. Friction stir welding (FSW) has been done on 4.826mm (0.19) in thick plate by using MTS-5 axis friction stir welder. FSW were carried out under optimum welding parameters with travel speed of 187mm/m...
Research
The aim of the present work is to investigate the fatigue behavior of friction stir welded joints for dissimilar aluminum alloys (2024-T3 and 7020-T6). Friction stir welding (FSW) had been done for 6.6 mm thick plate by using NC milling machine with R18 tool steel of 18mm with shoulder diameter and 6mm pin diameter with different tool designs; thre...
Research
The aim of the present work is to investigate the fatigue behavior of friction stir welded joints for dissimilar aluminum alloys 5052-H34 and 7075-T6. Friction stir welding (FSW) has been done on 4.826mm (0.19) in thick plate by using MTS-5 axis friction stir welder. FSW were carried out under optimum welding parameters with travel speed of 187mm/m...
Conference Paper
Abstract The material used in this work is brass alloy type (C38500). Many specimens were prepared for corrosion test with the dimensions of (15*15*3) mm according to ASTM G71-31.Then some of them subjected to annealing heat treatment including heating to temperature of 450ºC for half hour and furnace cooled. Optical microscopy was used to observe...
Article
Full-text available
In this study two different welding processes have been considered, a conventional tungsten inert gas (TIG) and a relatively new solid state welding known as friction stir welding (FSW). TIG welding process has been performed on Al 6061-T6 of thickness 4mm by using filler metal of Al-Mg alloy type (ER5356) according to AWS classification metal with...
Patent
Full-text available
يهدف البحث الحالي الى تحضير مواد مركبة معدنية ذات أساس( الألمنيوم-8 % سليكون) ومضافا اليها كرافيت دقائقي. تم تحضير خليط مسحوق من الكرافيت المطلي بدقائق من النحاس النقي ( 99.999 % ) بتقنية التسبيك الميكانيكي (Mechanical Alloying). ويتراوح حجم دقائق المسحوق m (70 – 100). تم أضافة الناتج من خليط المسحوق الى منصهر السبيكة الأساس وبنسب مختلفة (2 ,4 ,6)...
Article
Full-text available
This research concerns with studying the effect of sudden increment in temperature or thermal shock effect on Stress Intensity Factor generated in the crack region. The Mechanical Stress Intensity Factor (MSIF) was computed using the Finite Element Method technique with the aid of ANSYS software as well as a theoretical methods. The percent of erro...