Sura Salim Ahmed

University of Technology, Iraq · Department of Materials Engineering

In this research have been investigated the corrosion resistance of Nickel and Copper coatings layer deposited by thermal spraying method. The experimental work includes an adding a binary Ni-Cu coating layer to the low carbon steel substrate with powder particle size 1926.6 nm. The spraying gases pressure were (0.5, 1bar) for oxygen and acetylene...

Low carbon steel is widely used in the oil refinery plants. It exhibits poor corrosion resistance, however, there are several ways to minimize corrosion of low carbon steel. In this research, a binary system of Ni-Cu is used to apply a coating layer on the low carbon steel substrate. Overlay thermal spray technique was used to perform a coating lay...

thin-walled cylinder tubes of different sizes made of copper and aluminum under axial compression test were performed in an Instron machine. The diameter to thickness (DIt) and length to diameter (LID) ratios were varied from 18.4 to 50.76 and 1 to 3 for both metals respectively. All these tubes deformed in several modes and the effects of both rat...

In this study a preparation of composite materials with a polyester base reinforced by low cost industrial waste and weight fraction from of powder (1,3,5,7,9) % wt of marble particles prepared by manually technique. Mechanical properties have been studied and discussed. The results showed that the new composite materials supported by marble partic...

Fluoroaluminosilicate glass was prepared from recycled low alumina glass, with the additions of AlF3 and CaF. That was to provide a cheap source of proper glass required to prepare glass ionomer cement GIC. Three batches of the fluoroaluminosilicate glass were prepared with different additions of CaF varied at the expense of AlF3. i.e., the glas...

In this research, smart mortar was fabricated with metallic powders recycled additives from industrial sources to increase the electrical conductivity of the cement mortar and hence, to increase its use in the smart applications like electromagnetic shielding and solar cells. The Ordinary Portland Cement (OPC) was adopted in order to prepare the co...

In the current research, a samples of transparent color and colorless window glass were prepared, (includes metal transition oxides) for construction applications. A nano-film layer of zinc oxide ZnO was deposited by spray pyrolysis technique for use in sustainability applications prepared. Structural properties (x-ray diffraction XRD, scanning ele...

The complete dentures are made from different acrylic resins by various technologies. These materials are fragile and frequently appear cracks that lead to fractures of prosthetic dentures. Many studies are done to develop the properties of PMMA resin that is used for upper and lower complete denture base materials, by using composite materials con...

This work involves using Saccharum short fibers as reinforcement for unsaturated polyester before and after chemical treatment for fibers. The chemical treatment was done in NaOH solution with different concentrations include 0.125, 0.25, 0.375, 0.5 and 0.625 M at room temperature. The prepared composites were characterized by FTIR spectra to confi...

Radiography inspection have been used in this work to detects and image the corrosion in the outside surface of the pipe. Gamma ray with 0.662 MeV from 127Cs source have been chosen for this inspection while NaI(Tl) detector is use to detect and collect the scatter photons with radius 6cm. A simulation follow the history of photon by using Fortran...

The Compton backscattering imaging (CBSI) technique has been investigated in this work. A novel nondestructive inspection (NDI) technique for detecting corrosion on the outer surface of pipe and reconstructing complete image in two dimensions (2D) is based on acquiring multiple Compton backscattered (MCBS) gamma ray images of pipe surface. In this...

This research concerned with building a simulation program to detect and imaging the corrosion in the insulated or non-insulated pipe by using Monte Carlo simulation that written in FORTRAN–90 Language. This program is used to follow the history of photons and to calculate the energy scatter and scattering angle. The nondestructive test technique o...

The multiple Compton backscattering (MCBS) technique has been used to investigate the detection and imaging corrosion under the insulation pipe. An energy source with a mono – energy 0.662MeV of ¹³⁷ Cs has been used. Gamma ray photons have been allowed to be incident vertically on the insulator pipe whose outside diameter, wall and asbestos insulat...

This research deals with the study of the effect of fibers volume fraction and fibers orientation on the thermal conductivity and wall surface temperatures for composite specimen in form of Lee's disk by using experimental work and finite element technique. The results show that the thermal conductivity increases with increasing fiber volume fracti...

and fibers orientation on the thermal conductivity and wall surface temperatures for composite specimen in form of Lee’s disk by using experimental work and finite element technique. The results show that the thermal conductivity increases with increasing fiber volume fraction of the composite specimen, and in the longitudinal direction is larger t...