January 2025
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23 Reads
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7 Citations
Journal of Material Science and Technology
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Publications (3)
June 2024
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102 Reads
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10 Citations
WADED Al-Mg and Al-Mg-Sc-Zr aluminium alloy thin-wall components were produced. Heat treatment (350°C aging for 4 h) was further conducted. The effects of Sc/Zr addition on porosity, microstructure, mechanical properties and corrosion behaviour were investigated. With Sc/Zr adding, pore area fraction decreased from 0.208 to 0.005% and grain size decreased from 84.34 to 19.54 μm. In WADED Al-Mg-Sc-Zr component, microstructure showed refined equiaxed grains. Mechanical properties were improved with 360 MPa ultimate tensile strength (UTS), 185 MPa yield strength, and 23.31% elongation. After heat treatment, UTS increased to 388 MPa with good ductility (22.53%) maintained. The grain refinement and Al3(Sc, Zr) particles were the key factors for mechanical property improvement. The corrosion behaviour was improved with introduced Sc/Zr and further optimised after heat treatment. The corrosion exhibited layered characteristics due to the distribution of primary Al3(Sc, Zr) while minor-size secondary Al3(Sc, Zr) along grain boundaries improved the corrosion behaviour.
March 2024
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14 Reads
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6 Citations
Journal of Materials Research and Technology
Citations (3)
... It is widely used in critical components such as turbine blades, tail cones, and afterburners due to its excellent high-temperature properties and corrosion resistance, with a short-term operating temperature reaching up to 1090 • C [1][2][3]. Selective Laser Melting (SLM) is a key additive manufacturing technique that utilizes a laser beam to melt metal powder layer by layer, enabling the rapid fabrication of complex structural components [4][5][6]. However, the mechanical properties of the SLM-fabricated GH3536 alloy, especially at a service temperature range of 900 • C to 1000 • C, are crucial for determining whether it meets usage requirements. ...
- Citing Article
January 2025
Journal of Material Science and Technology
... Wire arc additive manufacturing (WAAM), with the advantages of a high material utilisation rate, high deposition rate and low equipment cost, is a special technology used to directly fabricate parts by depositing layers of material [8,9]. Nowadays, WAAM has been used to fabricate NiTi shape memory alloy walls using commercial NiTi wire [10,11]. ...
- Citing Article
- Full-text available
June 2024
... Also, Cu reduces the hydrogen treatment is usually performed, involving a solution treatment followed by artificial ageing. During the solution treatment, the alloy is heated up to 495-523 • C [20,21] to dissolve Cu-and Mg-rich phases [22,23], avoiding any local melting. The subsequent quenching prevents the precipitation of the dissolved elements, while the artificial ageing performed in the range 165-210 • C [24,25] leads to the formation of well-dispersed coherent or semi-coherent nanoprecipitates such as β′-Mg 2 Si, θ′-Al 2 Cu and Q′-Al 5 Cu 2 Mg 8 Si 6 [9,26,27], that increase the mechanical properties of the α-Al matrix [2,28]. ...
- Citing Article
March 2024
Journal of Materials Research and Technology