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| The influence of tensile rate and temperature on the tensile properties of 4043 aluminum alloy prepared by wire arc additive manufacturing |
| ZHENG Haoran1, GENG Guoliang1,2, QU Fang3, XU Jiamiao4, YU Shiqi5 |
1. School of Materials Science and Engineering, Heilongjiang University of Science and Technology, Harbin 150022, China;
2. Heilongjiang Provincial Engineering and Technology Research Center for Graphene Powder Application, Heilongjiang University of Science and Technology, Harbin 150022, China;
3. School of Mechanical Engineering, Heilongjiang University of Science and Technology, Harbin 150022, China;
4. School of Electronics and Information Engineering, Heilongjiang University of Science and Technology, Harbin 150022, China;
5. School of Management, Heilongjiang University of Science and Technology, Harbin 150022, China |
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Abstract In this study, 4043 aluminum alloy was fabricated by wire arc additive manufacturing. The microstructure and properties of as-deposited 4043 aluminum alloy were systematically investigated using optical microscope, X-ray diffractometer, digital microhardness tester, and electronic universal testing machine. The results show that the alloy has a uniform microstructure, with Al-Si eutectic phase and α-Al phase as the main phases. All the fracture surfaces exhibit ductile fracture characteristics, while pore defects can weaken the ductility of the alloy. At room temperature, with the increase of tensile rate, the yield strength and tensile strength of the alloy in both transverse and longitudinal directions increase, while the elongation decreases, indicating that the alloy has tensile rate sensitivity. When the tensile rate is fixed at 1 mm/min, the yield strength and tensile strength of the alloy in both transverse and longitudinal directions decrease with the increase of temperature, accompanied by an increase in elongation.
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Received: 14 November 2025
Published: 07 May 2026
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2026, Vol. 31 
