Guang Yang, Wenbei Zou, Chao Wang, Xiangming Wang. Microstructure and Properties of Laser Additive Jointing Heterogeneous Aluminum Alloys[J]. Chinese Journal of Lasers, 2022, 49(22): 2202010
- Chinese Journal of Lasers
- Vol. 49, Issue 22, 2202010 (2022)
Fig. 1. LAJ diagram of heterogeneous aluminum alloy and sampling diagram of tensile parts
Fig. 2. Schematic of tensile sample size
Fig. 3. Microstructures of LAJ substrate. (a) SLM AlSi10Mg aluminum alloy substrate; (b) WAAM 2024 aluminum alloy substrate
Fig. 4. YOZ cross-section microstructures of AlSi10Mg powder jointing specimens. (a) Macrostructure of jointing area; (b) jointing area of SLM AlSi10Mg aluminum alloy substrate; (c) middle part of jointing area; (d) jointing area of WAAM 2024 aluminum alloy substrate
Fig. 5. YOZ cross-section microstructures of 2024 powder jointing specimens. (a) Macrostructure of jointing area; (b) jointing area of SLM AlSi10Mg aluminum alloy substrate; (c) middle part of jointing area; (d) jointing area of WAAM 2024 aluminum alloy substrate
Fig. 6. EDS analysis results of LAJ area. (a1)－(a3)AlSi10Mg powder jointing specimens; (b1)－(b3)2024 powder jointing specimens
Fig. 7. Microhardness curves of LAJ specimens. (a) AlSi10Mg powder jointing specimens; (b) 2024 powder jointing specimens
Fig. 8. Stress－strain curves of tensile samples. (a) Heterogeneous aluminum alloy substrates; (b) LAJ specimens
Fig. 9. Photos of LAJ tensile samples
Fig. 10. Tensile properties of LAJ specimens
Fig. 11. Fractography of tensile samples. (a)(b) AlSi10Mg powder jointing specimens; (c)(d) 2024 powder jointing specimens
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Table 1. Chemical compositions of powder (mass fraction, %)
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