Tianchun Zou, Minying Chen, He Zhu, Yao Ou. Research on High Cycle Fatigue Performance of AlSi7Mg Alloy Fabricated by Selective Laser Melting[J]. Laser & Optoelectronics Progress, 2020, 57(23): 231408
- Laser & Optoelectronics Progress
- Vol. 57, Issue 23, 231408 (2020)
Fig. 1. Morphology of AlSi7Mg alloy powders
Fig. 2. Standard fatigue sample of AlSi7Mg alloy formed by SLM
Fig. 3. OM image of microstructure of as-built AlSi7Mg alloy formed by SLM. (a) Horizontal cross section; (b) vertical cross section
Fig. 4. SEM image of the cross-section overlap of as-built microstructure of the AlSi7Mg alloy formed by SLM
Fig. 5. S-N curve of AlSi7Mg aluminum alloy fatigue specimen
Fig. 6. Fatigue fracture diagrams of AlSi7Mg alloy under different stress amplitudes. (a) 120MPa; (b) 150MPa; (c) 180MPa; (d) 200MPa
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Table 1. Chemical composition of the AlSi7Mg alloy powders (mass fraction, %)
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Table 2. Comparison of tensile properties of cast and SLM formed AlSi7Mg and AlSi10Mg alloys
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