Yuhui Zhao, Chen He, Jibin Zhao, Jian Zou, Zhiguo Wang, Zhenfeng He. Process of Sc/Zr-Modified Al-Mg Alloy Prepared by Additive/Equivalent Composite Manufacturing[J]. Acta Optica Sinica, 2023, 43(7): 0716002
- Acta Optica Sinica
- Vol. 43, Issue 7, 0716002 (2023)
Fig. 1. Laser melting deposition additive manufacturing system
Fig. 2. Deposited samples treated with different hot rolling reduction drafts
Fig. 3. Sampling position and size of tensile specimen with different reduction drafts. (a) 15%; (b) 30%; (c) 50%; (d) size of tensile specimen
Fig. 4. SEM images of deposited samples with different reduction drafts. (a) 0; (b) 15%; (c) 30%; (d) 50%
Fig. 5. SEM morphologies of equiaxed grains in the deposited layer with different reduction drafts. (a) 0; (b) 15%; (c) 30%; (d) 50%
Fig. 6. Line scanning results of fusion line of samples with different hot rolling reduction drafts. (a) Non-rolled; (b) reduction draft of 50%
Fig. 7. Dot diagram of micro-hardness testing
Fig. 8. Micro-hardness of deposited samples with different reduction drafts. (a) 0; (b) 15%; (c) 30%; (d) 50%
Fig. 9. Stress-strain curves of laser melting deposition samples with different reduction drafts. (a) Stress-strain curves; (b) non-rolled specimen; (c) specimen with reduction draft of 50%
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Table 1. Chemical composition of Al-Mg-Sc-Zr alloy powder and substrate
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