Xiaoyan Leng, Yelin Xia, Sichen Xu, Chao Wang, Zhenhai Jiang. Study on the Microstructure and Mechanical Properties of CoCr Alloy Using Laser Melting Deposition[J]. Laser & Optoelectronics Progress, 2022, 59(23): 2316001
- Laser & Optoelectronics Progress
- Vol. 59, Issue 23, 2316001 (2022)
Fig. 1. SEM image of CoCrMoW alloy powder
Fig. 2. Multi-layer sample and tensile sample size. (a) CoCrMoW alloy multi-layer sample; (b) tensile specimen size; (c) processed tensile specimens
Fig. 3. Microstructure of coatings at different powers. (a1)-(d1) Macro morphology of the coatings; (b1)-(b4) bottom part of the coatings; (c1)-(c4) middle part of the coatings; (d1)-(d4) top part of the coatings
Fig. 4. XRD patterns. (a) XRD patterns of coatings at different laser powers; (b) magnified view in the range of 42°-45.5°
Fig. 5. Microhardness of CoCrMoW alloy
Fig. 6. Microstructure of CoCrMoW alloy block. (a) Macro morphology; (b)-(d) enlarged views of the top, middle, and bottom of the block; (e) microhardness of the block
Fig. 7. Stress-strain curves of CoCrMoW alloy
Fig. 8. Tensile fracture morphology of CoCrMoW sample at room temperature. (a) Macro morphology of fracture; (b) internal defect; (c) cleavage plane; (d) smooth fracture plane
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Table 1. Element composition of CoCrMoW alloy powder
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Table 2. Tensile test data of CoCr alloy
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