激光与光电子学进展, 2021, 58 (1): 0114006, 网络出版: 2021-01-28
选区激光熔化316L不锈钢成形工艺与性能研究 下载: 816次
Forming Technology and Properties of 316L Stainless Steel by Selective Laser Melting
图 & 表
图 3. 不同激光能量密度下成形试样的表面形貌。(a) E=48 J/mm3; (b) E=54 J/mm3; (c) E=60 J/mm3; (d) E=66 J/mm3
Fig. 3. Surface morphologies of specimens formed at different laser energy densities. (a)E=48 J/mm3; (b) E=54 J/mm3; (c)E=60 J/mm3; (d) E=66 J/mm3
图 4. 相同激光能量密度下不同P和v对应的成形试样的表面形貌。(a) =160 W, v=1000 mm/s; (b) =180 W,v=1125 mm/s; (b) =200 W,v=1250 mm/s; (d) Fig. 4. Surface topography of formed specimens corresponding to different parameters at the same laser energy density.(a) =160 W, v=1000 mm/s; (b) =180 W,v=1125 mm/s;(c)
Fig. 4. Surface topography of formed specimens corresponding to different parameters at the same laser energy density.(a) =160 W, v=1000 mm/s; (b) =180 W,v=1125 mm/s;(c)
图 5. 不同激光能量密度下成形316L不锈钢的表面硬度
Fig. 5. Surface hardness of 316L stainless steel formed at different laser energy densities
图 6. 不同激光能量密度下成形试样的抗拉强度和延伸率
Fig. 6. Tensile strength and elongation of formed specimens at different laser energy densities
图 7. 不同工艺参数下成形试样的抗拉强度和延伸率
Fig. 7. Tensile strength and elongation of specimens formed at different process parameters
图 9. 两组参数下成形试样的抗拉强度和延伸率。(a) =180 W, v=1000 mm/s;(b) =180 W, v=900 mm/s
Fig. 9. Tensile strength and elongation of formed specimens at two parameters. (a) =180 W, v=1000 mm/s;(b) =180 W, v=900 mm/s
图 10. 断口形貌。(a)原始试样;(b)水冷试样;(c)空冷试样
Fig. 10. Fracture morphologies.(a) Original specimen;(b) water-cooled specimen;(c) air-cooled specimen
图 11. 316L不锈钢热处理前后的极化曲线
Fig. 11. Polarization curves of 316L stainless steel before and after heat treatment
图 12. 316L不锈钢热处理前后的显微组织。(a)原始试样;(b)空冷试样;(c)水冷试样
Fig. 12. Microstructures of 316L stainless steel before and after heat treatment.(a)Original specimen;(b)air-cooled specimen;(c)water-cooled specimen
表 1316L不锈钢粉末的化学成分
Table1. Chemical composition of 316L stainless steel powder
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表 2不同工艺参数下成形试样的致密度
Table2. Relative density of specimens formed at different process parameters
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姚燕生, 唐建平, 汪俊, 葛张森, 张成林. 选区激光熔化316L不锈钢成形工艺与性能研究[J]. 激光与光电子学进展, 2021, 58(1): 0114006. Yao Yansheng, Tang Jianping, Wang Jun, Ge Zhangsen, Zhang Chenglin. Forming Technology and Properties of 316L Stainless Steel by Selective Laser Melting[J]. Laser & Optoelectronics Progress, 2021, 58(1): 0114006.