激光与光电子学进展, 2019, 56 (10): 101402, 网络出版: 2019-07-04
选区激光熔化所用IN738合金粉末的特性与成形性 
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Properties and Formability of IN738 Alloy Powder for Selective Laser Melting
图 & 表
图 3. 同批次不同形态IN738粉末的SEM形貌。(a) IN738合金粉末的整体形貌;(b)棒状的粉末颗粒;(c)包覆式黏连颗粒;(d)卫星球颗粒
Fig. 3. SEM morphologies of different forms of IN738 alloy powders from same batch. (a) Overall morphology of IN738 alloy powder; (b) rod-shaped powder particles; (c) coated adhesion particles; (d) satellite sphere particles
图 4. IN738合金粉末的表面形貌及其内部组织。(a)合金粉末粒径为72.23 μm;(b)合金粉末粒径为33.14 μm;(c)合金粉末粒径为14.35 μm;(d)合金粉末粒径为6.72 μm;(e)(f)不同形态的空心粉末
Fig. 4. Surface morphology and internal organization of IN738 alloy powder. (a) Alloy powder particle size is 72.23 μm; (b) alloy powder particle size is 33.14 μm; (c) alloy powder particle size is 14.35 μm; (d) alloy powder particle size is 6.72 μm; (e)(f) different forms of hollow alloy powders
图 6. IN738打印零件表面形貌及其内部组织。(a)散落在零件表面的飞溅颗粒;(b)镶嵌在零件内部的飞溅颗粒;(c)熔池形貌;(d)熔池内部组织
Fig. 6. Surface morphology and internal organization of IN738 printed component. (a) Splash particles scattered on part surface; (b) splash particles embedded inside part; (c) morphology of molten pool; (d) internal organization of molten pool
表 1IN738合金粉末化学成分(质量分数,%)
Table1. Chemical composition of IN738 alloy powder (mass fraction, %)
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表 2IN738合金粉末物理性能测试结果
Table2. Physical property test results of IN738 alloy powder
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杨倩, 胡勇, 丁雨田, 许佳玉, 杨小康, 吴栋. 选区激光熔化所用IN738合金粉末的特性与成形性[J]. 激光与光电子学进展, 2019, 56(10): 101402. Qian Yang, Yong Hu, Yutian Ding, Jiayu Xu, Xiaokang Yang, Dong Wu. Properties and Formability of IN738 Alloy Powder for Selective Laser Melting[J]. Laser & Optoelectronics Progress, 2019, 56(10): 101402.
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