尺寸设计对选区激光熔化304L不锈钢显微组织与性能的影响

侯娟, 代斌斌, 闵师领, 刘慧, 蒋梦蕾, 杨帆

Influence of Size Design on Microstructure and Properties of 304L Stainless Steel by Selective Laser Melting

HOU Juan, DAI Binbin, MIN Shiling, LIU Hui, JIANG Menglei, YANG Fan

图4 SLM 304L不锈钢沿打印构建方向显微组织的OM像

Fig.4 Low (a, c) and high (b, d) magnified OM images of SLM 304L ‘fish scale’ morphology (a) and columnar grains (b) with melt pool boundary on longitudinal plane, and laser exposure traces (c) and equiaxed grains (d) on horizontal plane