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

表7 SLM成形过程中凝固速率(R)和温度梯度(G)的模拟结果

Table 7 Simulation results of solidification rate (R) and temperature gradient (G) in SLM process

X Y Z G R G × R G / R mm mm mm K·m-1 m·s-1 K·s-1 K·s·m-2 5 1 1 5116897 0.3075 1573810 16640315 5 1 2 5143065 0.3010 1548151 17086594 5 1 5 4789272 0.3078 1474094 15559688