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6 SLM 304L不锈钢不同尺寸效应样品室温拉伸强度与塑性

Table 6 Strengthes and ductilities of SLM 304L samples with different sizes

Sample Yield strength Ultimate tensile Elongation MPa strength / MPa % T100-L100 541.5 ± 17 691.6 ± 14 52.7 ± 0.6 T100-L500 478.7 ± 13 667.0 ± 16 61.0 ± 0.2 T100-L700 475.7 ± 15 654.7 ± 20 60.1 ± 0.9 T100-L1000 477.8 ± 9 665.9 ± 23 66.6 ± 0.3 T200-L100 504.6 ± 15 682.8 ± 17 54.9 ± 0.7 T200-L500 476.6 ± 8 656.1 ± 19 59.9 ± 0.9 T200-L700 470.2 ± 11 649.1 ± 22 63.3 ± 0.4 T200-L1000 464.2 ± 15 646.3 ± 14 67.0 ± 0.5 T300-L100 486.8 ± 13 674.6 ± 24 56.6 ± 0.8 T300-L500 470.9 ± 18 669.2 ± 18 59.3 ± 0.9 T300-L700 472.9 ± 8 667.8 ± 16 63.0 ± 1.0 T300-L1000 459.8 ± 12 662.7 ± 16 63.1 ± 1.2