316L不锈钢表面激光熔化沉积CoCrNiCu中熵合金的界面相容性

于云鹤, 谢勇, 陈鹏, 董浩凯, 侯纪新, 夏志新

Interfacial Compatibility for Laser Melting Deposition of CoCrNiCu Medium-Entropy Alloy on 316L Austenitic Stainless Steel Surface

YU Yunhe, XIE Yong, CHEN Peng, DONG Haokai, HOU Jixin, XIA Zhixin

表1 CoCrNiCu MEA与316L不锈钢的初始成分以及CoCrNiCu MEA/316L不锈钢异种材料界面不同位置化学成分的EDS测定结果 (mass fraction / %)

Table 1 Chemical compositions of original CoCrNiCu MEA and 316L stainless steel and different positions of heterogeneous interface between CoCrNiCu MEA and 316L stainless steel measured by EDS

Material Position Co Cr Ni Cu Fe Mo Mn Si C CoCrNiCu MEA P1 22.7 20.9 25.7 14.8 16.0 - - - - P2 23.3 21.5 26.1 12.6 16.5 - - - - Transition zone P3 20.5 20.7 23.6 10.6 24.6 - - - - P4 21.1 20.8 23.5 10.5 24.1 - - - - 316L stainless steel P5 0.9 17.3 10.7 0.6 Bal. 1.90 1.07 0.39 0.03* P6 0.9 17.5 10.3 0.6 Bal. 2.00 1.02 0.44 0.03* CoCrNiCu MEA Original 25.3 22.3 25.2 27.2 - - - - - 316L stainless steel Original - 16.5 10.2 - Bal. 2.06 1.22 0.53 0.03