B、Ce微合金化对S31254超级奥氏体不锈钢析出相及耐蚀性能的影响

马晋遥, 董楠, 郭振森, 韩培德

Effect of B and Ce Micro-alloying on Secondary Phase Precipitation and Corrosion Resistance of S31254 Super Austenitic Stainless Steel

MA Jinyao, DONG Nan, GUO Zhensen, HAN Peide

表 1 实验用S31254不锈钢化学成分 (mass fraction / %)

Table 1 Chemical compositions of S31254 super austenitic stainless steel samples added with B and Ce

Sample C Si Mn P S Cr Ni Mo Cu N B Ce 0B 0.012 0.64 0.47 0.035 0.006 19.18 18.11 6.17 0.71 0.20 0 0 50B 0.012 0.61 0.49 0.017 0.005 18.59 18.11 6.12 0.58 0.20 0.005 0 50B-20Ce 0.018 0.17 1.82 0.007 0.002 19.84 18.07 6.21 0.56 0.199 0.005 0.002 50B-50Ce 0.015 0.17 1.87 0.008 0.002 20.08 17.94 6.02 0.48 0.187 0.005 0.005