新热处理工艺调控B元素分布对S31254超级奥氏体不锈钢第二相析出和耐蚀性能的影响

梁超雄, 梁小红, 韩培德

Effect of a New Heat Treatment Process on B Elements Distribution, Second Phase Precipitation and Corrosion Resistance of S31254 Super Austenitic Stainless Steel

LIANG Chaoxiong, LIANG Xiaohong, HAN Peide

表1 0B和40B试样的化学成分

Table 1 Chemical compositions of 0B and 40B steels (mass fraction / %)

Steel C Si Mn P S Cr Ni Mo Cu N B Fe 0B 0.010 0.61 0.43 0.024 0.001 20.18 18.00 6.00 0.69 0.193 - Bal. 40B 0.014 0.62 0.94 0.014 0.003 20.15 18.11 6.12 0.72 0.20 0.004 Bal.