依据GB 4334—2008中的不锈钢10%草酸侵蚀试验方法,研究了固溶制度对奥氏体不锈钢0Cr18Ni10Ti晶间腐蚀的影响。研究表明:0Cr18Ni10Ti的抗腐蚀性能随固溶温度的升高而降低,晶间腐蚀随保温时间的延长有加重的趋势。固溶温度在1 010~1 050℃时,0Cr18Ni10Ti晶粒细小,晶界上无明显的碳化物析出,晶界无腐蚀沟,耐晶间腐蚀性能好,同时可以获得良好的力学性能。 According to GB 4334-2008 stainless steel 10% oxalic acid corrosion test method to study the solid solution system austenitic stainless steel 0Cr18Ni10Ti intergranular corrosion. The results show that the corrosion resistance of 0Cr18Ni10Ti decreases with the increase of solution temperature, and intergranular corrosion tends to increase with the increase of holding time. The grain size of 0Cr18Ni10Ti is small when the solid solution temperature is from 1 010 to 1 050 ℃. No obvious carbides are precipitated on the grain boundaries. There is no corrosion groove in the grain boundaries, and good intergranular corrosion resistance and good mechanical properties can be obtained.