The phase diagram and precipitation behavior of 904L,254SMO,654SMO super austenitic stainless steel and 316L conventional austenitic stainless steel were calculated by thermodynamic simulation software,and the high temperature strength was studied by mathematical regression method.The research shows that the solidification mode of super austenitic stainless steel is full austenitic solidification,the solid phase line temperature is generally low,80～110 ℃ lower than 316L,the σ phase precipitation temperature is higher than 316L,the high temperature strength is higher than 316L,and the hot processing is difficult.
关键词
超级奥氏体不锈钢/平衡相图/固相线温度/析出相/高温强度
Key words
super austenitic stainless steel/equilibrium phase diagram/solid-phase line temperature/precipitated phase/high temperature strength
维普
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