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25Cr-20Ni 奥氏体不锈钢是重要的耐高温合金之一。钴对25Cr-20Ni 钢的影响是减少或阻止σ相析出。众所周知,高速钢中加钴可以提高耐热性,在25Cr-20Ni 钢中加钴也有相似的作用。钴对25Cr-20Ni 的蠕变性能的影响又如何?本文对这个问题进行了研究。
25Cr-20Ni austenitic stainless steel is one of the important high temperature alloys. The effect of cobalt on 25Cr-20Ni steels is to reduce or prevent the sigma phase precipitation. As we all know, high-speed steel with cobalt can improve heat resistance, cobalt in 25Cr-20Ni steel also have similar effects. What is the effect of cobalt on the creep properties of 25Cr-20Ni? This paper studies the problem.