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观察研究了试验钢在不同温度下加热时晶界处Ｙ和ＴｉＣ等沉淀的形貌特征，相对数量的变化及其同钢中钛碳比，硫含量和热处理的关系，并运有碳，硫原子相互作用的机制解释了Ｙ相和ＴｉＣ相对数量的变化，发现在６５０℃下Ｙ相可以在晶界上以粒状沉淀的一种新的沉淀机制。
The morphological characteristics and relative quantities of Y and TiC precipitates at the grain boundaries when the test steel is heated at different temperatures were observed and studied, and their relationship with the ratio of titanium to carbon, sulfur content and heat treatment in steel was also studied. Carbon and sulfur The mechanism of atomic interaction explained the relative amount of Y phase and TiC changes and found a new precipitation mechanism that Y phase can precipitate on the grain boundary at 650 ℃.