对Ｃａ变质处理的奥氏体－贝氏体耐磨锰钢进行了热力学二维点阵错配度计算，采用ＴＥＭ和ＳＥＭ观察及电子探针分析，发现ＣａＳ可以作为共晶体（奥氏体－渗碳体）的异质核心而使共晶体球化．
Thermodynamical study and two-dimensional lattice misfitting calculation have been carried out on the modiffication of Ca for the austenite-cemmentite eutectic reaction.EMPA,TEM and SEM observations show that the CaS may be as the heterogeneous nuclei of the nodular eutectic(austenite and cementite) in the austenite-bainite wear-resistant manganese steel.
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