| 60CrMoV钢轧辊热处理后断裂分析 |
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| 引用本文： | 王书田,刘霞.60CrMoV钢轧辊热处理后断裂分析[J].金属热处理,2009,34(12). |
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| 作者姓名： | 王书田 刘霞 |
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| 作者单位： | 1. 包头职业技术学院,内蒙古,包头,014030
2. 内蒙古北方重工业集团有限公司,中心实验室,内蒙古,包头,014030 |
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| 摘 要： | 通过对60CrMoV钢轧辊热处理回火后断裂原因分析得出,轧辊断裂是在热处理残余应力作用下发生脆性断裂,钢中化学成分偏析和非金属夹杂物的聚集分布造成裂纹扩展;轧辊在原工艺基础上增加450 ℃补充回火4 h后没有再出现开裂.
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| 关 键 词： | 60CrMoV轧辊钢 偏析 非金属夹杂物 残余应力 断裂 |
Fracture analysis of 60CrMoV steel roller after heat treatment |
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| WANG Shu-tian,LIU Xia.Fracture analysis of 60CrMoV steel roller after heat treatment[J].Heat Treatment of Metals,2009,34(12). |
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| Authors: | WANG Shu-tian LIU Xia |
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| Abstract: | Through the fracture analysis of 60CrMoV steel heat-treated roller,it is found that the residual stress after heat treatment causes the roller brittle fractare,and the chemical composition segregation and the aggregation of non-metal inclusions in the steel cause the crack propogation.It is possible by supplement tempering at 450 ℃ for 4 h to avoid cracking during heat-treatment. |
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| Keywords: | 60CrMoV roller steel segregation non-metal inclusion residual stress fracture |
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