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Cause analysis on fracture of 42CrMo steel brace rod of coal pulverizer
Pages: 42-44
Year: Issue:  4
Journal: Hunan Electric Power

Keyword:  磨煤机撑杆42CrMo准解理断裂金相试验力学性能试验;
Abstract: 采用金相试验、化学成分分析、力学性能试验和断口扫描电镜试验等方法,对某电厂磨煤机撑杆断裂原因进行分析.结果表明:母材金相显微组织含有较粗大马氏体,拉伸性能劣化与冲击韧性差,导致磨煤机撑杆在运行时发生准解理脆性断裂.
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