等高盘淬火开裂原因分析
Analysis on Reason of Contour Plate Quenching Cracks
李红莉
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作者单位：陕西工业职业技术学院材料工程学院
中文关键字：等高盘，淬火,弧形裂纹
英文关键字：Contour plate, Quenching , Arc-shaped crack
中文摘要：采用宏观、微观检验、硬度测试等手段，对T10A钢等高盘淬火后产生开裂的原因进行分析,发现开裂部位和裂纹扩展路径具有明显的弧形裂纹特征。结果表明，工件加热温度过高，整体快速冷却使薄壁形成粗大片状马氏体以及截面尺寸突变处厚壁未淬透形成的非马氏体组织，为弧形裂纹形成提供了条件。
英文摘要： This paper analyzes the reason of contour plate quenching cracks by marco-inspection, micro-inspection, hardeness testing and other methods. The results showed that the workpiece heating temperature is too high, thin wall is form coarse martensite by the overall rapid cooling and thick wall of section size mutation position is form non-martensite, provides arc crack formation conditions.