| H13钢铝合金压铸模开裂原因分析 |
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| 引用本文： | 梁思祖,梁耀能,李茅坪.H13钢铝合金压铸模开裂原因分析[J].金属热处理,2002,27(12):48-50. |
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| 作者姓名： | 梁思祖 梁耀能 李茅坪 |
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| 作者单位： | 1. 华南理工大学,机电系,广州,510640
2. 广东省机械研究所,广州,510630 |
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| 摘 要： | 电镜及金相检验结果分析表明，由于压铸模模具的成分偏析而产生由马氏体及残留奥氏体构成的带状组织缺陷，工作时模具表面出现回火裂纹，在内应力作用下模具发生早期热疲劳破坏。
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| 关 键 词： | H13钢 铝合金压铸模 开裂 热疲劳 失效 |
| 文章编号： | 0254-6051(2002)12-0048-03 |
Failure Analysis on Aluminum Alloy Casting Die Made of H13 Steel |
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| LIANG Si zu ,LIANG Yao neng ,LI Mao ping.Failure Analysis on Aluminum Alloy Casting Die Made of H13 Steel[J].Heat Treatment of Metals,2002,27(12):48-50. |
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| Authors: | LIANG Si zu LIANG Yao neng LI Mao ping |
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| Affiliation: | LIANG Si zu 1,LIANG Yao neng 1,LI Mao ping 2 |
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| Abstract: | The failure of casting die made of H13 steel was examined by SEM and metallographic test.The result shows that the failure die was due to thermal fatigue resulting from composition segregation.There was banded structure composed of martensite and residual austenite in the die.Consequently,tempering crack occurred in the die surface during its service period and the die failed early at the joint action of thermal stress and structure stress. |
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| Keywords: | casting die thermal fatigue failure |
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