| 4Cr9Si2阀门钢丝冷拔过程中脆断的失效分析 |
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| 引用本文： | 艾家和,董建新,张江海,谢锡善.4Cr9Si2阀门钢丝冷拔过程中脆断的失效分析[J].兵器材料科学与工程,2001,24(5):57-58. |
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| 作者姓名： | 艾家和 董建新 张江海 谢锡善 |
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| 作者单位： | 北京科技大学材料学院,北京,100083 |
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| 摘 要： | 用扫描电镜 /能谱分析、X射线萃取相分析和Thermo -Calc热力学相计算等方法 ,分析了 4Cr9Si2阀门钢丝在冷拔过程中发生脆断的原因。结果表明 ,钢丝脆断是由于中间退火温度选择不合理 ,使 (Cr,Fe) 7C3 相大量析出造成的
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| 关 键 词： | 4Cr9Si2气阀钢丝 能谱分析 X射线萃取相分析 Thermo-Calc热力学相计算 (Cr Fe)7C3 |
| 文章编号： | 1004-244X(2001)05-0057-02 |
| 修稿时间： | 2000年3月26日 |
Failure analysis on brittle rupture of 4Cr9Si2 steel wire for valve during cold drawing |
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| AI Jiahe,DONG Jianxin,ZHANG Jianghai,XIE Xishan Correspondent:AI Jiahe,School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing ,China.Failure analysis on brittle rupture of 4Cr9Si2 steel wire for valve during cold drawing[J].Ordnance Material Science and Engineering,2001,24(5):57-58. |
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| Authors: | AI Jiahe DONG Jianxin ZHANG Jianghai XIE Xishan Correspondent:AI Jiahe School of Materials Science and Engineering University of Science and Technology Beijing Beijing China |
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| Affiliation: | AI Jiahe,DONG Jianxin,ZHANG Jianghai,XIE Xishan Correspondent:AI Jiahe,School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China |
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| Abstract: | The reason of the brittle rupture of 4Cr9Si2 steel wire for valve during cold drawing after medium annealing is carefully analyzed by means of SEM/EDX, phase extraction & X-ray diffraction analysis and Thermo-Calc thermodynamic phase calculation, etc. The results show the brittle rupture is attributed to the fact that the (Cr,Fe) 7C 3 phase precipitates in a large number due to the unsuitable medium annealing temperature. |
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| Keywords: | Cr9Si2 steel wire for valve energy dispersive X-ray spectroscopy(EDX) phase extraction & X-ray diffraction analysis thermo-Calc thermodynamic phase calculation (Cr Fe) 7C 3 |
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