| 无氧铜弯头开裂分析 |
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| 引用本文： | 刘淑凤,王永兰,张智慧,刘安生,王书明.无氧铜弯头开裂分析[J].理化检验(物理分册),2008,44(9):504-506. |
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| 作者姓名： | 刘淑凤 王永兰 张智慧 刘安生 王书明 |
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| 作者单位： | 北京有色金属研究总院分析测试所,北京100088 |
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| 摘 要： | 无氧铜基器件在后期冷加工过程中在弯头处出现裂纹。对该失效件进行扫描电镜、金相和氧含量分析，并与未出现裂纹的正常件进行对比。结果表明，氧含量超标，存在大量的脆性相氧化亚铜，且材料内部仍留有部分残余应力，是失效的主要原因。
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| 关 键 词： | 无氧铜 弯头 开裂 氧含量 氧化亚铜 残余应力 |
CRACKING ANALYSIS OF ELBOW OF OXYGEN-FREE COPPER |
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| LIU Shu-feng,WANG Yong-lan,ZHANG Zhi-hui,LIU An-sheng,WANG Shu-ming.CRACKING ANALYSIS OF ELBOW OF OXYGEN-FREE COPPER[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2008,44(9):504-506. |
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| Authors: | LIU Shu-feng WANG Yong-lan ZHANG Zhi-hui LIU An-sheng WANG Shu-ming |
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| Affiliation: | (Analysis and Testing Department, Beijing General Research Institute for Non-ferrous Metals, Beijing 100088, China) |
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| Abstract: | The crack of TU2 brazed elbow appeared during the hard-drawn process. It was investigated by means of SEM, metallography and oxygen content analysis. Results showed that the fracture was caused by higher content of O2, a large amount of Cu2 O and residual stress. |
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| Keywords: | Oxygen-free copper elbow cracking oxygen content Cu2O residual stress |
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