| 电气化铁路接触网铜合金中锚线夹失效分析 |
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| 引用本文： | 师静蕊,袁泽喜.电气化铁路接触网铜合金中锚线夹失效分析[J].理化检验(物理分册),2014(1):57-60. |
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| 作者姓名： | 师静蕊 袁泽喜 |
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| 作者单位： | 武汉科技大学,武汉430081 |
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| 摘 要： | 采用化学成分分析、金相检验、断口与能谱分析等方法,对开裂的电气化铁路接触网零件——接触线中锚线夹进行了分析。结果表明:该铜合金中锚线夹所含的杂质元素铋在晶界处的偏聚是导致其开裂的主要原因。
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| 关 键 词： | 接触线中锚线夹 裂纹 杂质元素 晶界偏聚 |
Failure Analysis on Mid-anchor Clamp of Copper Alloy for Contact Wire in Electrification Railway Contact Net |
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| Abstract: | The cracked mid-anchor clamp for contact wire in electrification railway contact net was analyzed by means of chemical composition analysis,metallographic examination,fracture and energy spectrum analysis.The results showed that the impurity element Bi segregation at grain boundaries of mid-anchor clamp of copper alloy was the major reason for cracking. |
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| Keywords: | mid-anchor clamp for contact wire crack impurity element grain boundaries segregation |
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