齿轮开裂失效分析
Cracking Failure Analysis of Gear
摘 要
采用断口分析、化学成分分析、低倍检验、金相检验和硬度测试等方法对某批经渗碳、淬火热处理及磨齿加工后放置一段时间发生开裂的齿轮的失效原因进行分析。结果表明：齿轮渗碳层碳化物级别过高,加上淬火后齿轮齿部应力集中,磨齿时又产生磨削裂纹,齿轮在放置期间由于应力导致裂纹扩展而开裂。
开裂
碳化物
磨削
应力集中
gear
cracking
carbonization
grinding
stress centralization
Abstract
Some gears occurred cracking after carburizing,quenching and gear grinding. The cracking reason was analyzed by means of fracture analysis,chemical composition analysis,macrostructure test,hardness test,metallographic test and so on. The results showed that the carbonization level was so high after carburizing,there were lots of centralized stress on the teeth of gear after quenching,and the grinding cracks appeared when the teeth were grinded,finally due to crack during deposited in the depository.
中图分类号 TH132.411
所属栏目 质量控制与失效分析
基金项目
收稿日期 2007/12/26
修改稿日期
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备注徐涛元(1980-),男,助理工程师,工学学士。
引用该论文: XU Tao-yuan. Cracking Failure Analysis of Gear[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2009, 45(5): 315～317
徐涛元. 齿轮开裂失效分析[J]. 理化检验－物理分册, 2009, 45(5): 315～317
被引情况:
【1】苏虹,崔怀玲,戴维弟, "20CrNi2Mo钢齿轮磨削裂纹成因分析",理化检验－物理分册 50, 911-913(2014)
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参考文献
【1】GB/T 3077-1999 合金结构钢[S]．
【2】任颂赞,张静江,陈质如,等.钢铁金相图谱[M]. 上海：上海科学技术文献出版社,2003．
【2】任颂赞,张静江,陈质如,等.钢铁金相图谱[M]. 上海：上海科学技术文献出版社,2003．
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