储液筒吸气管断裂分析
Fracture Analysis of Reservoir Inspiratory Tube
摘 要
通过化学成分分析、宏观检验、金相检验和断口分析等方法分析了压缩机储液筒吸气管根部断裂的原因。结果表明: 储液筒吸气管在外加大应力作用下产生了低周疲劳断裂; 二次焊接时导致的晶粒粗大降低了吸气管的抗疲劳性能。
储液筒
吸气管
断裂
疲劳
晶粒度
compressor
reservoir
inspiratory tube
fracture
fatigue
grain size
Abstract
The fracture reason in the root of reservoir inspiratory tube of compressor was analyzed by means of chemical composition analysis, macroscopic examination, metallographic examination, fracture analysis and so on. The results showed that low cycle fatigue fracture occured in reservoir inspiratory tube under applied high stress; it was the secondary welding resulted in grain coarsening that reduced fatigue durability of inspiratory tube.
中图分类号 TH45
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收稿日期 2011/8/2
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备注温筠(1962-), 女, 高级工程师, 学士。
引用该论文: WEN Yun,WANG Wei-fa,FAN Zhang-zeng. Fracture Analysis of Reservoir Inspiratory Tube[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2011, 47(11): 717～718
温筠,王维发,樊张增. 储液筒吸气管断裂分析[J]. 理化检验－物理分册, 2011, 47(11): 717～718
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参考文献
【1】张栋.失效分析[M].北京: 国防工业出版社, 2004.
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