高温合金GH4169在TIG焊接状态下的低周疲劳性能分析  

Analysis of Low-cycle Fatigue Performance for High Temperature Alloy GH4169 under TIG Welding

作　　者：黄海鸿[1] 王振苏[1] 赵海涛[1] 

机构地区：[1]北京航空制造工程研究所,北京100024

出　　处：《航空精密制造技术》2014年第1期31-33,42,共4页Aviation Precision Manufacturing Technology

摘　　要：通过对GH4169的TIG焊接件下进行低周疲劳性能测试,得到相应的试验数据,并将得出的数据进行拟合分析最终得出该GH4169焊接件薄板在该状态下的曲线、疲劳寿命、疲劳强度等力学性能指标。在进行性能测试时还针对薄板试验件做了相应的夹具以改善其在试验过程的试样状态合理有效。The low-cycle fatigue tests for TIG welding （tungsten inert gas arc welding） samples of GH4169 alloy were carried out. The special clamp for the thin samples was designed to eliminate the side-deformation during test loading. The results of curve, fatigue life and fatigue strength of the TIG welding joints were acquired by fitting the test data.

关 键 词：GH4169 TIG焊接 低周疲劳性能 

分 类 号：TG146.15[一般工业技术—材料科学与工程]