GH2132材料对接焊接头不同温度疲劳寿命试验研究  

Experimental Study of Fatigue Life of GH2132 Butt Weld Joint at Different Temperatures

作　　者：杜正兴[1] 贾坤荣[1] 岳珠峰[1] 

机构地区：[1]西北工业大学力学与土木建筑学院,陕西西安710072

出　　处：《燃气涡轮试验与研究》2006年第2期39-42,共4页Gas Turbine Experiment and Research

基　　金：国家自然科学基金资助项目(50375124;10472094);航空科学基金资助项目(03B53003)

摘　　要：对GH2132材料对接焊接头进行了两种不同温度(360℃和410℃)下的静载拉伸试验和疲劳试验。静载拉伸试验结果表明,应变速率对GH2132对接焊接头的断裂载荷影响不大。由疲劳试验结果得到了两种温度下的S-N曲线,利用该曲线和有限元分析预测了某GH2132材料对接焊构件焊接接头处的疲劳寿命,结果表明所得寿命满足此构件的设计要求。In this paper, the experiments of static strength and fatigue have been completed on GH2132 butt weld joint at two different temperatures（360℃ and 410℃） . It is shown that the influence of the strain rate on the fracture stress can be neglectable. The S-N curves have also been obtained for two different temperatures. At last, the finite element analysis has been completed to predict the life of GH2132 butt weld joint with the help of S-N curves. The results have shown that the predication life of GH2132 butt weld joint can satisfy the requirement of design.

关 键 词：对接焊 不同温度 S-N曲线 疲劳寿命 

分 类 号：V250.3[一般工业技术—材料科学与工程]