直流电位法检测高温合金的疲劳裂纹扩展性能
Fatigue Crack Growth Behavior of Superalloy Detected by High Temperature Direct Current Potential Drop Method
摘 要
介绍了在高温下使用直流电位法测定疲劳裂纹长度的基本原理、试验方法及所需配置的仪器, 并对有关影响因素进行了分析; 并利用Johnson的分析型关系式, 研究了一种适用于自动测定材料高温疲劳裂纹长度的直流电位法, 该方法已成功应用于高温合金疲劳裂纹扩展试验, 其测得的疲劳裂纹扩展速率da/dN-ΔK数据与长焦聚显微镜法测得的数据完全一致。
高温合金
疲劳裂纹扩展性能
direct current potential drop method (DCPD)
superalloy
fatigue crack growth behavior
Abstract
Principle, test method and instruments of direct current potential drop method (DCPD) to test the fatigue cracks length were introduced and influencing factors to the test were also analyzed. DCPD adapted to automatics high temperature fatigue crack length measurements was investigated using Johnson’s formula. The DCPD method was successfully applied to high temperature fatigue crack growth test for superalloy. The da/dN-ΔK test data obtained by DCPD method were exactly the same as them obtained by long distance of microscopy method.
中图分类号 TG115.5+7
所属栏目
基金项目 航空科学基金资助项目(20095321009)
收稿日期 2011/4/18
修改稿日期
网络出版日期
作者单位点击查看
备注王亮(1975-),男,工程师。
引用该论文: WANG Liang,HUANG Xin-yue,GUO Guang-ping. Fatigue Crack Growth Behavior of Superalloy Detected by High Temperature Direct Current Potential Drop Method[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2011, 47(8): 480～482
王亮,黄新跃,郭广平. 直流电位法检测高温合金的疲劳裂纹扩展性能[J]. 理化检验－物理分册, 2011, 47(8): 480～482
被引情况:
【1】李晓阳,韩赞东,冉刚,王柄方, "基于交流电位法的疲劳裂纹长度测量方法与装置",理化检验－物理分册 51, 542-545(2015)
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】丁传富, 王亮,刘建中. 直流电位法自动检测高温疲劳裂纹长度的研究与应用[J]. 试验室研究与探索,2007,26(10):267-269.
【2】JOHNSON H H. Calibrating the electric potential method for studying slow crack growth[J]. Materials Research & Standards,1965,5(9):442-445.
【3】SCHWALBE K H,HELLMANN D. Application of the electrical potential method to crack length measurements using Johnson’s formula[J]. American Society for Testing and Materials,1981,9(3):218-221.
【4】ASTM E647-1995Standard test method for measurement of fatigue crack growth rates[S].
【5】王亮,丁传富. 高温下直流电位法测量裂纹长度的应用[J]. 航空材料学报,2006,26(3):359-360.
【2】JOHNSON H H. Calibrating the electric potential method for studying slow crack growth[J]. Materials Research & Standards,1965,5(9):442-445.
【3】SCHWALBE K H,HELLMANN D. Application of the electrical potential method to crack length measurements using Johnson’s formula[J]. American Society for Testing and Materials,1981,9(3):218-221.
【4】ASTM E647-1995Standard test method for measurement of fatigue crack growth rates[S].
【5】王亮,丁传富. 高温下直流电位法测量裂纹长度的应用[J]. 航空材料学报,2006,26(3):359-360.
相关信息
