高温下直流电位法测量裂纹长度的应用

王亮; 丁传富

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航空材料学报 ›› 2006, Vol. 26 ›› Issue (3) : 359-360.

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论文

高温下直流电位法测量裂纹长度的应用

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Application of DC Current Method for Crack Length Measurement in High Temperature

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摘要

介绍了直流电位法测量疲劳裂纹长度方法的基本原理、实现方法、及所需配置的仪器,并对有关影响因素作了分析。该测量系统主要用于在高温下测量各种材料在恒幅载荷下的疲劳裂纹扩展和门槛值试验中的疲劳裂纹长度,可以提高测量疲劳裂纹长度的自动化水平。

Abstract

A measurement method is described in this paper for crack length.Fatigue crack growths under constant amplify and crack length of threshold behavior base on this method in the high temperature.According to automation level of measurement crack length is improved.

导出引用

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

WANG Liang, DING Chuan-fu. Application of DC Current Method for Crack Length Measurement in High Temperature[J]. Journal of Aeronautical Materials, 2006, 26(3): 359-360

参考文献

COFFIN L F.Notch fatigue crack initiation studies in a high strength nickel base super alloy[J].Engineering Fracture Mechanics,1987,28 (5):485-503.
JOHNSON H H.Calibrating the electric potential method for studying slow crack growth[J].Materials Research Standards,1965,5(9):442-445.
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.