高温下直流电位法测量裂纹长度的应用

1.北京航空材料研究院,北京,100095

2.北京航空材料研究院,北京,100095

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

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.

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