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应用“开裂”准则的插销试验中,测定开裂点是试验中的一个重要方面。本文介绍了用声发射技术测定开裂点,及用氧化着色断口法和金相解剖法验证开裂点的初步试验。
In the plug test using the “cracking” criterion, determining the cracking point is an important aspect of the test. In this paper, the initial test of cracking point by acoustic emission technique and verification of cracking point by oxidative coloring fracture method and metallographic dissection method are introduced.