当载荷进一步增大后,裂纹源会进一步扩展到基体中,进而引发失效。通过原为拉伸的方法观察裂纹源扩展到集体后,裂纹的扩展演变过程,分析氧对裂纹演变的影响规律。
When the load further increases, the crack source will further expand into the matrix, thereby triggering failure. The propagation and evolution process of the crack after the crack source extends to the collective was observed by the original stretching method, and the influence law of oxygen on the crack evolution was analyzed.