An interesting phenomenon that yielding was observed in the Ti matrix composites with above 4.10vol%TiC_p. To clarify the underlying nature, in-situ tensile test was performed, and results indicated that this was caused by cracking at the interface between the aggregated TiC_p and Ti matrix, which is quite different from the well-accepted viewpoint. Furthermore, fracture of stronger TiC_p prior to weaker TiB_w was also found during in-situ tensile test, and a fracture criterion was proposed from the viewpoint of load transfer.

中文翻译：

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粉末冶金（TiC _p + TiB _w）/ Ti复合材料中明显的屈服现象和选择性断裂行为

一个有趣的现象是，在TiC _p大于4.10vol％的Ti基复合材料中观察到屈服。为了弄清其基本性质，进行了原位拉伸试验，结果表明这是由于聚集的TiC _p和Ti基体之间的界面开裂引起的，这与公认的观点大不相同。此外，在原位拉伸试验中，还发现了较弱的TiB _w之前的较强TiC _p的断裂，并且从载荷传递的角度提出了断裂准则。