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首页> 外文期刊>International Journal of Refractory Metals & Hard Materials >Erosion behavior of Ti(C,N)-based cermet in solid-liquid two phase flow
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Erosion behavior of Ti(C,N)-based cermet in solid-liquid two phase flow

机译：Ti（C，N）基金属陶瓷在固液两相流中的冲蚀行为

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摘要

Erosion wear test of Ti(C,N)-Mo_2C-Co cermet in artificial seawater flow containing 5 wt.% SiO_2 solid hard particles was conducted, and the erosion behavior as a function of erosion time was investigated. The results showed that the erosion wear started locally in the binder phases and craters of small size were formed. With the increase of erosion time, the scattered craters transformed to connected craters and both the number and size of craters increased. Longer erosion time resulted in the extension of erosion damage to the adherent hard particles, and fracture of the hard grains and falling off of hard particles can be seen due to the loss of the surrounding binder metal. Furthermore, microcracks formed in the hard phases of core/rim structure, which was attributed to the fatigue failure caused by the repetitive impact of erodent.
机译：进行了Ti（C，N）-Mo_2C-Co金属陶瓷在含5％（重量）SiO_2固体硬质颗粒的人工海水中的冲蚀磨损试验，研究了随冲蚀时间变化的冲蚀行为。结果表明，腐蚀磨损在粘结相中局部开始，形成了小尺寸的弹坑。随着侵蚀时间的增加，分散的陨石坑转变为连通的陨石坑，陨石坑的数量和大小均增加。较长的腐蚀时间会导致腐蚀损害扩展到附着的硬颗粒上，并且由于周围粘合剂金属的损失，可以看到硬颗粒的破裂和硬颗粒的脱落。此外，在芯/轮辋结构的硬质相中形成了微裂纹，这归因于由腐蚀的重复冲击引起的疲劳破坏。

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