The impact fatigue property of cemented carbide was studied by impact bending test in this paper.

采用冲击弯曲试验研究了硬质合金的冲击疲劳性能。

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The results of mechanical test show that is bending strength, toughness against impact and void ratios can be improved after the rich iron matris is added with rare earth.

力学性能测试结果表明：添加稀土的富铁胎体及其金刚石复合材料的抗弯强度、 冲击韧性和孔隙度均有明显的改善。

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For exposing the the dynamic response characteristic of CFST under lateral impact, the same samples of the bending static test and the same air-filled steel component impact test were completed.

为揭示钢管混凝土构件侧向冲击动力响应的特性，完成了同种试件的单点侧向弯曲静载试验和相同壁厚空钢管构件侧向冲击实验。

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