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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In the present study, tensile and repeated impact as well as rotated-bending fatigue tests were carried out.

本研究进行了渗硼试样的拉伸、多次冲击以及旋转弯曲疲劳试验，并与未渗硼试样进行比较。

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PEI 5% in the content, the composite material has better mechanical properties, bending strength increase by 28.0%, impact strength 26.1%.

在PEI含量5%左右时，复合材料的综合力学性能较佳，弯曲强度提高了28.0%，冲击强度提高了26.1%。

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