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Performance of Cemented Carbides in Cyclic Loading Wear Conditions

机译:循环载荷磨损条件下硬质合金的性能

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摘要

The present study describes the wear and mechanical behaviour of some carbide composites (TiC-base cermets and WC-base hardmetals) in cyclic loading applications (blanking of sheet metal). Adhesive wear as well as fatigue endurance were tested, followed by XRD measurements. The results show that the blanking performance of a carbide composite is dependent on its level of resistance to adhesion wear and fatigue sensitivity. XRD measurement revealed that fatigue damage is preceded by plastic strain in both the ductile binder and the brittle carbide phase.
机译:本研究描述了某些碳化物复合材料(TiC基金属陶瓷和WC基硬质合金)在循环载荷应用(金属板坯料)中的磨损和力学行为。测试了胶粘剂的磨损以及疲劳强度,然后进行了XRD测量。结果表明,碳化物复合材料的冲裁性能取决于其抗粘附磨损性和疲劳敏感性的水平。 XRD测量表明,在塑性结合剂和脆性碳化物相中,塑性损伤是疲劳破坏的先兆。

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