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首页> 外文期刊>Journal of Materials Engineering and Performance >Microstructure, Mechanical and Wear Behaviors of Hot-Pressed Copper-Nickel-Based Materials for Diamond Cutting Tools
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Microstructure, Mechanical and Wear Behaviors of Hot-Pressed Copper-Nickel-Based Materials for Diamond Cutting Tools

机译：用于金刚石切割工具的热压铜镍材料的微观结构，机械和磨损行为

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摘要

The current trend to replace cobalt in diamond cutting tools (DCT) for stone cutting has motivated the study of alternative materials for this end. The present study characterizes several copper-nickel-based materials (Cu-Ni; Cu-Ni-10Sn, Cu-Ni-15Sn, Cu-Ni-Sn-2WC and Cu-Ni-Sn-10WC) for using as matrix material for diamond cutting tools for stone. Copper-nickel-based materials were produced by hot pressing, at a temperature of 850 A degrees C during 15 min and under an applied pressure of 50 MPa. The mechanical properties were evaluated though the shear strength and hardness values. The microstructures and fracture surfaces were analyzed by SEM. The wear behavior of all specimens was assessed using a reciprocating ball-on-plate tribometer. The hot pressing produced compacts with good densification. Sn and WC promoted enhanced mechanical properties and wear performance to Cu-Ni alloys. Cu-Ni-10Sn and Cu-Ni-10Sn-2WC displayed the best compromise between mechanical and wear performance.
机译：当前替代金刚石切割工具（DCT）中钴的趋势为石材切割而导致了对此目的的替代材料的研究。 本研究表征了几种基于铜 - 镍基材料（Cu-Ni; Cu-Ni-10Sn，Cu-Ni-15Sn，Cu-Ni-10Sn，Cu-Ni-Sn-10WC和Cu-Ni-Sn-10WC），用于使用作为基质材料 石头的金刚石切削工具。 通过热压，在15分钟内并在50MPa的施加压力下在850℃的温度下产生铜基 - 镍基材料。 尽管剪切强度和硬度值评估了机械性能。 通过SEM分析微观结构和断裂表面。 使用往复式的球形摩擦计评估所有样本的磨损行为。 热压生产的紧凑型，致密化。 SN和WC促进了Cu-Ni合金的增强的机械性能和磨损性能。 Cu-Ni-10Sn和Cu-Ni-10Sn-2WC在机械和磨损性能之间显示出最佳折衷。

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