粘结剂相含量对WC-AlCoCrFeNiTi0.2高熵硬质合金组织和力学性能的影响

Yuxin Wen, Mingchen Zhang, Yong Zhang
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引用次数: 1

摘要

研究了以alcocrfeni0.2和WC分别为粘结相和硬相的火花等离子烧结法制备WC- g201高熵硬质合金的性能。将AlCoCrFeNiTi0.2粉末与WC粉末分别按5:95、10:90和15:85的质量比混合,在1300℃下经SPS加热5min。结果表明:结合剂相对WC具有良好的润湿性,随着结合剂相含量的增加,合金硬度逐渐降低,断裂韧性先增大后减小,最大值为7.88 MPa m1/2;据估计,粘结剂含量在5wt% ~ 10wt%之间时,硬质合金的综合力学性能最好。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The effect of binder phase content on WC-AlCoCrFeNiTi0.2 high entropy cemented carbides microstructure and mechanical properties
This work aims to explore WC-G201 high entropy cemented carbides properties fabricated by spark plasma sintering with AlCoCrFeNiTi0.2 and WC as binder phase and hard phase respectively. AlCoCrFeNiTi0.2 powder and WC powder were mixed at the mass ratio of 5: 95, 10: 90 and 15: 85 respectively, and then via SPS at 1300℃ for 5min. The results show that the binder phase has good wettability to WC, and with the increase of binder phase content, the hardness of the alloy decreases gradually, fracture toughness increases first and then decreases, the maximum value is 7.88 MPa m1/2. It is estimated that the comprehensive mechanical property of cemented carbides is the best when the binder content is between 5wt% and 10wt%.
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