International Journal of Refractory Metals & Hard Materials ( IF 4.2 ) Pub Date : 2020-10-29 , DOI: 10.1016/j.ijrmhm.2020.105417 M.A. Lagos , I. Agote , I. Leizaola , D. Lopez , J.A. Calero
Chromium carbide-based cermets are suitable for use in abrasive and corrosive environments. This work presents the fabrication of chromium carbide-based cermets by a very fast sintering process: Electric Resistance Sintering. The thermal cycle duration was less than 1 s and without protective atmosphere.
Two different compositions were studied: Cr3C2-25NiCr (wt%) and WC-20Cr3C2-7Ni (wt%). Microstructure and crystallographic phases of the initial powders and sintered materials are presented. In addition, hardness and toughness were characterized and compared to conventional materials.
One important issue of ERS is the size and homogeneity of the pieces. This work presents the also the fabrication of a mining wear piece and some aspects about scaling up.
中文翻译：
电阻烧结法制备碳化铬金属陶瓷的工艺，显微组织和力学性能
碳化铬基金属陶瓷适用于磨蚀性和腐蚀性环境。这项工作介绍了通过非常快速的烧结工艺制造碳化铬基金属陶瓷：电阻烧结。热循环持续时间少于1秒，并且没有保护性气氛。
研究了两种不同的组成：Cr 3 C 2 -25NiCr（wt％）和WC-20Cr 3 C 2 -7Ni（wt％）。介绍了初始粉末和烧结材料的微观结构和结晶相。此外，对硬度和韧性进行了表征，并与常规材料进行了比较。
ERS的一个重要问题是碎片的大小和同质性。这项工作还介绍了采矿耐磨件的制造以及有关按比例放大的一些方面。
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