Fabrication of chromium carbide cermets by electric resistance sintering process: Processing, microstructure and mechanical properties

被引：11
作者：
Lagos, M. A. [1 ]
Agote, I. [1 ]
Leizaola, I. [1 ]
Lopez, D. [2 ]
Calero, J. A. [2 ]
机构：
[1] TECNALIA, Basque Res & Technol Alliance BRTA, Mikeletegi Pasealekua 2, Donostia San Sebastian 20009, Spain
[2] Aleac Met Sinterizados AMES, Ctra Nac 340 Km 1242, Barcelona 08620, Spain
来源：
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS | 2021年 / 95卷
基金：
欧盟地平线“2020”;
关键词：
SPRAYED WC-(W; CR)(2)C-NI; PHASE; CONSOLIDATION; PERFORMANCE; CR3C2-NICR; COATINGS; BEHAVIOR; EROSION;
D O I：
10.1016/j.ijrmhm.2020.105417
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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-20Cr(3)C(2)-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.
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页数：8
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