首页|联合工艺制备钢表面高熵合金-陶瓷涂层复合材料及其力学性能

联合工艺制备钢表面高熵合金-陶瓷涂层复合材料及其力学性能

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
提出了一种制备低碳钢表面AlCrFeNiTix高熵合金-TiN陶瓷涂层复合材料的联合工艺(熔盐电脱氧+真空热压烧结),其中氮化物来自石墨模具和高熵合金粉末之间的BN隔离剂.探究了Ti含量对材料显微组织、极限抗拉伸强度、硬度和耐磨性能的影响,并对其结合机理进行了探究.结果表明,该复合材料具有优异的硬度和耐磨性能.随着Ti含量的增加,涂层复合材料的硬度显著提高.极高的耐磨性能是由于TiN的极高熔点和高热硬度能够有效防止磨损表面的氧化变形.
Preparation of High-Entropy Alloy-Ceramic Coating Compos-ites on Steel Surfaces by Combined Process and Their Mechanical Properties
A combined process of molten salt electro-deoxidation and vacuum hot-pressing sintering was proposed to prepare AlCrFeNiTix high-entropy alloy(HEA)-TiN ceramic coating composites on low-carbon steel surfaces,where nitrides were introduced from BN isolater between graphite mold and HEA powders.The effect of Ti content on the microstructure,ultimate tensile strength,hardness,and wear resistance of the composites was investigated,and the bonding mechanism was elucidated.Results demonstrate that the composites have excellent hardness and wear resistance.The hardness of composites is significantly increased with the increase in Ti content.The extremely high wear resistance is attributed to the extremely high melting point and high thermal hardness of TiN,which can effectively prevent oxidation deformation of the worn surface.

high-entropy alloyceramic coating compositesmolten salt electro-deoxidizationvacuum hot-pressing sinteringmechanical properties

李慧、陈庚、张胜、梁精龙、霍东兴、杨宇

展开 >

华北理工大学冶金与能源学院现代冶金技术教育部重点实验室,河北唐山 063210

华北理工大学机械工程学院,河北唐山 063210

华北理工大学综合测试分析中心,河北唐山 063210

高熵合金 陶瓷涂层 熔盐电脱氧 真空热压烧结 力学性能

National Natural Science Foundation of ChinaYouth Scholars Promotion Plan of North China University of Science and Technology

52174315QNTJ202304

2024

10.12442/j.issn.1002-185X.E20240311

稀有金属材料与工程
中国有色金属学会,中国材料研究学会,西北有色金属研究院

稀有金属材料与工程

CSTPCD北大核心
影响因子：0.634
ISSN：1002-185X
年,卷(期)：2024.53(10)