利用等离子体热处理方法在Zr金属表面直接制备Zr3O-ZrC/石墨烯表面强化层  

ZrO-ZrC/graphene strengthened layer directly prepared on the surface of metal Zr by plasma heat treatment

作　　者：成亦飞 罗飞 刘大博 周海涛 田野 罗炳威 CHENG Yifei;LUO Fei;LIU Dabo;ZHOU Haitao;TIAN Ye;LUO Bingwei(Department of Steel and Rare-noble Metals,AECC Beijing Institute of Aeronautical Materials,Beijing 100095,China)

机构地区：[1]中国航发北京航空材料研究院,钢与稀贵金属研究所,北京100095

出　　处：《航空材料学报》2020年第4期19-24,共6页Journal of Aeronautical Materials

基　　金：国家自然科学基金项目(51602299,51602300,51302255)。

摘　　要：采用等离子体热处理方法,在Zr金属表面直接制备Zr3O-ZrC/石墨烯表面强化层。利用X-射线衍射仪(XRD)、扫描电镜(SEM)、拉曼光谱(Raman)对Zr/Zr3O-ZrC/石墨烯样品进行结构表征和成分的表征。利用硬度计和纳米压痕对Zr/Zr3O-ZrC/石墨烯样品进行表面硬度的表征。研究结果表明:表面的复合增强层均匀的分布在Zr金属表面,纯Zr金属和Zr/Zr3O-ZrC/石墨烯表面的硬度值分别为195HV和639HV,表面硬度在热处理后提高3.2倍。纳米压痕结果表明,Zr3O-ZrC表面增强层是引起表面硬度提高的主要原因。Zr3O-ZrC/graphene composite layer was directly in-situ grown on the surface of Zr foil by plasma heat treatment method. The microstructure and component of the as-prepared sample were systematically characterized by X-ray diffraction(XRD),Raman spectrum and scanning electron microscopy(SEM). The surface hardness was both characterized by micro hardness tester and nanoindentor. The results show that the composite layer was uniformly distributed on the surface of Zr foil. The surface hardness values of pure Zr foil and Zr/Zr3O-ZrC/graphene composite were 195 HV and 639 HV, respectively. The surface hardness of the TiC/graphene layer can be signi?cantly increased 3.2 times as that of the pure Zr foil surface. Nanoindentor results showed the signi?cantly improved surface hardness could be attributed to the Zr3O-ZrC layers. This study provides a particular heat treatment process for significant reinforcement of Zr and its alloys, and showing its great potential application for the future.

关 键 词：Zr金属 表面增强 等离子体 ZRC 石墨烯 

分 类 号：O472[理学—半导体物理]