摘要
采用金相观察、扫描电镜、能谱分析、硬度测试及室温拉伸等手段研究了铸造过程中界面添加剂的加入对液-液双金属复合材料的组织及力学性能的影响。结果表明,界面添加剂的加入能够有效降低双金属复合材料界面及其附近两侧钢铁材料中的氧化物缺陷,使双金属界面冶金扩散层更宽,且成分及硬度过渡更为缓和,双金属复合材料的界面强度由320 MPa上升到高于530 MPa。界面强度上升与界面添加剂对双金属界面的洁净化和还原作用有关。
The effects of the addition of interfacial additives on the microstructure and mechanical properties of liquid-liquid bimetallic composites were studied by means of metallographic observation, scanning electron microscopy,energy spectrum analysis, hardness testing and room temperature stretching. The results show that, the addition of interfacial additives can effectively reduce the oxide defects in the interface of bimetallic composites and the iron and steel materials near them which make the metallurgical diffusion layer of bimetallic interface wider and ease the transition of composition and hardness. The tensile strength of the interface of bimetallic composites increases from 320 MPa to more than 530 MPa. The increase of interfacial strength is related to the cleaning and reduction of bimetallic interface by interfacial additives.
作者
郑志斌
李远扬
Oleksandr Shatrava
龙骏
冯波
王娟
陈维平
ZHENG Zhibin;LI Yuanyang;OLEKSANDR Shatrava;LONG Jun;FENG Bo;WANG Juan;CHEN Weiping(Guangdong Provincial Key Laboratory for Technology and Application of Metal Toughening,Guangzhou Key Laboratory of Advanced Metal Structural Materials,Guandong Institute of Materials and Processing,Guangzhou 510650,China;Guangdong Procince Engineering Laboratory for Steel Matrix Composites,Guangzhou 510650,China;School of Mechanical and Au tomotive Engineering,South China University of Technology,Guangzhou 510641,China;Physico-technological Institute of Meals and Alloys,National Academy of Sciences of Ukraine,Kyiv 03142,Ukraine)
出处
《热加工工艺》
北大核心
2022年第6期88-92,共5页
Hot Working Technology
基金
广东省科学院建设国内一流研究机构行动专项项目(2019GDASYL-0502009)
广州市科技计划项目(201807010085,201906040007)
广东省科技计划项目(2018A050506055)。
关键词
双金属复合材料
界面添加剂
界面
高铬铸铁
低合金钢
bimetal composites
interfacial additive
interface
high-chromium iron
low alloy steel
作者简介
郑志斌(1990-),男,江西抚州人,高级工程师,博士,主要从事耐磨材料开发,电话:020-61086187,E-mail:zbzheng712003@163.com;通讯作者:龙骏(1990-),男,湖南娄底人,工程师,硕士,主要从事耐磨材料开发,电话:020-61086187,E-mail:longjun0929@163.com。
