双液双金属复合锤头的界面组织及磨损性能研究  

Study on Interface Microstructure and Wear Performance of Double-liquid Bimetallic Composite Hammer Head

作　　者：缪燕平[1] 蔡冬根[1] 章庆 MIAO Yanping;CAI Donggen;ZHANG Qing(Department of Mechanical Engineering,Jiangxi Technical College of Manufacturing,Nanchang 330098,China;Fangda Special Steel Technology Co.,Ltd.,Nanchang 330012,China)

机构地区：[1]江西制造职业技术学院机械工程学院,江西南昌330098 [2]方大特钢科技股份有限公司,江西南昌330012

出　　处：《热加工工艺》2022年第24期45-48,共4页Hot Working Technology

基　　金：江西省主要学科学术和技术带头人资助计划项目(20182BCB22020);江西省教育厅科学技术研究项目(GJJ151486);江西省高等学校教学改革研究项目(JXJG-19-74-1);南昌市模具表面处理与加工制造技术重点实验室项目(2021-NCZDSY-003)。

摘　　要：采用消失模液-液复合铸造工艺制造高铬合金+中碳钢双液双金属复合锤头,对复合锤头的冶金结合界面及其铸态组织进行研究。结果表明,双金属的融合过渡界面呈不规整的线条状、组织致密,形成了稳定的冶金结合区。磨损试验表明,在摩擦时间为0.5 h、摩擦速度为8 mm·s^(-1)、载荷为30及90 N条件下,复合锤头表面的磨损机理主要为磨粒磨损和氧化磨损等轻微磨损。The double liquid bimetallic composite hammers were manufactured by liquid-liquid composite casting process in EPC. The metallurgical bonding interface and cast microstructure of the composite hammers were studied. The results show that the fusion transition interface of bimetal is irregular and compact, forming a stable metallurgical bonding zone. The wear test show that the wear mechanism of the composite hammer surface is abrasive wear and oxidation slight wear under the conditions of friction time of 0.5 h, friction speed of 8 mm·s^(-1)and load of 30 or 90 N.

关 键 词：双液双金属 界面 微观组织 磨损机制 

分 类 号：TB331[一般工业技术—材料科学与工程]