合金化和稀土变质处理对奥氏体中锰钢热导率及耐磨性的影响  

Effect of Alloying and Rare Earth Modification on Thermal Conductivity and Wear Resistance of Austenitic Medium Manganese Steel

作　　者：陈绍春[1] 林新强 朱康正[1] 卢月美[1] 叶荣华 林洋[1] 林小瑛[1] CHEN Shao-chun LIN Xin-qiang ZHU Kang-zheng LU Yue-mei YE Rong-hua LIN Yang LIN Xiao-ying(School of Mechanical Engineering ＆ Automation, Fuzhou University, Fuzhou, Fujian 350116, China Fujian Qiangda Heavy Machinery Company, Fuzhou, Fujian 350100, China)

机构地区：[1]福州大学机械工程及自动化学院,福建福州350116 [2]福建乾达重型机械有限公司,福建福州350100

出　　处：《过程工程学报》2017年第1期144-150,共7页The Chinese Journal of Process Engineering

基　　金：福建省自然科学基金重点资助项目(编号:2014H0023)

摘　　要：针对目前奥氏体中锰钢导热性差、加工时热量不易导出、工件易受热变形而导致加工精度难以保证和切削速度不能提高等问题,研究了Cr,Mo及稀土等合金元素对奥氏体中锰钢热导率及耐磨性能的影响.结果表明,Cr含量约为1%(?)及Mo含量控制在2%(?)左右、并加入0.15%(?)稀土能使奥氏体中锰钢比传统高锰钢的热导率提高19.6%,磨损率降低54.5%,晶粒度由3级提升至5级.Aimed at the problems of the austenitic manganese steel, such as the thermal conductivity is poor, the heat is not easy to export and the workpiece is easy to heat deformation, which leads to the processing precision is difficult to guarantee, and the cutting speed cannot be improved, we study the effects of Cr, Mo and rare earth alloy elements on thermal conductivity and wear resistance of the austenitic manganese steel herein. The results showed that the thermal conductivity can be enhanced of 19.6%, the wearing rate is reduced by 54.5%, and crystal grain is improved from grade 3 to 5 comparing austenitic medium manganese steel to the traditional high manganese, when the Cr content is about 1%（ω）, the content of Mo is about 2%（ω）, and 0.15%（ω） of the rare earth is added.

关 键 词：奥氏体 锰钢 合金化 稀土 热导率 耐磨性能 

分 类 号：TG142.1[一般工业技术—材料科学与工程]