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

• 作 者: 陈绍春 林新强 朱康正 卢月美 叶荣华 林洋 林小瑛
• 机 构: 福州大学机械工程及自动化学院,福建乾达重型机械有限公司,
• 出 处: 过程工程学报
• 发表日期: 2017年01期
• 关键词: 奥氏体组织 耐磨性能 变质处理 马氏体相变 热性 磨损率 水韧处理 碳化物形态 钢成分 加工硬化

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.

In view of the current poor thermal conductivity of austenitic manganese steel, the heat is not easy to be derived during processing, the workpiece is susceptible to thermal deformation resulting in the processing accuracy is not guaranteed and the cutting speed can not be raised and so on. The effects of alloying elements such as Cr, Mo and rare earth on austenite The results show that the content of Cr is about 1% (?) And the content of Mo is about 2% (?), And the addition of 0.15% (?) Rare earth can make austenite The thermal conductivity of manganese steel increased by 19.6% and the wear rate decreased by 54.5% compared with the traditional high manganese steel, and the grain size was increased from 3 to 5.