+高级检索
MgCO3、CO2、CO对AM60B合金晶粒细化的影响
作者:
作者单位:

重庆大学 材料科学与工程学院

作者简介:

通讯作者:

中图分类号:

基金项目:

国家重点研发计划项目(2016YFB0301100)


Effects of MgCO3 and Gaseous CO2 and CO on Grain Refinement in AM60B Alloy
Author:
Affiliation:

College of Material Science and Engineering,Chongqing University

Fund Project:

National Key Research and Development Program of China

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    在加入等摩尔量碳的基础上,利用MgCO3、CO2和CO对760℃的AM60B合金进行了变质处理。结果表明: MgCO3、CO2和CO分别使AM60B的平均晶粒尺寸从213 μm减小到了116 μm、90 μm和106 μm;经MgCO3,CO2,CO变质处理后,AM60B合金的维氏硬度、抗拉强度、屈服强度和伸长率均有很大提升,CO2变质后的AM60B合金力学性能最好,CO次之,MgCO3最差。基于SEM、EDS以及XRD分析数据,MgCO3、CO2及CO气体具有相同的变质机理,即主要是因为加入这两种含碳变质剂后,熔体中的Al和C结合生成了Al4C3异质形核核心。

    Abstract:

    Based on the equal addition amount of carbon, the effects of MgCO3, CO2 and CO on grain refinement in AM60B alloy were investigated. The results indicated that the average grain size of AM60B alloy reduced from 213μm to 116μm, 90μm and 106μm respectively due to the addition of MgCO3, CO2 and CO. Also, the Vickers hardness, tensile strength, yield strength and elongation of AM60B alloy inoculated by MgCO3, CO2 and CO were all improved in some degree, moreover, AM60B alloy treated by CO2 have the best mechanical properties, followed by CO and MgCO3 in sequence. In addition, supported by SEM, EDS and XRD, the observed Al4C3 particles as a result of the addition of MgCO3, CO2 and CO should be responsible for the grain refinement of treated AM60B alloy.

    参考文献
    相似文献
    引证文献
引用本文

刘艳,龙思远,袁颖,刘青,游国强. MgCO3、CO2、CO对AM60B合金晶粒细化的影响[J].稀有金属材料与工程,2019,48(1):190~196.[Liu Yan, Long Siyuan, Yuan Ying, Liu Qing, You Guoqiang. Effects of MgCO3 and Gaseous CO2 and CO on Grain Refinement in AM60B Alloy[J]. Rare Metal Materials and Engineering,2019,48(1):190~196.]
DOI:10.12442/j. issn.1002-185X.20170447

复制
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2017-05-26
  • 最后修改日期:2017-11-28
  • 录用日期:2017-12-18
  • 在线发布日期: 2019-02-18
  • 出版日期: