+高级检索
镍基高温合金GH141平衡析出相的热力学计算分析
DOI:
作者:
作者单位:

北京科技大学 材料科学与工程学院,北京科技大学 材料科学与工程学院,国家国防科技工业局 协作配套中心,北京科技大学 材料科学与工程学院,北京科技大学 材料科学与工程学院,钢铁研究总院 高温材料研究所,北京科技大学

作者简介:

通讯作者:

中图分类号:

基金项目:

国家自然科学基金项目(面上项目,重点项目,重大项目)


Thermodynamic Calculation of Equilibrium Precipitation Phases in GH141 Ni-based Superalloy
Author:
Affiliation:

University of Science and technology Beijing, School of Material Science and Engineering,University of Science and technology Beijing, School of Material Science and Engineering,State Administration of Science, Technology and Industry for National Defence, Coordination Center,University of Science and technology Beijing, School of Material Science and Engineering,University of Science and technology Beijing, School of Material Science and Engineering,Central Iron and Steel Research Institute, High Temperature Materials Institute,University of Science and Technology Beijing

Fund Project:

  • 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:

    应用Thermo-Calc热力学计算软件,对GH141合金的平衡析出相和非平衡凝固过程进行了模拟计算。结果表明:GH141合金的平衡析出相有γ、γ''、σ、μ和碳化物(MC、M6C、M23C6);合金凝固过程中Mo、Ti元素正偏析比较严重,这会降低合金的初熔点;Al、Ti含量对γ''相的开始析出温度和最大析出量有很大影响;C是碳化物最大析出量的控制元素,且MC、M6C、M23C6碳化物的主要富集元素分别是Ti、Mo、Cr。研究结果为合金的成分设计和热处理提供一定的理论依据。

    Abstract:

    The equilibrium precipitation phases and the process of non-equilibrium solidification for GH141 Ni-based superalloy were studied by Thermo-Calc software. The main precipitation phases include γ、γ''、σ、μ and carbides (MC,M6C and M23C6). Significant positive segregation of Mo and Ti may occur during solidification based on the calculation, which would decrease the initial melting points of GH141 Ni-based superalloy. The contents of Al and Ti can strongly influence the solvus temperature and the maximum mass fraction of γ'' phase. C is the main control element about the maximum mass fraction of carbides (MC, M6C and M23C6) and the enriched elements of MC, M6C and M23C6 are Ti, Mo and Cr respectively. Research results can provide theoretical basis for composition design and heat treatment.

    参考文献
    相似文献
    引证文献
引用本文

徐敏,杨武强,张斌,张麦仓,孟晔,胥国华,郑磊.镍基高温合金GH141平衡析出相的热力学计算分析[J].稀有金属材料与工程,2016,45(11):2925~2931.[Xu Min, Yang Wuqiang, Zhang Bin, Zhang Maicang, Meng Ye, Xu Guohua, Zheng Lei. Thermodynamic Calculation of Equilibrium Precipitation Phases in GH141 Ni-based Superalloy[J]. Rare Metal Materials and Engineering,2016,45(11):2925~2931.]
DOI:[doi]

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:2014-08-26
  • 最后修改日期:2014-10-09
  • 录用日期:2015-08-11
  • 在线发布日期: 2016-12-08
  • 出版日期: