ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2008, Vol. 29 ›› Issue (4): 13-15.

• 试验研究 • 上一篇    下一篇

Inconel 690镍基合金平衡相的热力学计算和实验分析

丰涵,宋志刚, 郑文杰,陈斌,季祥民,郭志鹏   

  1. 钢铁研究总院结构材料研究所,北京100081
  • 收稿日期:2008-01-22 出版日期:2008-08-01 发布日期:2022-12-23
  • 作者简介:丰涵(1983-),男,硕士研究生,北京科技大学毕业,不锈钢及耐蚀合金研究。
  • 基金资助:
    国家863基金项目资助(2006AA03Z525)

Thermodynamic Calculation and Experimental Analysis on Equilibrium Phases in Nickel Base Alloy Inconel 690

Feng Han, Song Zhigang, Zheng Wenjie, Chen Bin, Ji Xiangmin , Guo Zhipeng   

  1. Institute fbr Structural Materials, Central Iron and Steel Research Institute, Beijing 10081
  • Received:2008-01-22 Published:2008-08-01 Online:2022-12-23

摘要: 采用Thermo-Calc软件研究了经1 t真空感应炉+电渣重熔工艺冶炼的典型Inconel 690镍基合金(%:0.015C、29.42Cr、9.10Fe、0.26Ti、0.16Al)的平衡相析出规律,以及合金成分对M23C6相析出行为的影响。通过扫描电镜、透射电镜、选区电子衍射和X-射线能谱法对固溶和敏化处理的Inconel 690合金的组织进行了实验分析。结果表明,Inconel 690镍基合金平衡态析出相主要为M23C6和M(CN);当固溶温度≥1000℃时,M23C6完全溶解。计算结果指出,合金中碳含量对M23C6析出量的影响最大。

关键词: Inconel 690镍基合金, 热力学计算, 析岀相, M23C6

Abstract: The rules of equilibrium phases precipitation in typical nickel base alloy Inconel 690 (0. 015C, 29. 42Cr, 9. 10Fe, 0. 26Ti ,0. 16A1) melted by Its vacuum induction furnace + ESR process and the effect of alloy chemical composition on M23 C6 phase precipitation behavior has been studied by Thermo-Calc software. The structure of solid solution and sensitizing treated alloy Inconel 690 was tested and analyzed by SEM, TEM, SADP and EDS. Results showed that the main equilibrium precipitates in alloy Inconel 690 were M23C6 and); as solid solution temperature was 000 t, the M23 C6 dissolved completely. Calculated results indicated that the effect of carbon content in alloy on precipitation amount of M23 C6 was greater than that of other elements in alloy.

Key words:  , Alloy Inconel 690, Thermodynamic Calculation, Precipitated Phases, M23 C6