Effect of Al, Ti, Nb and Mo Content on γ′and η Precipitated Phase in a New Ni-25Cr-20Co Nickel Base Superalloy

郝文慧; 武敏; 罗刚; 王珏; 谢锡善

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Effect of Al, Ti, Nb and Mo Content on γ′and η Precipitated Phase in a New Ni-25Cr-20Co Nickel Base Superalloy

更新时间：2026-01-21

- Effect of Al, Ti, Nb and Mo Content on γ′and η Precipitated Phase in a New Ni-25Cr-20Co Nickel Base Superalloy
- Special Steel Vol. 34, Issue 2, Pages: 1-3(2013)
- 作者机构：
  
  1. 太原钢铁(集团)有限公司先进不锈钢材料国家重点实验室,太原,030003
  2. 北京科技大学,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：25 September 2012，
  
  Online First：30 September 2022，
  
  Published：30 September 2013
- 稿件说明：
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郝文慧, 武敏, 罗刚, et al. Effect of Al, Ti, Nb and Mo Content on γ′and η Precipitated Phase in a New Ni-25Cr-20Co Nickel Base Superalloy[J]. Special Steel, 2013, 34(2): 1-3.
DOI：

郝文慧, 武敏, 罗刚, et al. Effect of Al, Ti, Nb and Mo Content on γ′and η Precipitated Phase in a New Ni-25Cr-20Co Nickel Base Superalloy[J]. Special Steel, 2013, 34(2): 1-3. DOI：

摘要

利用热力学计算软件Thermo-Calc分析了新型Ni-25Cr-20Co镍基高温合金(/%:0.03C、25Cr、20Co、0.50Mo、1.38Al、1.38Ti、1.50Nb、余Ni)中可能的平衡析出相

得出该合金的平衡状态图和Al、Ti、Nb、Mo含量(分别为0.5%～2.5%)对γ′和η相析出行为的影响。结果表明

增加Al、Ti和Nb的含量可以提高γ′相的析出量

但Ti和Nb会促进η相的析出并扩大其析出温度范围

Co和Mo对两种析出相的影响较少。

Abstract

The possible equilibrium precipitated phases in a new Ni-25Cr-20Co nickel base superalloy (/% ： 0.03C

25Cr

20Co

0.50Mo

1.38Al

1.38Ti

1.50Nb

others Ni) are analyzed by software Thermo-Cale to get the equilibrium condition diagram of the superalloy and the effect of Al

Nb and Mo content ( respectively 0.5%-2.5% ) on precipitation behavior of γ′and η phase. Results show that with increasing Al

Ti and Nb content the precipitated amount of γ′ phase in the superalloy increases while the Ti an Nb can promote the precipitation of η phase and enlarge its precipitation temperature range. The Co and Mo have minor influence on both precipitated phases.

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