Effect of Ti and/or Nb on Structure and Mechanical Properties of High Temperature Alloy 25Cr37Ni0.6Nb

陈道凤; 郑宏光; 马天军; 单爱党

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Effect of Ti and/or Nb on Structure and Mechanical Properties of High Temperature Alloy 25Cr37Ni0.6Nb

更新时间：2026-01-21

- Effect of Ti and/or Nb on Structure and Mechanical Properties of High Temperature Alloy 25Cr37Ni0.6Nb
- Special Steel Vol. 35, Issue 2, Pages: 47-50(2014)
- 作者机构：
  
  1. 上海交通大学材料科学与工程学院,上海,200240
  2. 宝山钢铁股份有限公司研究院,上海,201900
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：17 September 2013，
  
  Online First：14 September 2022，
  
  Published：14 September 2014
- 稿件说明：
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陈道凤, 郑宏光, 马天军, et al. Effect of Ti and/or Nb on Structure and Mechanical Properties of High Temperature Alloy 25Cr37Ni0.6Nb[J]. Special Steel, 2014, 35(2): 47-50.
DOI：

陈道凤, 郑宏光, 马天军, et al. Effect of Ti and/or Nb on Structure and Mechanical Properties of High Temperature Alloy 25Cr37Ni0.6Nb[J]. Special Steel, 2014, 35(2): 47-50. DOI：

摘要

研究了150 kg真空感应炉冶炼并轧成30 mm板的0.05C-25Cr-37Ni-0.6Nb(0.6Nb)

0.05C-25Cr-37Ni-0.6Nb-0.6Ti(0.6Nb-0.6Ti)和0.05C-25Cr-37Ni-1.8Nb(1.8Nb)3组合金1160~1220℃ 1 h空冷固溶处理的组织和性能。结果表明

与0.6Nb合金相比加Ti的(0.6Nb-0.6Ti)合金的晶粒明显粗化

析出相主要为微米级Ti(CN)

室温强度降低

760℃蠕变性能降低;增加Nb含量的1.8Nb合金的晶粒细化

析出相主要为纳米级Nb(CN)

室温强度和蠕变性能没有明显变化。

Abstract

The structure and properties of three alloys 0.05C-25Cr-37Ni-0.6Nb(0.6Nb)

0.05C-25Cr-37Ni-0.6Nb-0.6Ti(0.6Nb-0.6Ti) and 0.05C-25Cr-37Ni-l.8Nb( 1.8Nb) melted by 150 kg vacuum induction furnace

rolled to 30 mm plate and solid-solution-treated at 1160-1220 ℃ for 1 h

air cooling have been studied. Results show that as compared with 0.6Nb alloy

the grains in 0.6Nb-0.6Ti alloy added Ti obviously coarsen

the main precipitates are micrometer-scale Ti( CN)

the ambient strength and creep behavior at 760 ℃ of 0.6Nb-0.6Ti alloy decrease ； the 1.8Nb alloy got a raise in Nb content the grains fine

the main precipitates are nanometer-scale Nb(CN)

the ambient strength and creep behavior are not obviously changes.

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