Precipitate Behavior of Second Phase and Structure of Annealed 1.5 mm Cold Rolling Sheet of Nb-Ti Microalloy High Strength Steel

刘浩; 陈晓; 李平和; 郑红; 吴青松; 刘清友

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Precipitate Behavior of Second Phase and Structure of Annealed 1.5 mm Cold Rolling Sheet of Nb-Ti Microalloy High Strength Steel

更新时间：2026-01-21

- Precipitate Behavior of Second Phase and Structure of Annealed 1.5 mm Cold Rolling Sheet of Nb-Ti Microalloy High Strength Steel
- Special Steel Vol. 27, Issue 3, Pages: 26-28(2006)
- 作者机构：
  
  1. 武汉科技大学材料与冶金学院,武汉,430081
  2. 武汉钢铁公司技术中心,武汉,430080
  3. 钢铁研究总院,北京,100081
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：04 January 2006，
  
  Online First：06 June 17，
  
  Published：10 March 2006
- 稿件说明：
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刘浩, 陈晓, 李平和, et al. Precipitate Behavior of Second Phase and Structure of Annealed 1.5 mm Cold Rolling Sheet of Nb-Ti Microalloy High Strength Steel[J]. Special Steel, 2006, 27(3): 26-28.
DOI：

刘浩, 陈晓, 李平和, et al. Precipitate Behavior of Second Phase and Structure of Annealed 1.5 mm Cold Rolling Sheet of Nb-Ti Microalloy High Strength Steel[J]. Special Steel, 2006, 27(3): 26-28. DOI：

摘要

用透射电镜实验研究了(%):0.08C-1.0Mn-Nb+Ti<0.10微合金高强度钢经53%冷变形1.5 mm板650℃和680℃退火的组织和第二相析出行为。结果表明

试验钢中的第二相为(Ti

Nb)(C

N)复合析出相

第二相粒子尺寸一般为20~30 nm

随退火温度提高

第二相粒子的数量增加。由于退火过程第二相析出强化和第二相粒子抑制晶粒长大

使钢中晶粒细小

该钢650℃退火组织具有较高强度(屈服强度≥480 MPa)。

Abstract

The precipitate behavior of second phase and structure of 0.08C- 1.0Mn-Nb+Ti<0.10 microalloy high strength steel 1.5 mm sheet deformed by 53% annealed at 650 ℃ and 680 ℃ has been tested and studied by transmission electron microscope. the results showed that the second phase in test steel was(Ti

Nb)(C

N)compound precipitate phase

generally the size of second phase particles was 20~30 nm

and with increasing annealing temperature the amount of second phase increased. The higher strength(yield strength ≥480MPa at 650 ℃)is due to second phase precipitate strength and inhabiting gain growth to form fine grain.

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