Precipitation Behavior of Rich Copper Phase in 1.18Cu High Purity Steel during Isothermal Aging

安治国; 任慧平; 刘宗昌; 王海燕

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Precipitation Behavior of Rich Copper Phase in 1.18Cu High Purity Steel during Isothermal Aging

更新时间：2026-01-21

- Precipitation Behavior of Rich Copper Phase in 1.18Cu High Purity Steel during Isothermal Aging
- Special Steel Vol. 27, Issue 2, Pages: 20-22(2006)
- 作者机构：
  
  内蒙古科技大学材料科学与工程学院,包头,014010
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：02 September 2005，
  
  Online First：27 February 2023，
  
  Published：27 February 2006
- 稿件说明：
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安治国, 任慧平, 刘宗昌, et al. Precipitation Behavior of Rich Copper Phase in 1.18Cu High Purity Steel during Isothermal Aging[J]. Special Steel, 2006, 27(2): 20-22.
DOI：

安治国, 任慧平, 刘宗昌, et al. Precipitation Behavior of Rich Copper Phase in 1.18Cu High Purity Steel during Isothermal Aging[J]. Special Steel, 2006, 27(2): 20-22. DOI：

摘要

用扫描电子显微镜(SEM)、高分辨电子显微镜(HREM)和HV50硬度计

试验研究了含铜高纯钢(%:0.014C

0.10Mn

0.05Si

1.18Cu

＜0.002S，0.006P) 650℃ 100 s～300 h等温时效时的组织和硬度。结果表明

650℃等温时效时富铜相优先在铁素体晶界析出

随等温时效时间增加

富铜相尺寸增大。650℃等温时效103s时

富铜过渡相与铁素体基体保持共格性

使硬度达到最大值。在过时效期间

富铜过渡相逐渐演化成fcc ε-Cu颗粒

Abstract

The structure and hardncss of contained Cu high purity steel -0.014C

0. 10Mn

0.05Si

1.18Cu

＜0.002S

0.006P during isothermnal aging at 650 ℃ for 100 s~300 h have been tested and studied by scanning and high resolution electron microscope and HV50 hardhness tester. The test results showed that with aging at 650 ℃

the rich copper phase particles precipitated prior at ferrite grain boundary

and with increasing isothermal aging time the size of rich copper phase increased. As aging at 650 ℃ for 10' s

the rich copper transient phase kept coherency with ferrite matrix led to maximum hardness value.And during overaging period

the transient phase evolved gradually into fcc e-Cu particle.

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