Enhanced thermostability via dislocation-assisted heterogeneous co-precipitation in Cu-Cr-Hf alloy
发布时间：2026-09-11
点击次数：
- 影响因子：
- 16.8
- DOI码：
- 10.1016/j.jmst.2025.04.040
- 所属单位：
- 中南大学材料科学与工程学院
- 发表刊物：
- Journal of Materials Science & Technology
- 关键字：
- Copper alloy
- 摘要：
- Over-aging softening due to second-phase particle coarsening is a prevalent issue in age-hardenable copper alloys, limiting their performance optimization and high-temperature applications. We propose a dislocation-assisted heterogeneous co-precipitation strategy for high thermal stability in Cu-Cr-Hf alloys, leveraging the dislocation sensitivity of Hf phase nucleation as a key element of this approach. Through this, we explore their precipitation behavior and observe two novel co-precipitation modes.
- 合写作者：
- Li Linhan, Pang Yong, Ren Kalubi, Li Ying, Zhang Chaomin, Yi Jiang, Li Zhou
- 第一作者：
- 贾延琳
- 学科门类：
- 工学
- 一级学科：
- 材料科学与工程
- 卷号：
- 244
- 页面范围：
- 88-101
- ISSN号：
- 1005-0302
- 是否译文：
- 否
- 发表时间：
- 2026-02-01