热压烧结Cu-ZrO2 合金的组织调控与性能研究

doi:10.16568/j.0254-6086.202503001

核聚变与等离子体物理 ›› 2025, Vol. 45 ›› Issue (3): 249-256.DOI: 10.16568/j.0254-6086.202503001

• 核聚变工程 • 下一篇

热压烧结Cu-ZrO₂ 合金的组织调控与性能研究

刘玉浩¹，陈旭洲¹，王子杰^{1, 2}，王建豹^*2，王英敏¹，邓翔¹，羌建兵¹，封范²，练友运²，刘翔²

(1. 大连理工大学三束材料改性教育部重点实验室，大连 116024；2. 核工业西南物理研究院，成都 610041)

收稿日期:2024-06-11 修回日期:2024-10-21 出版日期:2025-09-15 发布日期:2025-09-29
通讯作者: 王建豹(1986-)，男，河北大名人，副研究员，从事核聚变装置偏滤器部件研究。
作者简介:刘玉浩(1998-)，男，山东潍坊人，硕士研究生，从事核聚变装置偏滤器热沉材料研究。
基金资助:
国家磁约束聚变能发展研究专项(2019YFE03120004)

Study on microstructure manipulation and properties of hot pressing sintered Cu-ZrO₂ alloys

LIU Yu-hao¹, CHEN Xu-zhou¹, WANG Zi-jie^{1, 2}, WANG Jian-bao², WANG Ying-min¹, DENG Xiang¹, QIANG Jian-bing¹, FENG Fan², LIAN You-yun², LIU Xiang²

(1. Key Laboratory of Materials Modification by Laser, Ion, and Electron Beams (Ministry of Education), Dalian University of
Technology, Dalian 116024; 2. Southwestern Institute of Physics, Chengdu 610041)

Received:2024-06-11 Revised:2024-10-21 Online:2025-09-15 Published:2025-09-29

摘要/Abstract

摘要：

氧化物弥散增强铜合金(ODS-Cu)是未来核聚变装置偏滤器部件的候选热沉材料。采用电弧熔炼和真空雾化法制备的Cu₆₄Zr₃₆ 非晶粉末与Cu₂O 和Cu 粉一起作为原料混合球磨，球磨粉体在980℃和70 MPa 压强下烧结获得相对密度95.5%的Cu-ZrO₂ 合金烧结坯。结合轧制和退火处理调控了合金的组织均匀性，轧制变形量为86%，热处理工艺为475℃退火1 h。退火态合金的室温电导率为87% IACS，室温屈服强度和抗拉强度分别为213 MPa 和282 MPa，断后延伸率为20.2%；450℃屈服强度和抗拉强度为分别为125 MPa 和159 MPa，断后延伸率为23.2%。提出了含非晶的粉体烧结氧化物的原位形成机制，分析了影响合金组织均匀性与高温稳定性的重要因素。

关键词: 热压烧结, 非晶粉末, 氧化物弥散强化铜合金, 拉伸性能, 电导率

Abstract:

Oxide Dispersion Strengthened Copper Alloy (ODS-Cu) is a candidate heat sink material for the divertor components of future nuclear fusion devices. In this study, Cu₆₄Zr₃₆ amorphous powders were prepared by arc melting and vacuum atomization methods. These powders, together with Cu₂O and Cu powders, were usedas raw materials for mixed ball milling. The ball-milled powders were sintered at 980℃ under a pressure of 70 MPa to obtain a Cu-ZrO₂ alloy sintered billet with a relative density of 95.5%. The microstructure uniformity of the alloy was regulated by combining rolling and annealing treatments. The rolling deformation amount was 86%, and the heat treatment process was annealing at 475℃ for 1 hour. The electrical conductivity of the annealed alloy at room temperature was 87% IACS. The yield strength and tensile strength at room temperature were 213 MPa and 282 MPa respectively, and the elongation after fracture was 20.2%. At 450℃, the yield strength and tensile strength were 125 MPa and 159 MPa respectively, and the elongation after fracture was 23.2%. The in-situ formation mechanism of oxides by sintering powders containing amorphous phases was proposed, and the important factors affecting the microstructure uniformity and high-temperature stability of the alloy were analyzed.

Key words: Hot-pressure sintering, Amorphous powder, ODS-Cu alloys, Tensile properties, Electrical conductivity

中图分类号:

TL62⁺2

刘玉浩, 陈旭洲, 王子杰, 王建豹, 王英敏, 邓翔, 羌建兵, 封范, 练友运, 刘翔. 热压烧结Cu-ZrO₂ 合金的组织调控与性能研究[J]. 核聚变与等离子体物理, 2025, 45(3): 249-256.

LIU Yu-hao, CHEN Xu-zhou, WANG Zi-jie, WANG Jian-bao, WANG Ying-min, DENG Xiang, QIANG Jian-bing, FENG Fan, LIAN You-yun, LIU Xiang. Study on microstructure manipulation and properties of hot pressing sintered Cu-ZrO₂ alloys[J]. Nuclear Fusion and Plasma Physics, 2025, 45(3): 249-256.

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热压烧结Cu-ZrO₂ 合金的组织调控与性能研究

Study on microstructure manipulation and properties of hot pressing sintered Cu-ZrO₂ alloys

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