模拟重水堆一回路水中<strong>Zr-2.5Nb</strong>压力管与承重垫片的微动磨损行为

doi:10.11901/1005.3093.2025.204

材料研究学报

2026, Vol. 40

Issue (3): 217-224 DOI: 10.11901/1005.3093.2025.204

研究论文

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模拟重水堆一回路水中Zr-2.5Nb压力管与承重垫片的微动磨损行为

赵冠楠¹, 王术极²^,³, 张玉圣²(

), 明洪亮²(

), 习建勋⁴, 王俭秋², 韩恩厚⁵

^1.上海核工程研究设计院股份有限公司核电关键材料全国重点实验室上海 200233
^2.中国科学院金属研究所中国科学院核用材料与安全评价重点实验室沈阳 110016
^3.东北大学材料科学与工程学院沈阳 110819
^4.中核北方核燃料元件有限公司包头 014035
^5.广东省腐蚀科学与技术创新研究院广州 510530

Fretting Wear Behavior of Zr-2.5Nb Pressure Tubes Coupled with Bearing Pads in a Simulated Water of Primary Loop for Heavy Water Reactor

ZHAO Guannan¹, WANG Shuji²^,³, ZHANG Yusheng²(

), MING Hongliang²(

), XI Jianxun⁴, WANG Jianqiu², HAN En-Hou⁵

^1.State Key Laboratory of Materials for Advanced Nuclear Energy, Shanghai Nuclear Engineering Research & Design Institute Co., Ltd., Shanghai 200233, China
^2.CAS Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
^3.School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China
^4.China North Nuclear Fuel Co., Ltd., Baotou 014035, China
^5.Institute of Corrosion Science and Technology, Guangzhou 510530, China

引用本文:

赵冠楠, 王术极, 张玉圣, 明洪亮, 习建勋, 王俭秋, 韩恩厚. 模拟重水堆一回路水中Zr-2.5Nb压力管与承重垫片的微动磨损行为[J]. 材料研究学报, 2026, 40(3): 217-224.
Guannan ZHAO, Shuji WANG, Yusheng ZHANG, Hongliang MING, Jianxun XI, Jianqiu WANG, En-Hou HAN. Fretting Wear Behavior of Zr-2.5Nb Pressure Tubes Coupled with Bearing Pads in a Simulated Water of Primary Loop for Heavy Water Reactor[J]. Chinese Journal of Materials Research, 2026, 40(3): 217-224.

全文: PDF(11808 KB) HTML

摘要:

研究了模拟重水堆一回路水中两种典型振动工况下Zr-2.5Nb压力管与承重垫片间的微动磨损行为，并分析了压力管的损伤程度、磨损机制和材料的退化方式。结果表明：压力管的主要磨损机制为磨粒磨损，亚机制为微耕；在严苛振动工况下压力管的磨粒磨损加剧，使压力管严重损伤。还详细讨论了磨粒和犁沟槽的形成机制。

关键词 ：材料失效与保护, 微动磨损, 压力管, 高温高压水

Abstract：

Fretting wear between Zr-2.5Nb pressure tubes and bearing pads occurs inevitably owing to flow induced vibration during the operation of heavy water reactor, which can be regarded as one of the main failure forms of pressure tubes. The fretting wear behavior between Zr-2.5Nb pressure tubes and bearing pads under two typical vibration conditions in a simulated water of primary loop for heavy water reactor was investigated. The wear degree, wear mechanism and material degradation form of the pressure tube were analyzed. The results showed that the main wear mechanism of the pressure tube was abrasive wear, and the sub-mechanism was micro-ploughing. Abrasive wear of the pressure tube was aggravated under severe vibration condition, resulting in a serious damage of the pressure tube. In addition, the formation mechanisms of abrasives and grooves were discussed in detail.

Key words： materials failure and protection fretting wear pressure tube high temperature pressurized water

收稿日期: 2025-06-13

ZTFLH:

TB31

基金资助:国家资助博士后研究人员计划(C档)(GZC20232749);中国科学院金属研究所创新基金(2024-PY13);中国科学院青年创新促进会(2022187)

通讯作者: 张玉圣，助理研究员，yshzhang19b@imr.ac.cn，研究方向为核用材料微动磨损；
明洪亮，研究员，hlming12s@imr.ac.cn，研究方向为核用材料损伤评价

Corresponding author: ZHANG Yusheng, Tel: (024)23998826, E-mail: yshzhang19b@imr.ac.cn;
MING Hongliang, Tel: (024)23998826, E-mail: hlming12s@imr.ac.cn

作者简介: 赵冠楠，男，1987年生，博士，高级工程师

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https://www.cjmr.org/CN/10.11901/1005.3093.2025.204 或 https://www.cjmr.org/CN/Y2026/V40/I3/217

图1 压力管和垫片试样的实物图

图2 两种工况下Ft-D曲线随微动周次的变化

图3 两种工况下Zr-2.5Nb压力管内壁磨损区3D形貌

图4 两种工况下Zr-2.5Nb压力管内壁的磨损区轮廓

图5 两种工况下Zr-2.5Nb压力管内壁磨损区SEM表面形貌

图6 在10 N下Zr-2.5Nb压力管内壁磨损区截面SEM形貌

图7 在40 N下Zr-2.5Nb压力管内壁磨损区截面SEM形貌

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