[1]肖珣,王亚强,张金钰,等.锆合金包壳表面金属Cr涂层的研究进展[J].中国材料进展,2022,41(06):445-457.[doi:10.7502/j.issn.1674-3962.202103006]
　XIAO Xun,WANG Yaqiang,ZHANG Jinyu,et al.Research Progress of Metal Cr Coating on Zirconium Alloy Cladding in Water-Cooled Reactors[J].MATERIALS CHINA,2022,41(06):445-457.[doi:10.7502/j.issn.1674-3962.202103006]
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锆合金包壳表面金属Cr涂层的研究进展()
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
41
期数:
2022年第06期
页码:
445-457
栏目:
出版日期:
2022-06-30

文章信息/Info

Title:
Research Progress of Metal Cr Coating on Zirconium Alloy Cladding in Water-Cooled Reactors
文章编号:
1674-3962(2022)06-0445-13
作者:
肖珣; 王亚强; 张金钰; 吴凯; 刘刚; 孙军
（西安交通大学 金属材料强度国家重点实验室，陕西 西安 710049）
Author(s):
XIAO Xun;  WANG Yaqiang;  ZHANG Jinyu;  WU Kai;  LIU Gang;  SUN Jun
(State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, China)
关键词:
锆合金包壳; 表面技术; 金属Cr涂层; 制备方法; 微观组织; 服役性能
Keywords:
zirconium alloy cladding;  surface technology;  metal Cr coating;  preparation;  microstructures;  service performance
分类号:
TG144；TL352.2+2
DOI:
10.7502/j.issn.1674-3962.202103006
文献标志码:
A
摘要:
锆合金由于自身良好的力学性能、耐腐蚀性能和中子经济性，被广泛应用于水冷反应堆核燃料包壳材料，然而在失水事故工况下锆合金会与高温水蒸气剧烈反应生成大量氢气，进而引发核事故。目前，提高锆合金包壳服役性能的最有效途径是在其表面制备一层防护涂层，其中，金属Cr涂层具有优异的抗高温氧化、耐腐蚀性能以及良好的力学强度和衬底附着力，是一种最具发展潜力的锆合金包壳涂层材料。主要从制备工艺、微观组织和服役性能3个方面，对锆合金包壳表面金属Cr涂层的研究现状进行了综述。首先介绍了锆合金包壳金属Cr涂层的主要制备工艺技术，重点阐述了各制备工艺的特点及不足；其次总结了金属Cr涂层的柱状晶、等轴晶和无序非晶结构，分析了3种微观组织的结构特征和生长机制，以及制备工艺参数对组织形成的影响作用；然后阐述了锆合金包壳金属Cr涂层的力学性能、抗高温氧化性能、耐腐蚀性能和抗辐照性能，并对其塑性变形机制、腐蚀氧化机理和辐照损伤机制进行了深入剖析；最后对当前研究中存在的问题以及未来的发展方向进行了分析和展望。
Abstract:
Zirconium alloy is widely used as nuclear fuel cladding materials for water-cooled reactors because of its good mechanical properties, corrosion resistance and neutron economy. However, it will react with high temperature steam with generating a large amount of hydrogen under the loss of coolant accident, thus leading to the nuclear accident. At present, the most effective way to improve the service performance of zirconium alloy cladding is to prepare a layer of protective coating on its surface. The metal Cr coating is one of the most potential materials for the zirconium alloy cladding, owing to its excellent high-temperature oxidation resistance, corrosion resistance, good mechanical strength and interfacial adhesion. In this paper, research status of the metal Cr coating on zirconium alloy cladding was reviewed from three aspects of preparation technology, microstructure and service performance. Firstly, the main preparation techniques of metal Cr coating were introduced, and the characteristics and shortcomings of each preparation method were emphasized. Secondly, the columnar crystal, equiaxed crystal and disordered amorphous structure of Cr coating were summarized. The structural characteristics and growth mechanisms of the three microstructures, as well as the effect of process parameters on the microstructures were analyzed. Moreover, the mechanical properties, high-temperature oxidation resistance, corrosion resistance and irradiation resistance of the metal Cr coating were elaborated, deeply analyzing the plastic deformation, corrosion, oxidation and irradiation damage mechanisms. Finally, the existed problems and the future development direction in the current research were analyzed and prospected.

备注/Memo

备注/Memo:
收稿日期：2021-03-08 基金项目：国家自然科学基金资助项目（51790482，51722104， 52001247）；博士后创新人才支持计划项目（BX20 190266）；博士后科学基金面上项目（2019M663689）第一作者：肖珣，女，1997年生，硕士研究生 通讯作者：王亚强，男，1988年生，副教授， Email:yaqiangwang@xjtu.edu.cn 孙军，男，1959年生，中国科学院院士，博士生导师
更新日期/Last Update: 2022-05-26