Effects of Cr Coating on Fretting Wear Behavior of Zr-1Nb Alloy Cladding

被引:0
作者
Peng Zhenxun [1 ]
Wang Zhanwei [1 ]
Yan Jun [1 ]
Zhao Yahuan [1 ]
Liang Xue [2 ]
Liu Tingting [1 ]
Ma Wenhui [1 ]
Ren Qisen [1 ]
Liao Yehong [1 ]
Li Kun [1 ]
机构
[1] China Nucl Power Res Inst, Shenzhen 518026, Peoples R China
[2] Shanghai Univ, Lab Microstruct, Shanghai 200444, Peoples R China
关键词
fuel cladding; Zr-1Nb alloy; Cr coating; fretting wear; HIGH-TEMPERATURE OXIDATION; FUEL; WATER;
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The fretting wear behavior and damage mechanism of Cr-coated and uncoated Zr-1Nb alloy cladding with AFA 3G grid under simulated PWR primary water environment were studied contrastively by 3D white light interferometer, SEM and EDS. The results indicate that Cr coating can significantly improve the fretting wear resistance of Zr-1Nb alloy cladding. In addition, for cladding against dimple, the dominant wear mechanism of Zr-1Nb is delamination and abrasive wear. However, the main damage mechanism of Cr- coated Zr-1Nb is adhesive wear and materials transfer, due to higher surface hardness and formation of protective third body layer. For cladding against spring, the damage mechanism is delamination and adhesive wear for Zr-1Nb, while abrasive wear for Cr-coated Zr-1Nb.
引用
收藏
页码:3419 / 3426
页数:8
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