High temperature oxidation of CrAl-coated Zr-1 Nb alloy in 1000-1300 °C steam

被引：6
|
作者：
Wang, Xingping [1 ]
Zhou, Qian [2 ,3 ]
Zhao, Jinqiang [4 ]
Liao, Yizhao [1 ]
Xu, Chi [2 ,3 ]
Jin, Xiaoyue [3 ]
Du, Jiancheng [2 ,3 ]
Xue, Wenbin [2 ,3 ]
Wang, Wenxuan [5 ]
机构：
[1] Lanzhou Jiaotong Univ, Sch Mat Sci & Engn, Lanzhou 730070, Peoples R China
[2] Beijing Normal Univ, Coll Nucl Sci & Technol, Key Lab Beam Technol Minist Educ, Minist Educ, Beijing 100875, Peoples R China
[3] Beijing Acad Sci & Technol, Inst Radiat Technol, Beijing 100875, Peoples R China
[4] China Special Equipment Inspection & Res Inst, Beijing 100020, Peoples R China
[5] Lanzhou Jiaotong Univ, Sch Mech Engn, Lanzhou 730070, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2023年 / 969卷
基金：
中国国家自然科学基金;
关键词：
CrAl coating; High-temperature steam oxidation; Zr-1 Nb alloy; Filtered cathodic vacuum arc deposition; Diffusion; ACCIDENT TOLERANT FUEL; FECRAL-ALLOYS; SELF-DIFFUSION; OXIDE LAYER; ZIRCALOY-4; AL; RESISTANCE; KINETICS; OXYGEN; ZR-1NB-1SN-0.1FE;
D O I：
10.1016/j.jallcom.2023.172420
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The CrAl coating of 13 mu m thick on Zr-1 Nb alloy prepared by filtered cathodic vacuum arc deposition with Cr70Al30 target exhibited excellent steam oxidation resistance below 1200 degrees C, but its protective properties were obviously weakened at 1300 degrees C. The mass gain of CrAl-coated alloy was 7.8%, 6.5%, 16.6% and 66.0% of that of bare alloy after 3600 s oxidation at 1000 degrees C, 1100 degrees C, 1200 degrees C and 1300 degrees C, respectively. The addition of a little Al in CrAl coating was beneficial to further suppress oxygen diffusion into alloy substrate due to the hindering effect of Al2O3 against oxygen atoms.
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页数：13
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