High-temperature degradation behavior of PEO-coated ZIRLO alloy in N2 and N2+steam environments at 900 and 1000 °C

被引：0
|
作者：
Guan, Haohao [1 ,2 ,3 ]
Zhou, Qian [1 ,2 ]
Xu, Chi [1 ,2 ,4 ]
Jin, Xiaoyue [2 ]
Du, Jiancheng [1 ,2 ]
Xue, Wenbin [1 ,2 ,4 ]
机构：
[1] Beijing Normal Univ, Coll Nucl Sci & Technol, Key Lab Beam Technol, Minist Educ, Beijing 100875, Peoples R China
[2] Beijing Acad Sci & Technol, Inst Radiat Technol, Beijing 100875, Peoples R China
[3] State Nucl BaoTi Zirconium Ind Co, Baoji 721013, Peoples R China
[4] Innovat Ctr Nucl Mat Natl Def Ind, Beijing 102413, Peoples R China
来源：
JOURNAL OF NUCLEAR MATERIALS | 2024年 / 597卷
基金：
中国国家自然科学基金;
关键词：
ZIRLO alloy; PEO coating; High -temperature nitridation; Steam oxidation; MICROARC OXIDATION FILM; STEAM OXIDATION; ZIRCONIUM ALLOY; AIR INGRESS; PART I; ZIRCALOY-4; OXIDE; KINETICS; NITROGEN; MIXTURES;
D O I：
10.1016/j.jnucmat.2024.155091
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A compact oxide coating of similar to 10 mu m thick on ZIRLO alloy was fabricated by plasma electrolytic oxidation (PEO). The morphologies, compositions, phase constituents before and after exposures in N-2 and N-2+steam environments at 900 and 1000 degrees C were characterized. The PEO coating greatly enhanced the corrosion resistance of ZIRLO alloy in the N-2+steam atmosphere at 900 and 1000 degrees C. The kinetic curves transformed from parabolic behavior for bare alloy and exponential behavior for PEO-coated alloy at pre-transition stage to linear at post-transition stage, due to the formation of ZrN and its re-oxidation.
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页数：11
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