Enhancement of the corrosion resistance of Molybdenum by La2O3 dispersion

被引：20

作者：

Cairang, Wande ^{[1
]}

Li, Tianshu ^{[2
]}

Xue, Dezhen ^{[1
]}

Yang, Hejie ^{[1
]}

Cheng, Pengming ^{[1
]}

Chen, Can ^{[1
]}

Sun, Yuanjun ^{[1
]}

Zeng, Yi ^{[1
,3
]}

Ding, Xiangdong ^{[1
]}

Sun, Jun ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China

[2] Ohio State Univ, Fontana Corros Ctr, Dept Mat Sci & Engn, Columbus, OH 43210 USA

[3] Jinduicheng Molybdenum Co Ltd, Xian 710077, Peoples R China

来源：

CORROSION SCIENCE | 2021年 / 186卷

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Molybdenum; Microstructure; Oxide film; Corrosion behavior; Rare earth doping; LOCALIZED CORROSION; ANODIC-DISSOLUTION; BEHAVIOR; ALLOYS; OXYGEN; XPS; OXIDATION; CARBON; STEEL; OXIDE;

D O I：

10.1016/j.corsci.2021.109469

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The corrosion behavior of pure Molybdenum (Mo) and Mo doped with 0.3 wt.% La2O3 was investigated in aerated 3.5 wt.% NaCl at 25 degrees C. Compared with the pure Mo, the doped Mo exhibits significantly increased corrosion resistance, with a smaller current density during anodic polarization and a 2 similar to 3 times larger charge transfer resistance. Such an enhancement originates from the refinement of grains and purification of the grain boundary due to the addition of La2O3, which facilitates the formation of a compact and protective oxide film. Our results provide a recipe to improve the corrosion resistance of Mo alloys.

引用

页数：15

共 50 条

[41] Effect of La2O3 on the viscosity and structure of CaO-SiO2(-Al2O3)-La2O3 melts
Guo, Wentao
Ding, Ziqi
Wang, Jinming
Wu, Jun
Wang, Zhi
MATERIALS CHEMISTRY AND PHYSICS, 2021, 266
[42] The adsorption and reaction of NO, CH4 and O2 on La2O3 and Sr-promoted La2O3
Huang, SJ
Walters, AB
Vannice, MA
APPLIED CATALYSIS B-ENVIRONMENTAL, 1998, 17 (03) : 183 - 193
[43] Effects of La2O3 Content and Rolling on Microstructure and Mechanical Properties of ODS Molybdenum Alloys
Jingling Ma
Wuhui Li
Guangxin Wang
Yaqiong Li
Hongbo Guo
Zeliang Zhao
Wei Li
Journal of Materials Engineering and Performance, 2017, 26 : 4847 - 4854
[44] Electrospinning preparation and adsorption properties of La2O3 nanofibers and photoluminescence properties of La2O3: Eu nanofibers
Liu, Xinru
Wu, Anping
Xiong, Lichao
Yang, Yunjiang
Gao, Jinrong
Bao, Jinrong
Li, Wenxian
Liu, Ying
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2022, 431
[45] Effects of La2O3 on microstructure and wear properties of thermal clad NiCoW/La2O3 composite coatings
Liang, Bunv
Zhang, Zhenyu
MATERIAL SCIENCE AND ADVANCED TECHNOLOGIES IN MANUFACTURING, 2014, 852 : 153 - 156
[46] Effects of La2O3 Content and Rolling on Microstructure and Mechanical Properties of ODS Molybdenum Alloys
Ma, Jingling
Li, Wuhui
Wang, Guangxin
Li, Yaqiong
Guo, Hongbo
Zhao, Zeliang
Li, Wei
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2017, 26 (10) : 4847 - 4854
[47] The kinetics of NOx decomposition and NO reduction by CH4 over La2O3 and Sr/La2O3
Vannice, MA
Walters, AB
Zhang, X
JOURNAL OF CATALYSIS, 1996, 159 (01) : 119 - 126
[48] Superficial segregation of La2O3 in Mo-La2O3 cathodes
Wang, Jinshu
Zhou, Meiling
Zhang, Jiuxing
Nie, Zuoren
Zuo, Tieyong
Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering, 2000, 29 (05): : 324 - 327
[49] Superficial segregation of La2O3 in Mo-La2O3 cathodes
Wang, JS
Zhou, ML
Zhang, JX
Nie, ZR
Zuo, TY
RARE METAL MATERIALS AND ENGINEERING, 2000, 29 (05) : 324 - 327
[50] A Comparative Study of the Impact of La2O3 and La2Zr2O7 Dispersions on Molybdenum Microstructure, Mechanical Properties, and Fracture
Tkachenko, Serhii
Slamecka, Karel
Bednarikova, Vendula
Remesova, Michaela
Gejdos, Pavel
Ksenzova, Olha
Valasek, Daniel
Dvorak, Karel
Sulak, Ivo
Galikova, Marketa
Balaz, Matej
Deak, Andrea
Cihlar, Jaroslav
Celko, Ladislav
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2024, : 14483 - 14494

← 1 2 3 4 5 →