Improving the corrosion resistance of MgZn1.2GdxZr0.18 (x=0, 0.8, 1.4, 2.0) alloys via Gd additions

被引：114
作者：
Yin, Siqi [1 ,2 ]
Duan, Wenchao [1 ,2 ]
Liu, Wenhong [3 ]
Wu, Liang [4 ]
Bao, Jiaxin [1 ,2 ]
Yu, Jiamin [5 ]
Li, Liang [6 ]
Zhao, Zhong [7 ]
Cui, Jianzhong [1 ,2 ]
Zhang, Zhiqiang [1 ,2 ]
机构：
[1] Northeastern Univ, Key Lab Electromagnet Proc Mat, Minist Educ, Shenyang 110819, Peoples R China
[2] Northeastern Univ, Coll Mat Sci & Engn, Shenyang 110819, Peoples R China
[3] Northeastern Univ, Coll Informat Sci & Engn, Shenyang 110819, Peoples R China
[4] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China
[5] Univ Manchester, Sch Mat, Sackville St, Manchester M13 9PL, Lancs, England
[6] Univ Hertfordshire, Sch Engn & Comp Sci, Dept Engn, Hatfield AL10 9AB, Herts, England
[7] Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Peoples R China
来源：
CORROSION SCIENCE | 2020年 / 177卷
基金：
中国国家自然科学基金;
关键词：
Magnesium; Rare earth elements; Polarization; XPS; Intergranular corrosion; Passive films;
D O I：
10.1016/j.corsci.2020.108962
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Effects of Gd addition on microstructure, corrosion behavior and mechanism of cast and extruded MgZn1.2GdxZr0.18 alloys are investigated through microstructure observation, weight loss and electrochemical tests. Increasing Gd from 0 to 2.0 at.%, grains are refined, MgZn2 phase, W-phase and X-phase are formed successively, and basal texture intensity is decreased. The significantly decreased grain size by extrusion and Gd addition induces formation of protective Gd2O3 and MgO layer. The extruded MgZn1.2Gd2.0Zr0.18 alloy shows decreased corrosion rate of 3.72 +/- 0.36 mm/year, owing to fine and homogeneous microstructure, dual-role (micro-anode and barrier) of X-phase, compact oxidation layer and basal crystallographic texture.
引用
收藏
页数：18
相关论文
共 92 条
[21]   On the corrosion mechanism of Mg investigated by electrochemical impedance spectroscopy [J].
Gomes, Maurilio Pereira ;
Costa, Isolda ;
Pebere, Nadine ;
Rossi, Jesualdo Luiz ;
Tribollet, Bernard ;
Vivier, Vincent .
ELECTROCHIMICA ACTA, 2019, 306 :61-70
[22]   In vitro degradation performance and biological response of a Mg-Zn-Zr alloy [J].
Gu, X. N. ;
Li, N. ;
Zheng, Y. F. ;
Ruan, Liquan .
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2011, 176 (20) :1778-1784
[23]   Effects of samarium content on microstructure and mechanical properties of Mg-0.5Zn-0.5Zr alloy [J].
Guan, Kai ;
Meng, Fanzhi ;
Qin, Pengfei ;
Yang, Qiang ;
Zhang, Dongdong ;
Li, Baishun ;
Sun, Wei ;
Lv, Shuhui ;
Huang, Yuanding ;
Hort, Norbert ;
Meng, Jian .
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2019, 35 (07) :1368-1377
[24]   In vitro degradation and cytotoxicity response of Mg-4% Zn-0.5% Zr (ZK40) alloy as a potential biodegradable material [J].
Hong, Daeho ;
Saha, Partha ;
Chou, Da-Tren ;
Lee, Boeun ;
Collins, Boyce E. ;
Tan, Zongqing ;
Dong, Zhongyun ;
Kumta, Prashant N. .
ACTA BIOMATERIALIA, 2013, 9 (10) :8534-8547
[25]   Technical note:: Concerning the conversion of the constant phase element parameter Y0 into a capacitance [J].
Hsu, CH ;
Mansfeld, F .
CORROSION, 2001, 57 (09) :747-748
[26]   In vitro degradation behavior and cytocompatibility of Mg-Zn-Zr alloys [J].
Huan, Z. G. ;
Leeflang, M. A. ;
Zhou, J. ;
Fratila-Apachitei, L. E. ;
Duszczyk, J. .
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE, 2010, 21 (09) :2623-2635
[27]   Relation between corrosion behavior and microstructure of Mg-Zn-Y alloys prepared by rapid solidification at various cooling rates [J].
Izumi, Shogo ;
Yamasaki, Michiaki ;
Kawamura, Yoshihito .
CORROSION SCIENCE, 2009, 51 (02) :395-402
[28]   Fracture criterion for predicting edge-cracking in Hot rolling of twin-roll casted AZ31 Mg alloy [J].
Jia, Weitao ;
Ma, Lifeng ;
Jiao, Mingyang ;
Le, Qichi ;
Han, Tingzhuang ;
Che, Chaojie .
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2020, 9 (03) :4773-4787
[29]   Deformation and fracture behaviors of AZ31B Mg alloy at elevated temperature under uniaxial compression [J].
Jia, Weitao ;
Ma, Lifeng ;
Le, Qichi ;
Zhi, Chenchen ;
Liu, Pengtao .
JOURNAL OF ALLOYS AND COMPOUNDS, 2019, 783 :863-876
[30]   Influence of crystallographic texture and grain size on the corrosion behaviour of as-extruded Mg alloy AZ31 sheets [J].
Jiang, Bin ;
Xiang, Qing ;
Atrens, Andrej ;
Song, Jiangfeng ;
Pan, Fusheng .
CORROSION SCIENCE, 2017, 126 :374-380
12345678910