Corrosion behaviors of Mg-39Pb-11.5Al-1B-0.4Sc alloy in 3.5 wt.% NaX (X=F, Cl, Br and I) solutions

被引：3

作者：

Feng, Zhi-qi ^{[1
]}

Sun, Yuan ^{[1
]}

Duan, Yong-hua ^{[1
]}

Qi, Hua-rong ^{[1
]}

Peng, Ming-jun ^{[1
]}

机构：

[1] Kunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2023年 / 33卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Mg-39Pb-11; 5Al-1B-0; 4Sc alloy; halogen solutions; polarization curve; electrochemical impedance spectroscopy (EIS); microstructure; corrosion performance; POTENTIODYNAMIC POLARIZATION; MECHANICAL-PROPERTIES; ZN; BIOCOMPATIBILITY; NANOPARTICLES; ELECTRODES;

D O I：

10.1016/S1003-6326(23)66241-7

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Mg-39Pb-11.5Al-1B-0.4Sc alloy was prepared by melting method, and the corrosion behaviors and mechanisms in 3.5 wt.% NaX (X = F, Cl, Br, and I) solutions were analyzed using X-ray diffraction (XRD), scanning electron microscopy (SEM), polarization curve test, and electrochemical impedance spectroscopy (EIS). The results show that the phases of Mg-39Pb-11.5Al-1B alloy are & alpha;-Mg, Mg2Pb, Mg17Al12 and AlB2. The addition of Sc can refine the microstructure significantly. The corrosion resistance of Mg-39Pb-11.5Al-1B-0.4Sc alloy in NaX solutions is in the order of NaCl < NaBr < NaI < NaF. During the corrosion process in NaX (X=Cl, Br, and I) solutions, Mg is first dissolved, then Mg2Pb is dissolved, and finally Mg17Al12 is fallen off from matrix. The corrosion products of Mg and Mg2Pb are Mg(OH)2 and MgO, respectively.

引用

页码：2030 / 2043

页数：14

共 47 条

[1] Constitutive Equations, Processing Maps, and Microstructures of Pb-Mg-Al-B-0.4Y Alloy under Hot Compression [J].

Bao, Weizong ;

Bao, Longke ;

Liu, Dan ;

Qu, Deyi ;

Kong, Zhuangzhuang ;

Peng, Mingjun ;

Duan, Yonghua .

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2020, 29 (01) :607-619

[2] Effects of Zn on microstructure, mechanical properties and corrosion behavior of Mg-Zn alloys [J].

Cai, Shuhua ;

Lei, Ting ;

Li, Nianfeng ;

Feng, Fangfang .

MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS, 2012, 32 (08) :2570-2577

[3] Super-Nernstian Tafel slopes: An origin in coupled homogeneous kinetics [J].

Chen, Haotian ;

Elliott, Joseph R. ;

Le, Haonan ;

Yang, Minjun ;

Compton, Richard G. .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2020, 869

[4]

COHEN P, 1969, WATER COOLANT TECHNO, P304

[5] Influence of particle size on electrochemical thermodynamics of Nano-Au electrodes: Mechanism, factors, range and degree [J].

Duan, Huijuan ;

Cui, Zixiang ;

Xue, Yongqiang ;

Fu, Qingshan ;

Chen, Xinghui ;

Zhang, Rong .

ELECTROCHIMICA ACTA, 2018, 281 :292-298

[6] Hot Deformation and Processing Map of Pb-Mg-10Al-1B Alloy [J].

Duan, Y. H. .

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2013, 22 (10) :3049-3054

[7] Corrosion Behavior of As-Cast Pb-Mg-Al Alloys in 3.5% NaCl Solution [J].

Duan, Y. H. ;

Sun, Y. ;

He, J. H. ;

Guo, Z. Z. ;

Fang, D. S. .

CORROSION, 2012, 68 (09) :822-826

[8] Corrosion behavior of Pb-39Mg-10Al-1.5B alloy in sodium halide solutions [J].

Duan, Yonghua ;

Li, Ping ;

Zhang, Min ;

Peng, Mingjun ;

Ma, Lishi ;

Shu, Baipo .

JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 729 :1108-1117

[9] Developed constitutive models, processing maps and microstructural evolution of Pb-Mg-10Al-0.5B alloy [J].

Duan, Yonghua ;

Ma, Lishi ;

Qi, Huarong ;

Li, Runyue ;

Li, Ping .

MATERIALS CHARACTERIZATION, 2017, 129 :353-366

[10] Dynamic Recrystallization and Processing Map of Pb-30Mg-9Al-1B Alloy During Hot Compression [J].

Duan, Yonghua ;

Li, Ping ;

Ma, Lishi ;

Li, Runyue .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2017, 48A (07) :3419-3431

← 1 2 3 4 5 →