Effects of Mg contents on microstructures and corrosion behaviors of homogenization Al-Zn-Mg-Cu alloys

被引：26

作者：

Huang, Rensong ^{[1
]}

Yang, Hongfu ^{[1
]}

Sun, Peng ^{[1
]}

Zheng, Shanju ^{[1
]}

Li, Mengnie ^{[1
]}

Duan, Yonghua ^{[1
]}

机构：

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

来源：

CORROSION SCIENCE | 2023年 / 223卷

关键词：

Al-Zn-Mg-Cu Alloys; Microstructure; Corrosion behaviors; Homogenization; Mg element; GRAIN-BOUNDARY MICROCHEMISTRY; 2ND PHASE PARTICLES; LOCALIZED CORROSION; ELECTROCHEMICAL-BEHAVIOR; INTERGRANULAR CORROSION; HEAT-TREATMENT; STRENGTH; RESISTANCE; CRACKING; RECRYSTALLIZATION;

D O I：

10.1016/j.corsci.2023.111461

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study delved into the influence of Mg content on the microstructure and corrosion behavior of homogenized Al-Zn-Mg-Cu alloys. The findings unveiled that alloys featuring a moderate Mg content showcased an exceptionally low immersion corrosion rate of 0.0789 mm/a. A notable 22.3 % reduction in average grain size led to a significant 57.2 % drop in immersion corrosion rate. Furthermore, the augmentation of the Mg(Zn, Al, Cu)2 phase within the grains contributed to a decrease in the maximum immersion corrosion depth of the alloy. These novel findings offer fresh insights and hold potential for enhancing the corrosion resistance of homogenized Al-Zn-MgCu alloys.

引用

页数：18

共 81 条

[1] Effect of solution heat treatment on galvanic coupling between intermetallics and matrix in AA7075-T6 [J].

Andreatta, F ;

Terryn, H ;

de Wit, JHW .

CORROSION SCIENCE, 2003, 45 (08) :1733-1746

[2] Electrochemical behavior and localized corrosion associated with Al7Cu2Fe particles in aluminum alloy 7075-T651 [J].

Birbilis, N. ;

Cavanaugh, M. K. ;

Buchheit, R. G. .

CORROSION SCIENCE, 2006, 48 (12) :4202-4215

[3] Corrosion of AA2024-T3 Part I. Localised corrosion of isolated IM particles [J].

Boag, A. ;

Hughes, A. E. ;

Glenn, A. M. ;

Muster, T. H. ;

McCulloch, D. .

CORROSION SCIENCE, 2011, 53 (01) :17-26

[4] Effects of Cu addition on the precipitation hardening response and intergranular corrosion of Al-5.2Mg-2.0Zn (wt.%) alloy [J].

Cao, Cheng ;

Zhang, Di ;

Wang, Xu ;

Ma, Qibiao ;

Zhuang, Linzhong ;

Zhang, Jishan .

MATERIALS CHARACTERIZATION, 2016, 122 :177-182

[5] Influence of Al7Cu2Fe intermetallic particles on the localized corrosion of high strength aluminum alloys [J].

Chemin, Aline ;

Marques, Denys ;

Bisanha, Leandro ;

Motheo, Artur de Jesus ;

Bose Filho, Waldek Wladimir ;

Figueiredo Ruchert, Cassius Olivio .

MATERIALS & DESIGN, 2014, 53 :118-123

[6] Effect of precipitate state on the stress corrosion behavior of 7050 aluminum alloy [J].

Chen, Junfeng ;

Zhang, Xingfeng ;

Zou, Linchi ;

Yu, Yan ;

Li, Qiang .

MATERIALS CHARACTERIZATION, 2016, 114 :1-8

[7] Effect of of Yb, Cr and Zr additions on recrystallization and corrosion resistance of Al-Zn-Mg-Cu alloys [J].

Chen, K. H. ;

Fang, H. C. ;

Zhang, Z. ;

Chen, X. ;

Liu, G. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 497 (1-2) :426-431

[8] Local corrosion mechanism of an Al-Zn-Mg-Cu alloy in oxygenated chloride solution: Cathode activity of quenching-induced η precipitates [J].

Chen, Mingyang ;

Zheng, Xu ;

He, Kezhun ;

Liu, Shengdan ;

Zhang, Yong .

CORROSION SCIENCE, 2021, 191

[9] Effect of two-stage overaging on microstructure and corrosion properties of an Al-Zn-Mg-Cu alloy [J].

Cheng, Quanshi ;

Ye, Lingying ;

Huang, Qingmei ;

Dong, Yu ;

Liu, Shengdan .

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2022, 20 :3185-3194

[10] The behaviour of second phase particles during anodizing of aluminium alloys [J].

de Miera, M. Saenz ;

Curioni, M. ;

Skeldon, P. ;

Thompson, G. E. .

CORROSION SCIENCE, 2010, 52 (07) :2489-2497

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