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

[21] Effect of heating rate during solution treatment on microstructure, mechanical property and corrosion resistance of high-strength AA 7075 alloy [J].

Huo, Wangtu ;

Sun, Taotao ;

Hou, Longgang ;

Zhang, Wei ;

Zhang, Yusheng ;

Zhang, Jishan .

MATERIALS CHARACTERIZATION, 2020, 167

[22] The effects of non-isothermal aging on the strength and corrosion behavior of Al-Zn-Mg-Cu alloy [J].

Jiang, Daming ;

Liu, Yuan ;

Liang, Shuai ;

Xie, Wenlong .

JOURNAL OF ALLOYS AND COMPOUNDS, 2016, 681 :57-65

[23] Corrosion behavior and mechanism of Al-Zn-Mg-Cu alloy based on the characterization of the secondary phases [J].

Jiang, Lei ;

Zhang, Zhihao ;

Fu, Huadong ;

Huang, Shiyu ;

Zhuang, Dawei ;

Xie, Jianxin .

MATERIALS CHARACTERIZATION, 2022, 189

[24] The role of microstructure and microchemistry on intergranular corrosion of aluminium alloy AA7085-T7452 [J].

Kairy, S. K. ;

Turk, S. ;

Birbilis, N. ;

Shekhter, A. .

CORROSION SCIENCE, 2018, 143 :414-427

[25] Correlations between intergranular stress corrosion cracking, grain-boundary microchemistry, and grain-boundary electrochemistry for Al-Zn-Mg-Cu alloys [J].

Knight, S. P. ;

Birbilis, N. ;

Muddle, B. C. ;

Trueman, A. R. ;

Lynch, S. P. .

CORROSION SCIENCE, 2010, 52 (12) :4073-4080

[26] Dealloying-driven local corrosion by intermetallic constituent particles and dispersoids in aerospace aluminium alloys [J].

Kosari, A. ;

Tichelaar, F. ;

Visser, P. ;

Zandbergen, H. ;

Terryn, H. ;

Mol, J. M. C. .

CORROSION SCIENCE, 2020, 177

[27] In-situ nanoscopic observations of dealloying-driven local corrosion from surface initiation to in-depth propagation [J].

Kosari, A. ;

Zandbergen, H. ;

Tichelaar, F. ;

Visser, P. ;

Taheri, P. ;

Terryn, H. ;

Mol, J. M. C. .

CORROSION SCIENCE, 2020, 177

[28] Mitigating Intergranular Stress Corrosion Cracking in Age-Hardenable Al-Zn-Mg-Cu Alloys [J].

Krishnan, M. Ajay ;

Raja, V. S. ;

Shukla, Shweta ;

Vaidya, S. M. .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2018, 49A (06) :2487-2498

[29] SCC susceptibility of RRA treated high-zinc 7068 aluminum alloy [J].

Kumar, Ankur ;

Chaudhari, Gajanan P. ;

Nath, S. K. .

CORROSION SCIENCE, 2023, 220

[30] Effect of ageing on precipitation evolution and corrosion behaviour of Al-Zn-Mg-Cu alloy [J].

Li, Guisheng ;

Xu, Gaoshan ;

Sun, Rui ;

Liang, Shan ;

Li, Jinghui ;

Zhang, Mingya .

MATERIALS SCIENCE AND TECHNOLOGY, 2023, 39 (02) :177-186

← 1 2 3 4 5 6 7 8 9 →