Stress Corrosion Cracking in an Extruded Cu-Free Al-Zn-Mg Alloy

被引：4

作者：

Lervik, Adrian ^{[1
]}

C. Walmsley, John ^{[1
,2
,3
]}

Lodgaard, Lars ^{[4
]}

D. Marioara, Calin ^{[3
]}

Johnsen, Roy ^{[5
]}

Lunder, Otto ^{[3
]}

Holmestad, Randi ^{[1
]}

机构：

[1] Norwegian Univ Sci & Technol NTNU, Dept Phys, N-7491 Trondheim, Norway

[2] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England

[3] SINTEF Ind, N-7465 Trondheim, Norway

[4] Benteler Automot, N-2830 Raufoss, Norway

[5] Norwegian Univ Sci & Technol NTNU, Dept Mech & Ind Engn, N-7491 Trondheim, Norway

来源：

METALS | 2020年 / 10卷 / 09期

关键词：

aluminium alloys; stress corrosion cracking; transmission electron microscopy; EBSD; microstructure; grain boundaries; GRAIN-BOUNDARY SEGREGATION; ALUMINUM-ALLOYS; HYDROGEN EMBRITTLEMENT; COPPER CONTENT; ATOM-PROBE; MICROSTRUCTURE; PRECIPITATION; NUCLEATION; EVOLUTION; BEHAVIOR;

D O I：

10.3390/met10091194

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Stress corrosion cracking (SCC) in Cu-free Al-Zn-Mg (7xxx) aluminium alloys limits its use in many applications. In this work, we study in detail the microstructure of a peak and slightly overaged condition in an AA7003 alloy using transmission- and scanning electron microscopy in order to provide a comprehensive understanding of the microstructural features related to SCC. The SCC properties have been assessed using the double cantilever beam method and slow strain rate tensile tests. Grain boundary particles, precipitate free zones, and matrix precipitates have been studied. A difference in the SCC properties is established between the two ageing conditions. The dominating difference is the size and orientation of the hardening phases. Possible explanations correlating the microstructure and SCC properties are discussed.

引用

收藏

页码：1 / 20

页数：20

相关论文

共 50 条

[11] Effect of S-Phase Dissolution on the Corrosion and Stress Corrosion Cracking of an As-Rolled Al-Zn-Mg-Cu Alloy [J].

Xu, D. K. ;

Birbilis, N. ;

Rometsch, P. A. .

CORROSION, 2012, 68 (03)

[12] Influence of Scandium Addition on Stress Corrosion Cracking Susceptibility of Al-Zn-Mg Alloy in Different Corrosive Environments [J].

Li, Zhaoming ;

Jiang, Haichang ;

Yan, Desheng ;

Rong, Lijian .

METALS, 2018, 8 (04)

[13] Effect of interrupted ageing on stress corrosion cracking (SCC) behaviour of an Al-Zn-Mg-Cu alloy [J].

Rout, Prasanta Kumar ;

Ghosh, M. M. ;

Ghosh, K. S. .

INTERNATIONAL CONFERENCE ON ADVANCES IN MANUFACTURING AND MATERIALS ENGINEERING (ICAMME 2014), 2014, 5 :1214-1223

[14] Ageing behavior and stress corrosion cracking resistance of a non-isothermally aged Al-Zn-Mg-Cu alloy [J].

Jiang, J. T. ;

Xiao, W. Q. ;

Yang, L. ;

Shao, W. Z. ;

Yuan, S. J. ;

Zhen, L. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2014, 605 :167-175

[15] Effect of sampling direction on the stress corrosion cracking behavior of Al-Zn-Mg alloy [J].

Wu J.-S. ;

Deng Y.-L. ;

Zhang Z. ;

Zhang Y.-D. ;

Sun L. .

Gongcheng Kexue Xuebao/Chinese Journal of Engineering, 2019, 41 (03) :350-358

[16] Correlations among stress corrosion cracking, grain-boundary microchemistry, and Zn content in high Zn-containing Al-Zn-Mg-Cu alloys [J].

Yuan, Ding-ling ;

Chen, Song-yi ;

Chen, Kang-hua ;

Huang, Lan-ping ;

Chang, Jiang-yu ;

Zhou, Liang ;

Ding, Yun-feng .

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2021, 31 (08) :2220-2231

[17] Some effects of alloy composition on stress corrosion cracking in Al-Zn-Mg-Cu alloys [J].

Knight, S. P. ;

Pohl, K. ;

Holroyd, N. J. H. ;

Birbilis, N. ;

Rometsch, P. A. ;

Muddle, B. C. ;

Goswami, R. ;

Lynch, S. P. .

CORROSION SCIENCE, 2015, 98 :50-62

[18] Effect of solution pH on electrochemical and stress corrosion cracking behaviour of a 7150 Al-Zn-Mg-Cu alloy [J].

Rout, Prasanta Kumar ;

Ghosh, M. M. ;

Ghosh, K. S. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2014, 604 :156-165

[19] Effect of stress-aging treatment on the mechanical and corrosion properties of Al-Zn-Mg-Cu alloy [J].

Zhang, Zhaogang ;

Ma, Xinwu ;

Zhang, Cunsheng ;

Chu, Guannan ;

Meng, Zijie ;

Zhao, Guoqun ;

Chen, Liang .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2022, 838

[20] Unexpected Stress Corrosion Cracking Improvement Achieved by Recrystallized Layer in Al-Zn-Mg Alloy [J].

Ao, Min ;

Dong, Chaofang ;

Li, Ni ;

Wang, Li ;

Ji, Yucheng ;

Yue, Liang ;

Sun, Xiaoguang ;

Zou, Shiwen ;

Xiao, Kui ;

Li, Xiaogang .

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2021, 30 (08) :6258-6268

← 1 2 3 4 5 →