Effect of aging temperature on microstructure and corrosion behavior of 6082 aluminum alloy

被引：9
作者：
Yang, Li [1 ]
Bai, Di [1 ]
Wang, Dongxu [1 ]
Liu, Chaojie [1 ]
Yang, Shoubing [1 ]
Huang, Genzhe [1 ]
机构：
[1] Changchun Univ Sci & Technol, Sch Electromech Engn, Changchun 130022, Peoples R China
来源：
MATERIALS TODAY COMMUNICATIONS | 2023年 / 36卷
关键词：
6082 aluminum alloy; Artificial aging temperature; Precipitates; Corrosion; INTERGRANULAR CORROSION; CU CONTENT; AL; SI; RECRYSTALLIZATION; PRECIPITATION; PARTICLES; EVOLUTION; MG2SI; RATIO;
D O I：
10.1016/j.mtcomm.2023.106583
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of artificial aging temperatures on microstructure precipitation characteristics and corrosion behavior of extruded 6082 aluminum alloy had been investigated. Electrochemical measurements and microstructure characterization techniques were conducted on the alloy with under-aging, peak-aging and over-aging. The results show that the alloy had the maximum corrosion current density and corrosion depth under peak-aging, and the over-aging treatment optimized the corrosion behavior. The fiber texture in extruded alloy was the weak site of corrosion, and the Si particles distributed along the plastic deformation flow lines acted as a bridge to the propagation of corrosion cracks. The coarsening and dissolution of precipitates & beta;-- Mg2Si reduced the corrosion damage along the plastic deformation flow lines, leading to the change of corrosion model. The polarity change caused by & beta;-- Mg2Si de-alloying behavior was the main driving force for the development of IGC.
引用
收藏
页数：10
相关论文
共 32 条
  • [1] Investigations on the long-term stability of 6013-T6 sheet
    Braun, R
    [J]. MATERIALS CHARACTERIZATION, 2006, 56 (02) : 85 - 95
  • [2] Atomic pillar-based nanoprecipitates strengthen AlMgSi alloys
    Chen, JH
    Costan, E
    van Huis, MA
    Xu, Q
    Zandbergen, HW
    [J]. SCIENCE, 2006, 312 (5772) : 416 - 419
  • [3] A study of the crystallographic pitting behavior of Al-0.54Mg-0.66Si aluminum alloy in acidic chloride solutions
    Chen, Mingyang
    Deng, Yunlai
    Tang, Jianguo
    Fan, Shitong
    Zhang, Xinming
    [J]. MATERIALS CHARACTERIZATION, 2019, 148 : 259 - 265
  • [4] The influence of MgSi particle reactivity and dissolution processes on corrosion in Al-Mg-Si alloys
    Eckermann, Fabian
    Suter, Thomas
    Uggowitzer, Peter J.
    Afseth, Andreas
    Schmutz, Patrick
    [J]. ELECTROCHIMICA ACTA, 2008, 54 (02) : 844 - 855
  • [5] Effect of aging time at low aging temperatures on the corrosion of aluminum alloy 6061
    El-Menshawy, Kamal
    El-Sayed, Abdel-Wahab A.
    El-Bedawy, Mohammed E.
    Ahmed, Hafez A.
    El-Raghy, Saed M.
    [J]. CORROSION SCIENCE, 2012, 54 : 167 - 173
  • [6] Corrosion of AA6061 Brazed with an Al-Si Alloy: Effects of Si on Metallurgical and Corrosion Behavior
    Fleming, K. M.
    Zhu, A.
    Scully, J. R.
    [J]. CORROSION, 2012, 68 (12) : 1126 - 1145
  • [7] Effect of pre-stretching on the mechanical behaviour of three artificially aged 6xxx series aluminium alloys
    Granum, Henrik
    Myhr, Ole Runar
    Borvik, Tore
    Hopperstad, Odd Sture
    [J]. MATERIALS TODAY COMMUNICATIONS, 2021, 27 (27):
  • [8] Electrochemical Behavior and Localized Corrosion Associated with Mg2Si Particles in Al and Mg Alloys
    Gupta, R. K.
    Sukiman, N. L.
    Fleming, K. M.
    Gibson, M. A.
    Birbilis, N.
    [J]. ECS ELECTROCHEMISTRY LETTERS, 2012, 1 (01) : C1 - C3
  • [9] On the Intergranular Corrosion and Hardness Evolution of 6xxx Series Al Alloys as a Function of Si:Mg Ratio, Cu Content, and Aging Condition
    Kairy, S. K.
    Rometsch, P. A.
    Davies, C. H. J.
    Birbilis, N.
    [J]. CORROSION, 2017, 73 (10) : 1280 - 1295
  • [10] Al 6082 alloy strengthening through low strain multi-axial forging
    Kumar, N.
    Owolabi, G. M.
    Jayaganthan, R.
    [J]. MATERIALS CHARACTERIZATION, 2019, 155
1234