The influence of temperature and storage time at RT on nucleation of the β" phase in a 6082 Al-Mg-Si alloy

被引：311
|
作者：
Marioara, CD
Andersen, SJ
Jansen, J
Zandbergen, HW
机构：
[1] Delft Univ Technol, Natl Ctr HREM, Mat Sci Lab, NL-2628 AL Delft, Netherlands
[2] SINTEF, Mat Technol, Dept Appl Phys, N-7465 Trondheim, Norway
[3] Univ Trondheim, TNU, Dept Phys, N-7491 Trondheim, Norway
来源：
ACTA MATERIALIA | 2003年 / 51卷 / 03期
关键词：
precipitation; annealing; transmission electron microscopy (TEM); aluminium; hardness;
D O I：
10.1016/S1359-6454(02)00470-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The age hardening process of a 6082 Al-Mg-Si alloy by isothermal ageing at 100, 125 and 150 degreesC for 0 to 40 days has been investigated by both conventional and high-resolution transmission electron microscopy. Changes in sizes and densities of the pre-beta" and beta" phases during ageing can explain the evolution of hardness, in particular a plateau in the curve of the hardness versus ageing time. Fully coherent pre-beta" particles (GP-1 zones) are formed from atomic clusters that were created upon annealing or at natural ageing. Room temperature (RT) storage reduces the number of pre-beta" particles by a factor of 5. Ageing at 125 and 150 degreesC causes the phase pre-beta" to transform to the phase beta". An ageing temperature of 100 degreesC was found to be too low to initiate the transformation of pre-beta" to beta". (C) 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：789 / 796
页数：8
相关论文
共 50 条
  • [21] INFLUENCE OF LOW TEMPERATURE CLUSTERING ON STRENGTHENING PRECIPITATION IN Al-Mg-Si ALLOYS
    Poznak, Alex
    Sanders, Paul
    LIGHT METALS 2016, 2016, : 237 - 243
  • [22] Corrosion behaviour of AA6082 Al-Mg-Si alloy extrusion: Recrystallized and non-recrystallized structures
    Zhang, Xinxin
    Zhou, Xiaorong
    Nilsson, Jan-Olov
    Dong, Zehua
    Cai, Changrun
    CORROSION SCIENCE, 2018, 144 : 163 - 171
  • [23] Effect of low temperature stabilisation on the precipitation of a continuously cast Al-Mg-Si alloy
    Slamova, Margarita
    Janecek, Milos
    Cieslar, Miroslav
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2007, 462 (1-2): : 375 - 379
  • [24] Influence of Zr addition on precipitation evolution and performance of Al-Mg-Si alloy conductor
    Fu, Jiani
    Yang, Zhao
    Deng, Yunlai
    Wu, Yefeng
    Lu, Jianqi
    MATERIALS CHARACTERIZATION, 2020, 159
  • [25] Influence of Paint Baking Process on the Fracture Initiation of an Al-Mg-Si Alloy Sheet
    Gwak, S.
    Jang, I. J.
    Lee, J.
    Noh, W.
    Lee, M. G.
    Song, J. H.
    Jeong, C. Y.
    NUMISHEET 2018: 11TH INTERNATIONAL CONFERENCE AND WORKSHOP ON NUMERICAL SIMULATION OF 3D SHEET METAL FORMING PROCESSES, 2018, 1063
  • [26] Atomic bonding in interface of pre-β″ and β″ phase and properties of Al-Mg-Si alloy
    Gao, Ying-Jun
    Wei, Na
    Huang, Li-Lin
    Huang, Chuang-Gao
    Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals, 2013, 23 (04): : 919 - 926
  • [27] Influence of excess si on the morphology and thermal stability of metastable precipitates formed in an Al-Mg-Si alloy
    Fukui, Koichiro
    Takeda, Mahoto
    Endo, Takao
    JOURNAL OF THE JAPAN INSTITUTE OF METALS, 2006, 70 (08) : 715 - 719
  • [28] Influence of excess Si on the morphology and thermal stability of metastable precipitates formed in an Al-Mg-Si alloy
    Fukui, K
    Takeda, M
    Endo, T
    MATERIALS TRANSACTIONS, 2005, 46 (04) : 880 - 884
  • [29] Effect of aging time on microstructure evolution and corrosion behavior of an Al-Mg-Si alloy
    Zheng, Yaya
    Luo, Binghui
    He, Chuan
    Su, Yuelan
    MATERIALS RESEARCH EXPRESS, 2019, 6 (11):
  • [30] Early stages of solute clustering in an Al-Mg-Si alloy
    Liu, Meng
    Cizek, Jakub
    Chang, Cynthia S. T.
    Banhart, John
    ACTA MATERIALIA, 2015, 91 : 355 - 364
12345