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
  • [1] Phase Selection in 6082 Al-Mg-Si AlloysAusscheidungen in 6082 Al-Mg-Si Legierungen
    Alexander Wimmer
    Jiehua Lee
    Peter Schumacher
    BHM Berg- und Hüttenmännische Monatshefte, 2012, 157 (8-9) : 301 - 305
  • [2] Effect of Temperature and Frequency on the Viscoelastic Behavior of Commercial 6082 (Al-Mg-Si) Alloy
    Rojas, Jose I.
    Contel, Alejandro
    Crespo, Daniel
    SAE INTERNATIONAL JOURNAL OF MATERIALS AND MANUFACTURING, 2024, 17 (04)
  • [3] Atomic model for GP-zones in a 6082 Al-Mg-Si system
    Marioara, CD
    Andersen, SJ
    Jansen, J
    Zandbergen, HW
    ACTA MATERIALIA, 2001, 49 (02) : 321 - 328
  • [4] Effect of room temperature storage time on precipitation in Al-Mg-Si(-Cu) alloys with different Mg/Si ratios
    Wenner, Sigurd
    Marioara, Calin Daniel
    Andersen, Sigmund Jarle
    Holmestad, Randi
    INTERNATIONAL JOURNAL OF MATERIALS RESEARCH, 2012, 103 (08) : 948 - 954
  • [5] Intergranular corrosion of AA6082 Al-Mg-Si alloy extrusion: The influence of trace Cu and grain boundary misorientation
    Zhang, Xinxin
    Lv, You
    Hashimoto, Teruo
    Nilsson, Jan-Olov
    Zhou, Xiaorong
    JOURNAL OF ALLOYS AND COMPOUNDS, 2021, 853
  • [6] Influence of starting temperature on differential scanning calorimetry measurements of an Al-Mg-Si alloy
    Pogatscher, S.
    Antrekowitsch, H.
    Uggowitzer, P. J.
    MATERIALS LETTERS, 2013, 100 : 163 - 165
  • [7] PRECIPITATION SEQUENCE OF AN AGED Al-Mg-Si ALLOY
    Fang, X.
    Song, M.
    Li, K.
    Du, Y.
    JOURNAL OF MINING AND METALLURGY SECTION B-METALLURGY, 2010, 46 (02) : 171 - 180
  • [8] Localized corrosion behaviour of AA6082-T6 Al-Mg-Si alloy: The influence of near-surface deformed layer
    Meng, Xiangzhe
    Li, Yanyan
    Lv, You
    Dong, Zehua
    Zhang, Xinxin
    CORROSION SCIENCE, 2024, 230
  • [9] Influence of cold deformation on the aging behavior of the Al-Mg-Si alloy
    Aouabdia, Y.
    Amiour, L.
    Boubertakh, A.
    JOURNAL OF NEW TECHNOLOGY AND MATERIALS, 2019, 9 (02) : 28 - 34
  • [10] Dispersoids in Al-Mg-Si Alloy AA 6086 Modified by Sc and Y
    Zupanic, Franc
    Zist, Sandi
    Albu, Mihaela
    Letofsky-Papst, Ilse
    Burja, Jaka
    Voncina, Maja
    Boncina, Tonica
    MATERIALS, 2023, 16 (08)
12345