Effect of trace Ag on the microstructure and precipitation of an Al-Cu-Mg alloy

被引：1
作者：
Zhang, L
Min, G
Yu, H
Feng, G
机构：
[1] S Campus Shandong Univ, Sch Mat Sci & Engn, Jinan 250061, Peoples R China
[2] Shandong Elect Power Res Inst, Jinan 250002, Peoples R China
来源：
INTERNATIONAL JOURNAL OF CAST METALS RESEARCH | 2006年 / 19卷 / 02期
关键词：
Al-Cu-Mg alloy; age hardening; co-cluster; precipitation;
D O I：
10.1179/136404606225023471
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
This paper investigated the effect of different amounts of Ag addition on the microstructure, properties and precipitation processes of Al-4(.)6Cu-6(.)9Mg(wt-%) alloy using various analytical methods. It was found that Ag addition stimulated new x' and V phases precipitated finely and dispersively in the matrix, as a result of Mg-Ag co-clusters; the volume fraction of precipitates increased with the content of Ag addition. Such precipitation improved the mechanical performance of the Al-Cu-Mg alloy significantly. The mechanism for the formation of new precipitates is also described in this paper.
引用
收藏
页码：134 / 136
页数：3
相关论文
共 12 条
  • [1] Early ageing mechanisms in a high-copper AlCuMg alloy
    Abis, S
    Massazza, M
    Mengucci, P
    Riontino, G
    [J]. SCRIPTA MATERIALIA, 2001, 45 (06) : 685 - 691
  • [2] THE STRUCTURE OF METASTABLE (111)(ALPHA) PRECIPITATES IN AN AL-2-CENTER-DOT-5 WT-PERCENT CU-1-CENTER-DOT-5 WT-PERCENT MG-0-CENTER-DOT-5 WT-PERCENT AG ALLOY
    CHOPRA, HD
    LIU, LJ
    MUDDLE, BC
    POLMEAR, IJ
    [J]. PHILOSOPHICAL MAGAZINE LETTERS, 1995, 71 (06) : 319 - 324
  • [3] DONG YS, 2000, ASTRONAUTIC MAT TECH, V2, P1
  • [4] Classification of the role of microalloying elements in phase decomposition of Al based alloys
    Hirosawa, S
    Sato, T
    Kamio, A
    Flower, HM
    [J]. ACTA MATERIALIA, 2000, 48 (08) : 1797 - 1806
  • [5] THE PRECIPITATE OMEGA-PHASE IN AL-CU-MG-AG ALLOYS
    MUDDLE, BC
    POLMEAR, IJ
    [J]. ACTA METALLURGICA, 1989, 37 (03): : 777 - 789
  • [6] Characterization of S (Al2CuMg) phase particles present in as-cast and annealed Al-Cu-Mg(-Li)-Ag alloys
    Mukhopadhyay, AK
    Rao, VVR
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1999, 268 (1-2): : 8 - 14
  • [7] ABNORMAL AGE HARDENING IN AN AL-CU-MG ALLOY CONTAINING SILVER AND LITHIUM
    POLMEAR, IJ
    CHESTER, RJ
    [J]. SCRIPTA METALLURGICA, 1989, 23 (07): : 1213 - 1218
  • [8] Microstructural evolution and age hardening in aluminium alloys: Atom probe field-ion microscopy and transmission electron microscopy studies
    Ringer, SP
    Hono, K
    [J]. MATERIALS CHARACTERIZATION, 2000, 44 (1-2) : 101 - 131
  • [9] Effect of additions of Si and Ag to ternary Al-Cu-Mg alloys in the alpha+S phase field
    Ringer, SP
    Polmear, IJ
    Sakurai, T
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1996, 217 : 273 - 276
  • [10] Cluster hardening in an aged Al-Cu-Mg alloy
    Ringer, SP
    Hono, K
    Sakurai, T
    Polmear, IJ
    [J]. SCRIPTA MATERIALIA, 1997, 36 (05) : 517 - 521
12