HRTEM observation of precipitates in Al-Mg-Si alloy containing copper at early stage during aging

被引:2
作者
Kido, K
Matsuda, K
Kawabata, T
Sato, T
Ikeno, S
机构
[1] Toyama Univ, Fac Engn, Toyama 9308555, Japan
[2] Tokyo Inst Technol, Fac Engn, Meguro Ku, Tokyo 1528552, Japan
来源
ALUMINUM ALLOYS 2002: THEIR PHYSICAL AND MECHANICAL PROPERTIES PTS 1-3 | 2002年 / 396-4卷
关键词
Al-Mg-Si-Cu alloy; high-resolution transmission electron microscopy; precipitate; GP zones;
D O I
10.4028/www.scientific.net/MSF.396-402.953
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Precipitates in A1-1.0mass%Mg2Si-0.5mass%Cu alloy aged at 423 K were observed by high-resolution transmission electron microscope (HRTEM) in order to investigate the effect of Cu addition on precipitation sequence of Al-Mg-Si alloys. There was a precipitate, which has different morphology from normal metastable phases in Al-Mg-Si alloys. It was a thin lath- or needle-shaped precipitate and not classified with a normal needle-shaped precipitate in Al-Mg-Si alloys.
引用
收藏
页码:953 / 957
页数:5
相关论文
共 6 条
[1]  
CAYLON C, 2000, ACTA MAT, V48, P2639
[2]  
COLLINS DLW, 1957, J I MET, V86, P325
[3]   AN ELECTRON-MICROSCOPE STUDY OF GP ZONES AND THETA'-PHASE IN AL-1.6 AT PERCENT-CU CRYSTALS [J].
FUJITA, H ;
LU, C .
MATERIALS TRANSACTIONS JIM, 1992, 33 (10) :892-896
[4]   High resolution transmission electron microscopy of precipitate microstructures of two-step aged Al-1.6%Mg2Si alloy [J].
Matsuda, K ;
Yoshida, T ;
Gamada, H ;
Fujii, K ;
Uetani, Y ;
Sato, T ;
Kamio, A ;
Ikeno, S .
JOURNAL OF THE JAPAN INSTITUTE OF METALS, 1998, 62 (02) :133-139
[5]   Metastable phases in an Al-Mg-Si alloy containing copper [J].
Matsuda, K ;
Uetani, Y ;
Sato, T ;
Ikeno, S .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2001, 32 (06) :1293-1299
[6]   Effects of Cu content and preaging on precipitation characteristics in aluminum alloy 6022 [J].
Miao, WF ;
Laughlin, DE .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2000, 31 (02) :361-371