Microstructure of as-cast and homogenized 1973 aluminum alloy

Zheng An Wang; Ming Pu Wang; Wen Chao Yang; Qian Zhang; Xiao Fei Sheng; Zhou Li

Microstructure of as-cast and homogenized 1973 aluminum alloy

Zheng An Wang
, Ming Pu Wang
, Wen Chao Yang
, Qian Zhang
, Xiao Fei Sheng
, Zhou Li

Central South University

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

The microstructure and the composition distribution of as-cast and homogenized 1973 alloy were studied by means of optical micrograph, scanning electron micrograph, X-ray diffractometry and DSC. The as-cast microstructure and the homogenizing temperatures of the alloy were determined. The results show that the as-cast microstructure is dendrite structure. It mainly consists of α-Al, MgZn₂ (η) phase and Al₂CuMg (S) phase, and Al₁₃(FeCu)₄ phases were also observed. The η phase (MgZn₂) dissolves aluminum and copper, and Al₂CuMg phase shows solubility of zinc. The proper homogenizing process of this alloy is at 470°C for 24 h. After homogenization, η phase and S phase dissolve almost into the matrix, leaving a small amount Al₁₃(FeCu)₄ phase and Al₇Cu₂Fe phases only. A large number of Al₃Zr phases with spheric shape were also observed, dispersing inside grains.

Original language	English
Pages (from-to)	56-63
Number of pages	8
Journal	Cailiao Gongcheng/Journal of Materials Engineering
Issue number	5
State	Published - May 2010
Externally published	Yes

Keywords

Al-Zn-Mg-Cu alloy
Homogenization
Microstructure

Cite this

@article{35be8cc2b24e423296a267274e6666bf,

title = "Microstructure of as-cast and homogenized 1973 aluminum alloy",

abstract = "The microstructure and the composition distribution of as-cast and homogenized 1973 alloy were studied by means of optical micrograph, scanning electron micrograph, X-ray diffractometry and DSC. The as-cast microstructure and the homogenizing temperatures of the alloy were determined. The results show that the as-cast microstructure is dendrite structure. It mainly consists of α-Al, MgZn2 (η) phase and Al2CuMg (S) phase, and Al13(FeCu)4 phases were also observed. The η phase (MgZn2) dissolves aluminum and copper, and Al2CuMg phase shows solubility of zinc. The proper homogenizing process of this alloy is at 470°C for 24 h. After homogenization, η phase and S phase dissolve almost into the matrix, leaving a small amount Al13(FeCu)4 phase and Al7Cu2Fe phases only. A large number of Al3Zr phases with spheric shape were also observed, dispersing inside grains.",

keywords = "Al-Zn-Mg-Cu alloy, Homogenization, Microstructure",

author = "Wang, \{Zheng An\} and Wang, \{Ming Pu\} and Yang, \{Wen Chao\} and Qian Zhang and Sheng, \{Xiao Fei\} and Zhou Li",

year = "2010",

month = may,

language = "英语",

pages = "56--63",

journal = "Cailiao Gongcheng/Journal of Materials Engineering",

issn = "1001-4381",

publisher = "Science Press ",

number = "5",

}

TY - JOUR

T1 - Microstructure of as-cast and homogenized 1973 aluminum alloy

AU - Wang, Zheng An

AU - Wang, Ming Pu

AU - Yang, Wen Chao

AU - Zhang, Qian

AU - Sheng, Xiao Fei

AU - Li, Zhou

PY - 2010/5

Y1 - 2010/5

N2 - The microstructure and the composition distribution of as-cast and homogenized 1973 alloy were studied by means of optical micrograph, scanning electron micrograph, X-ray diffractometry and DSC. The as-cast microstructure and the homogenizing temperatures of the alloy were determined. The results show that the as-cast microstructure is dendrite structure. It mainly consists of α-Al, MgZn2 (η) phase and Al2CuMg (S) phase, and Al13(FeCu)4 phases were also observed. The η phase (MgZn2) dissolves aluminum and copper, and Al2CuMg phase shows solubility of zinc. The proper homogenizing process of this alloy is at 470°C for 24 h. After homogenization, η phase and S phase dissolve almost into the matrix, leaving a small amount Al13(FeCu)4 phase and Al7Cu2Fe phases only. A large number of Al3Zr phases with spheric shape were also observed, dispersing inside grains.

AB - The microstructure and the composition distribution of as-cast and homogenized 1973 alloy were studied by means of optical micrograph, scanning electron micrograph, X-ray diffractometry and DSC. The as-cast microstructure and the homogenizing temperatures of the alloy were determined. The results show that the as-cast microstructure is dendrite structure. It mainly consists of α-Al, MgZn2 (η) phase and Al2CuMg (S) phase, and Al13(FeCu)4 phases were also observed. The η phase (MgZn2) dissolves aluminum and copper, and Al2CuMg phase shows solubility of zinc. The proper homogenizing process of this alloy is at 470°C for 24 h. After homogenization, η phase and S phase dissolve almost into the matrix, leaving a small amount Al13(FeCu)4 phase and Al7Cu2Fe phases only. A large number of Al3Zr phases with spheric shape were also observed, dispersing inside grains.

KW - Al-Zn-Mg-Cu alloy

KW - Homogenization

KW - Microstructure

UR - https://www.scopus.com/pages/publications/77953633344

M3 - 文章

AN - SCOPUS:77953633344

SN - 1001-4381

SP - 56

EP - 63

JO - Cailiao Gongcheng/Journal of Materials Engineering

JF - Cailiao Gongcheng/Journal of Materials Engineering

IS - 5

ER -

Microstructure of as-cast and homogenized 1973 aluminum alloy

Abstract

Keywords

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