7475-T761航空铝合金的物相分析

Mao Hua Li; Yan Qing Yang; Chang Ping Tang; Zhi Long Chen; Jia Xuan Mo

doi:10.13289/j.issn.1009-6264.2021-0137

7475-T761航空铝合金的物相分析

Translated title of the contribution: Phase analysis of 7475-T761 aviation aluminum alloy

Mao Hua Li
, Yan Qing Yang
, Chang Ping Tang
, Zhi Long Chen
, Jia Xuan Mo

School of Materials Sience and Engineering

Hunan University of Science and Technology

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

2 Scopus citations

Abstract

Microstructure of 7475-T761 aviation aluminum alloy was studied by means of transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), selective area electron diffraction (SAED), micro beam diffraction (μ-D), high resolution transmission electron microscopy (HRTEM) and high angle annular dark field scanning transmission electron microscopy (HAADF-STEM). The results show that the microstructure of the 7475-T761 aluminum alloy is mainly composed of dispersed phase, aging strengthening phase and impurity phase. The dispersed phase is E phase (Al₁₈Cr₂Mg₃) with various morphology, and the η phase is easy to precipitate inhomogeneously at the E/Al interface. The aging strengthening phases are mainly composed of GPⅡ zones, η' phase and η phase. The impurity phases are mainly composed of Al₇Cu₂Fe, FeAl₃ and Si-rich phases.

Translated title of the contribution	Phase analysis of 7475-T761 aviation aluminum alloy
Original language	Chinese (Traditional)
Pages (from-to)	68-75
Number of pages	8
Journal	Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
Volume	42
Issue number	9
DOIs	https://doi.org/10.13289/j.issn.1009-6264.2021-0137
State	Published - 25 Sep 2021

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title = "7475-T761航空铝合金的物相分析",

abstract = "Microstructure of 7475-T761 aviation aluminum alloy was studied by means of transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), selective area electron diffraction (SAED), micro beam diffraction (μ-D), high resolution transmission electron microscopy (HRTEM) and high angle annular dark field scanning transmission electron microscopy (HAADF-STEM). The results show that the microstructure of the 7475-T761 aluminum alloy is mainly composed of dispersed phase, aging strengthening phase and impurity phase. The dispersed phase is E phase (Al18Cr2Mg3) with various morphology, and the η phase is easy to precipitate inhomogeneously at the E/Al interface. The aging strengthening phases are mainly composed of GPⅡ zones, η' phase and η phase. The impurity phases are mainly composed of Al7Cu2Fe, FeAl3 and Si-rich phases.",

keywords = "7475 aluminum alloy, Aging strengthening phase, Dispersed phase, Impurity phase",

author = "Li, \{Mao Hua\} and Yang, \{Yan Qing\} and Tang, \{Chang Ping\} and Chen, \{Zhi Long\} and Mo, \{Jia Xuan\}",

year = "2021",

month = sep,

day = "25",

doi = "10.13289/j.issn.1009-6264.2021-0137",

language = "繁体中文",

volume = "42",

pages = "68--75",

journal = "Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment",

issn = "1009-6264",

publisher = "Chinese Mechanical Engineering Society",

number = "9",

}

TY - JOUR

T1 - 7475-T761航空铝合金的物相分析

AU - Li, Mao Hua

AU - Yang, Yan Qing

AU - Tang, Chang Ping

AU - Chen, Zhi Long

AU - Mo, Jia Xuan

PY - 2021/9/25

Y1 - 2021/9/25

N2 - Microstructure of 7475-T761 aviation aluminum alloy was studied by means of transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), selective area electron diffraction (SAED), micro beam diffraction (μ-D), high resolution transmission electron microscopy (HRTEM) and high angle annular dark field scanning transmission electron microscopy (HAADF-STEM). The results show that the microstructure of the 7475-T761 aluminum alloy is mainly composed of dispersed phase, aging strengthening phase and impurity phase. The dispersed phase is E phase (Al18Cr2Mg3) with various morphology, and the η phase is easy to precipitate inhomogeneously at the E/Al interface. The aging strengthening phases are mainly composed of GPⅡ zones, η' phase and η phase. The impurity phases are mainly composed of Al7Cu2Fe, FeAl3 and Si-rich phases.

AB - Microstructure of 7475-T761 aviation aluminum alloy was studied by means of transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), selective area electron diffraction (SAED), micro beam diffraction (μ-D), high resolution transmission electron microscopy (HRTEM) and high angle annular dark field scanning transmission electron microscopy (HAADF-STEM). The results show that the microstructure of the 7475-T761 aluminum alloy is mainly composed of dispersed phase, aging strengthening phase and impurity phase. The dispersed phase is E phase (Al18Cr2Mg3) with various morphology, and the η phase is easy to precipitate inhomogeneously at the E/Al interface. The aging strengthening phases are mainly composed of GPⅡ zones, η' phase and η phase. The impurity phases are mainly composed of Al7Cu2Fe, FeAl3 and Si-rich phases.

KW - 7475 aluminum alloy

KW - Aging strengthening phase

KW - Dispersed phase

KW - Impurity phase

UR - https://www.scopus.com/pages/publications/85118473038

U2 - 10.13289/j.issn.1009-6264.2021-0137

DO - 10.13289/j.issn.1009-6264.2021-0137

M3 - 文章

AN - SCOPUS:85118473038

SN - 1009-6264

VL - 42

SP - 68

EP - 75

JO - Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment

JF - Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment

IS - 9

ER -

7475-T761航空铝合金的物相分析

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