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

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 - http://www.scopus.com/inward/record.url?scp=85118473038&partnerID=8YFLogxK

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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