Influence of 1.0 wt% Li on precipitates in Al-Zn-Mg-Cu alloy

Fang Wei; Jinshan Li; Rui Hu; Hongchao Kou

doi:10.1016/S1000-9361(08)60175-2

Influence of 1.0 wt% Li on precipitates in Al-Zn-Mg-Cu alloy

Fang Wei, Jinshan Li, Rui Hu, Hongchao Kou

材料学院

Northwestern Polytechnical University Xian

科研成果: 期刊稿件 › 文章 › 同行评审

10 引用（Scopus）

摘要

Microstructure control always plays a key role in enhancing properties of high-strength Al alloys. Attempts to improve the micro-structure of 7000 series alloys by addition of 1.0 wt% Li have been made for a long time, but unsystematically. This article compares the microstructural features of 1.0 wt% Li-containing Al-Zn-Mg-Cu alloy with those of Li-free Al-Zn-Mg-Cu alloy by using differential scanning calorimetric (DSC) techniques, Vickers microhardness and transmission electron microscopy (TEM). The results show the dominance of Guinier Preston (GP) zones, η′or η phases in 1.0 wt% Li-containing Al-Zn-Mg-Cu alloy, and confirm the capability of Li to retard the rate of precipitates growth and coarsening.

源语言	英语
页（从-至）	565-570
页数	6
期刊	Chinese Journal of Aeronautics
卷	21
期	6
DOI	https://doi.org/10.1016/S1000-9361(08)60175-2
出版状态	已出版 - 12月 2008

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10.1016/S1000-9361(08)60175-2

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title = "Influence of 1.0 wt% Li on precipitates in Al-Zn-Mg-Cu alloy",

abstract = "Microstructure control always plays a key role in enhancing properties of high-strength Al alloys. Attempts to improve the micro-structure of 7000 series alloys by addition of 1.0 wt% Li have been made for a long time, but unsystematically. This article compares the microstructural features of 1.0 wt% Li-containing Al-Zn-Mg-Cu alloy with those of Li-free Al-Zn-Mg-Cu alloy by using differential scanning calorimetric (DSC) techniques, Vickers microhardness and transmission electron microscopy (TEM). The results show the dominance of Guinier Preston (GP) zones, η′or η phases in 1.0 wt% Li-containing Al-Zn-Mg-Cu alloy, and confirm the capability of Li to retard the rate of precipitates growth and coarsening.",

keywords = "Al-zn-mg-cu-li, Alloys, DSC, Microhardness, Precipitates, TEM",

author = "Fang Wei and Jinshan Li and Rui Hu and Hongchao Kou",

year = "2008",

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doi = "10.1016/S1000-9361(08)60175-2",

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TY - JOUR

T1 - Influence of 1.0 wt% Li on precipitates in Al-Zn-Mg-Cu alloy

AU - Wei, Fang

AU - Li, Jinshan

AU - Hu, Rui

AU - Kou, Hongchao

PY - 2008/12

Y1 - 2008/12

N2 - Microstructure control always plays a key role in enhancing properties of high-strength Al alloys. Attempts to improve the micro-structure of 7000 series alloys by addition of 1.0 wt% Li have been made for a long time, but unsystematically. This article compares the microstructural features of 1.0 wt% Li-containing Al-Zn-Mg-Cu alloy with those of Li-free Al-Zn-Mg-Cu alloy by using differential scanning calorimetric (DSC) techniques, Vickers microhardness and transmission electron microscopy (TEM). The results show the dominance of Guinier Preston (GP) zones, η′or η phases in 1.0 wt% Li-containing Al-Zn-Mg-Cu alloy, and confirm the capability of Li to retard the rate of precipitates growth and coarsening.

AB - Microstructure control always plays a key role in enhancing properties of high-strength Al alloys. Attempts to improve the micro-structure of 7000 series alloys by addition of 1.0 wt% Li have been made for a long time, but unsystematically. This article compares the microstructural features of 1.0 wt% Li-containing Al-Zn-Mg-Cu alloy with those of Li-free Al-Zn-Mg-Cu alloy by using differential scanning calorimetric (DSC) techniques, Vickers microhardness and transmission electron microscopy (TEM). The results show the dominance of Guinier Preston (GP) zones, η′or η phases in 1.0 wt% Li-containing Al-Zn-Mg-Cu alloy, and confirm the capability of Li to retard the rate of precipitates growth and coarsening.

KW - Al-zn-mg-cu-li

KW - Alloys

KW - DSC

KW - Microhardness

KW - Precipitates

KW - TEM

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U2 - 10.1016/S1000-9361(08)60175-2

DO - 10.1016/S1000-9361(08)60175-2

M3 - 文章

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SN - 1000-9361

VL - 21

SP - 565

EP - 570

JO - Chinese Journal of Aeronautics

JF - Chinese Journal of Aeronautics

IS - 6

ER -

Influence of 1.0 wt% Li on precipitates in Al-Zn-Mg-Cu alloy

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