Precipitates evolution of the AA7075-H18 alloy sheet during the application of the solution heat treatment process

被引：9

作者：

Wang, Gang ^{[1
]}

Gu, Zhengwei ^{[1
]}

Yu, Ge ^{[1
]}

Li, Xin ^{[1
]}

机构：

[1] Jilin Univ, Coll Mat Sci & Engn, Key Lab Automobile Mat, Changchun 130022, Peoples R China

来源：

MATERIALS LETTERS | 2022年 / 318卷

关键词：

Metals and alloys; Microstructure; Phase transformation; Solution treatment; MECHANICAL-PROPERTIES; ZN; PARTICLES;

D O I：

10.1016/j.matlet.2022.132230

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The hot stamping technology of the high-strength aluminum alloy sheet has attracted increased attention from both the scientific community and industry due to the rapidly growing demand for lightweight automobiles. However, the development of a proper solution process suitable for the hot stamping technique remains a great challenge. Along these lines, in this work, the precipitates evolution of the AA7075-H18 alloy sheet with a thickness of 2 mm during the implementation of the solution process was systematically studied. The insoluble particles (i.e., Al23CuFe4 and Mg2Si) and the soluble particles (eta-MgZn2) were clearly identified from the aluminum matrix. Moreover, the transformation sequence during the solution heat treatment was determined, and a reasonable solution temperature window was also established.

引用

页数：3

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