Correlation between bulk and precipitate composition in Al-Zn-Mg-Cu alloys

IF 1.2 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Philosophical Magazine Letters Pub Date : 2021-11-11 DOI:10.1080/09500839.2021.1998690

Y. Zou, Xiaodong Wu, Songbai Tang, Qianqian Zhu, Hui Song, M. Guo, Ling-fei Cao

引用次数: 5

Abstract

ABSTRACT The composition of precipitates in peak-aged Al-Zn-Mg-Cu alloys with various Zn/Mg ratios has been investigated by atom probe tomography (APT). The results show that the η′ and the T′ phases have different compositions with a similar Zn/Mg ratio in the same alloy. The Zn/Mg ratio within precipitates was shown to be positively correlated with the Zn/Mg ratio in the alloy. Moreover, the size dependency of composition for ageing precipitates in Al-Zn-Mg-Cu alloys has been determined. This study enriches the understanding of precipitate composition relative to that of the bulk in Al-Zn-Mg-Cu alloys.

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Al-Zn-Mg-Cu合金中体积和沉淀成分的相关性

摘要用原子探针层析成像（APT）研究了不同Zn/Mg比的峰值时效Al-Zn-Mg-Cu合金中沉淀物的组成。结果表明，在同一合金中，η′和T′相的组成不同，Zn/Mg比例相近。沉淀物中的Zn/Mg比率与合金中的Zn-Mg比率呈正相关。此外，还测定了Al-Zn-Mg-Cu合金中时效析出物成分的尺寸依赖性。这一研究丰富了对Al-Zn-Mg-Cu合金中沉淀成分相对于本体成分的理解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Philosophical Magazine Letters 物理-物理：凝聚态物理

CiteScore

2.60

自引率

0.00%

发文量

审稿时长

2.7 months

期刊介绍： Philosophical Magazine Letters is the rapid communications part of the highly respected Philosophical Magazine, which was first published in 1798. Its Editors consider for publication short and timely contributions in the field of condensed matter describing original results, theories and concepts relating to the structure and properties of crystalline materials, ceramics, polymers, glasses, amorphous films, composites and soft matter. Articles emphasizing experimental, theoretical and modelling studies on solids, especially those that interpret behaviour on a microscopic, atomic or electronic scale, are particularly appropriate. Manuscripts are considered on the strict condition that they have been submitted only to Philosophical Magazine Letters , that they have not been published already, and that they are not under consideration for publication elsewhere.