Improved solution treatment for an as-rolled Al-Zn-Mg-Cu alloy. Part II. Microstructure and mechanical properties
文献类型：期刊论文
| 作者 | D. K. Xu ; P. A. Rometsch ; N. Birbilis |
| 刊名 | Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
 |
| 出版日期 | 2012 |
| 卷号 | 534页码:244-252 |
| 关键词 | Solution treatment Constituent particle Dissolution kinetics Recrystallisation AA7150 aluminum-alloys fracture-toughness heat-treatment process model si-cu precipitation behavior strength dissolution cracking |
| ISSN号 | 0921-5093 |
| 中文摘要 | In this work, improved solution treatments and their effects on the microstructure and mechanical properties of as-rolled Al-6.222n-2.11Mg-2.39Cu alloy have been investigated. By exploring the dissolution process of soluble constituent particles and monitoring changes in the grain structure, a solution treatment sequence with a good balance between a minimum volume fraction of remaining constituents and a partially recrystallised grain structure has been obtained. The results indicate that MgZn2 (eta) particles can be completely dissolved after holding at 475 degrees C for only 5 min, whereas the dissolution of Al2CuMg (S) particles is relatively difficult and their complete dissolution requires a stepped solution treatment. By conducting a final solution treatment step at an increased temperature of 495 degrees C, all the S-phase particles can be dissolved, whereas the recrystallised fraction can still be controlled to be less than 50%. After retrogression and re-ageing (RRA), samples subjected to a final-stage solution treatment at 495 degrees C have a relatively higher volume fraction of eta' and eta precipitates and can therefore have better mechanical properties. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2013-02-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/60363]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | D. K. Xu,P. A. Rometsch,N. Birbilis. Improved solution treatment for an as-rolled Al-Zn-Mg-Cu alloy. Part II. Microstructure and mechanical properties[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2012,534:244-252. |
| APA | D. K. Xu,P. A. Rometsch,&N. Birbilis.(2012).Improved solution treatment for an as-rolled Al-Zn-Mg-Cu alloy. Part II. Microstructure and mechanical properties.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,534,244-252. |
| MLA | D. K. Xu,et al."Improved solution treatment for an as-rolled Al-Zn-Mg-Cu alloy. Part II. Microstructure and mechanical properties".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 534(2012):244-252. |
入库方式： OAI收割
来源：金属研究所
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