Effect of friction stir processing on the microstructure of cast A356 aluminum
文献类型：期刊论文
| 作者 | Z. Y. Ma ; S. R. Sharma ; R. S. Mishra |
| 刊名 | Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
 |
| 出版日期 | 2006 |
| 卷号 | 433期号:1-2页码:269-278 |
| 关键词 | friction stir processing A356 microstructural modification casting strain rate superplasticity si-mg alloys mechanical-properties fatigue behavior heat-treatment strength particles welds |
| ISSN号 | 0921-5093 |
| 中文摘要 | Friction stir processing (FSP) was applied to cast A356 Al to modify the as-cast microstructure. FSP homogenizes and. refines the cast microstruclure, completely eliminates porosity, and creates a microstructure with fine Si particles (0.25-0.42 mu m) distributed in a fine grain aluminum matrix (3-4 mu m). Further, FSP parameters significantly influence microstructural development in the processed zone of cast A356 Al. Generally, higher tool rotation rate creates a more homogeneous microstructure. At lower tool rotation rates, a macroscopically visible banded structure characterized by a low density of coarse particles, was detected in the nugget zone. However, FSP parameters did not significantly influence the Al matrix grain size. The varied distribution pattern, size, and volume fraction of Si particles at different locations within the FSP zone indicates inhomogeneous material flow. A post-FSP T6 heat treatment did not alter the Si particle distribution, but did significantly coarsen the Si particles. (c) 2006 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34398]  |
| 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 | Z. Y. Ma,S. R. Sharma,R. S. Mishra. Effect of friction stir processing on the microstructure of cast A356 aluminum[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2006,433(1-2):269-278. |
| APA | Z. Y. Ma,S. R. Sharma,&R. S. Mishra.(2006).Effect of friction stir processing on the microstructure of cast A356 aluminum.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,433(1-2),269-278. |
| MLA | Z. Y. Ma,et al."Effect of friction stir processing on the microstructure of cast A356 aluminum".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 433.1-2(2006):269-278. |
入库方式： OAI收割
来源：金属研究所
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