A Transient Thermal Model for Friction Stir Weld. Part I: The Model
文献类型：期刊论文
| 作者 | X. X. Zhang ; B. L. Xiao ; Z. Y. Ma |
| 刊名 | Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science
 |
| 出版日期 | 2011 |
| 卷号 | 42A期号:10页码:3218-3228 |
| ISSN号 | 1073-5623 |
| 关键词 | material flow 3-dimensional heat fem model aluminum parameters microstructure temperature simulation history tool |
| 中文摘要 | Current analytical thermal models for friction stir welding (FSW) are mainly focused on the steady-state condition. To better understand the FSW process, we propose a transient thermal model for FSW, which considers all the periods of FSW. A temperature-dependent apparent friction coefficient solved by the inverse solution method (ISM) is used to estimate the heat generation rate. The physical reasonableness, self-consistency, and relative achievements of this model are discussed, and the relationships between the heat generation, friction coefficient, and temperature are established. The negative feedback mechanism and positive feedback mechanism are proposed for the first time and found to be the dominant factors in controlling the friction coefficient, heat generation, and in turn the temperature. Furthermore, the negative feedback mechanism is found to be the controller of the steady-state level of FSW. The validity of the proposed model is proved by applying it to FSW of the 6061-T651 and 6063-T5 aluminum alloys. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/30924]  |
| 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 | X. X. Zhang,B. L. Xiao,Z. Y. Ma. A Transient Thermal Model for Friction Stir Weld. Part I: The Model[J]. Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science,2011,42A(10):3218-3228. |
| APA | X. X. Zhang,B. L. Xiao,&Z. Y. Ma.(2011).A Transient Thermal Model for Friction Stir Weld. Part I: The Model.Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science,42A(10),3218-3228. |
| MLA | X. X. Zhang,et al."A Transient Thermal Model for Friction Stir Weld. Part I: The Model".Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science 42A.10(2011):3218-3228. |
入库方式： OAI收割
来源：金属研究所
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