Microstructural characterization and wear behavior of in situ TiC/7075 composites synthesized by displacement reactions and spray forming
文献类型：期刊论文
| 作者 | B. Yang ; G. S. Gan ; L. Yang ; M. Sun ; H. B. Zhang ; Z. Z. Fang |
| 刊名 | Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
 |
| 出版日期 | 2011 |
| 卷号 | 528期号:18页码:5649-5655 |
| 关键词 | Microstructure In situ synthesis TiC particle 7075 Al matrix alloy Wear resistance matrix composites aluminum alloys al4c3 |
| ISSN号 | 0921-5093 |
| 中文摘要 | A novel in situ reaction technique is developed to prepare TiC/7075 composites. This technique provides a new approach overcoming the problems of loss and agglomeration of reinforcement particles when they are in situ formed in a molten metal first and then injected into the spray cone of molten droplets during the spray forming process. Experimental results have shown that the presence of strip or rectangular-like Al(3)Ti, which is detrimental not only to the fracture toughness, but also to the stability of the microstructure, can be avoided completely from the final product by using a proper Ti:C molar ratio in the Ti-C-Al performs. The mechanisms of formation or absence of Al(3)Ti phase in the TiC/7075 composites are explained based on thermodynamics of the system. The modification of the microstructure of the spray-formed 7075 alloy can be understood in the light of atomic diffusion. The wear results showed that the wear rates of the spray-formed 7075 alloy and its composites increased with applied loads. At higher applied loads, the 7075 alloy exhibited superior wear resistance than that of the composites. This is attributed to increased microcracking tendency of the composites than the matrix alloy. (C) 2011 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/30817]  |
| 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 | B. Yang,G. S. Gan,L. Yang,et al. Microstructural characterization and wear behavior of in situ TiC/7075 composites synthesized by displacement reactions and spray forming[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2011,528(18):5649-5655. |
| APA | B. Yang,G. S. Gan,L. Yang,M. Sun,H. B. Zhang,&Z. Z. Fang.(2011).Microstructural characterization and wear behavior of in situ TiC/7075 composites synthesized by displacement reactions and spray forming.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,528(18),5649-5655. |
| MLA | B. Yang,et al."Microstructural characterization and wear behavior of in situ TiC/7075 composites synthesized by displacement reactions and spray forming".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 528.18(2011):5649-5655. |
入库方式： OAI收割
来源：金属研究所
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