Inhomogeneous microstructure and mechanical properties of friction stir processed NiAl bronze
文献类型：期刊论文
| 作者 | D. R. Ni ; P. Xue ; D. Wang ; B. L. Xiao ; Z. Y. Ma |
| 刊名 | Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
 |
| 出版日期 | 2009 |
| 卷号 | 524期号:1-2页码:119-128 |
| 关键词 | Friction stir processing Bronze Microstructure Mechanical properties nickel-aluminum-bronze nugget zone mg alloy recrystallization welds evolution corrosion flow |
| ISSN号 | 0921-5093 |
| 中文摘要 | As-cast Cu-9Al-4.5Ni-4Fe NiAl bronze (NAB) alloy was subjected to friction stir processing (FSP) in a wide range of tool rotation rates of 800-2000 rpm and traverse speeds of 50-200 mm/min. After FSP, the initial coarse microstructure of the as-cast NAB was transformed to fine structure, and the porosity defects were eliminated. However, the stir zones were characterized by inhomogeneous structure and could be divided into four regions: fine Widmanstatten primary alpha phase in the surface layer, banded primary alpha and beta' phases in the subsurface layer, equiaxed alpha and beta' phases in the center, and streamlike alpha and beta' phases at the bottom. The heterogeneous microstructure could be alleviated by adjusting the FSP parameters, but could not be completely eliminated under investigated FSP parameters. The FSP NAB exhibited significantly improved hardness, tensile strength, and ductility compared to the base metal. When the NAB was subjected to two pass FSP, its microstructure was further homogenized, resulting in apparently increased ductility with similar hardness and tensile strength. (C) 2009 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/321006/32217]  |
| 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. R. Ni,P. Xue,D. Wang,et al. Inhomogeneous microstructure and mechanical properties of friction stir processed NiAl bronze[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2009,524(1-2):119-128. |
| APA | D. R. Ni,P. Xue,D. Wang,B. L. Xiao,&Z. Y. Ma.(2009).Inhomogeneous microstructure and mechanical properties of friction stir processed NiAl bronze.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,524(1-2),119-128. |
| MLA | D. R. Ni,et al."Inhomogeneous microstructure and mechanical properties of friction stir processed NiAl bronze".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 524.1-2(2009):119-128. |
入库方式： OAI收割
来源：金属研究所
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