标题
作者
作者:Song, KQ (Song, K. Q.)[1,3 ]; Lu, ZC (Lu, Z. C.)[2,3 ]; Zhu, M (Zhu, M.)[1,3 ]; Hu, RZ (Hu, R. Z.)[1,3 ]; Zeng, MQ (Zeng, M. Q.)[1,3 ]
期刊信息
卷:
页:
DOI:
出版年:
文献类型:Article
摘要
Nanocomposite Al-Sn-based bearing alloys produced by mechanical alloying (MA) exhibit high hardness; however, their poor sintering density and ductility limit their wide spread application. Here, we present a strategy to produce a dual-scale structure in an Al-Sn-Si alloy consisting of coarse and ultrafine grains through a combination of conventional powder sintering and thermomechanical treatment. We found that severe deformation and the presence of an Al-Si eutectic mixture for sample induced abnormal grain growth of Al to create the dual-scale Al-Sn-Si alloy through annealing treatment. An optimum matching of ductility and strength, and optimum wear performance were achieved at annealing temperatures of 500 and 550 degrees C. Detailed investigation of the wear mechanism revealed that the combination of high strength and high ductility provided by the dual-scale structure is a key factor for the improvement of the wear properties. (C) 2017 Elsevier B.V. All rights reserved.
关键词
作者关键词:Mechanical alloying; Al-Sn-Si alloy; Dual-scale structure; Wear properties
作者信息
通讯作者地址:Zeng, MQ (通讯作者)
 | South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China. |
| South China Univ Technol, Sch Mech & Automot Engn, Guangzhou 510640, Guangdong, Peoples R China. |
地址:
出版商
类别分类
研究方向:Materials Science; Physics
Web of Science 类别:Materials Science, Coatings & Films; Physics, Applied