Processing, Microstructure, and Mechanical Properties of Large Spray-Deposited Hypoeutectic Al-Si Alloy Tubular Preform

被引：0
|
作者：
Zhigang Chen
Zhenhua Chen
Guoning Tang
机构：
[1] Hunan University of Science and Technology,College of Electromechanical Engineering
[2] Hunan University,College of Materials Science and Engineering
来源：
Journal of Materials Engineering and Performance | 2011年 / 20卷
关键词：
Al-Si alloy; densification; large-scale tube; spray deposition; wedge pressing;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this study, a large-scale hypoeutectic Al-Si alloy tubular preform was synthesized by spray-deposition technique and then subjected to a densification processing, wedge pressing (WP). Microstructure and mechanical properties of the as-sprayed and as-secondary processed tube were investigated. The experimental results show that the spray-deposited preform is a coalesced bulk consisting of atomized particles, porosity, and matrix alloy with modified microstructure. The mechanical properties of the porous spray deposits can be substantially improved after WP and subsequent heat treatment due to effective densification and improvements of microstructure.
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页码：238 / 243
页数：5
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