Flow stress behavior of porous FVS0812 aluminum alloy during hot-compression

被引：34
|
作者：
Zhan, MY [1 ]
Chen, ZH [1 ]
Zhang, H [1 ]
Xia, WJ [1 ]
机构：
[1] Hunan Univ, Sch Mat Sci & Engn, Changsha 410082, Peoples R China
来源：
MECHANICS RESEARCH COMMUNICATIONS | 2006年 / 33卷 / 04期
关键词：
spray deposition; FVS0812 aluminum alloy; hot-compression deformation; flow stress;
D O I：
10.1016/j.mechrescom.2005.05.008
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The hot deformation behavior of porous FVS0812 aluminum alloy prepared by spray deposition was studied by means of compression tests on a Gleeble 1500 machine. The samples were hot compressed at temperatures ranging from 573 K to 773 K under various true strain rates of 10(-4)-10(0) s(-1). The deformation behaviors are characterized by a significant strain hardening during hot-compression due to the progressive compaction of the pores with increasing compressive strain. A revised formula describing the relationships of the flow stress, strain rate and temperature of the porous alloy at elevated temperatures is proposed by compensation of strain. The theoretical predictions are compared with experimental results, which show good agreement. (C) 2005 Published by Elsevier Ltd.
引用
收藏
页码：508 / 514
页数：7
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