Development of ultrafine grained Al-Mg-Si alloy with enhanced strength and ductility

被引：49
|
作者：
Panigrahi, Sushanta Kumar [1 ]
Jayaganthan, R. [1 ]
机构：
[1] Indian Inst Technol Roorkee, Dept Met & Mat Engn, Roorkee 247667, Uttar Pradesh, India
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 470卷 / 1-2期
关键词：
Al-Mg-Si alloy; Cryorolling; Ultrafine grained microstructure; Tensile properties; MECHANICAL-PROPERTIES; MICROSTRUCTURE; ECAP; DEFORMATION; ALUMINUM; BEHAVIOR;
D O I：
10.1016/j.jallcom.2008.02.028
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The microstructure and mechanical properties of a precipitation hardenable Al-Mg-Si alloy subjected to cryorolling (CR), short annealing and ageing treatments are reported in this present work. The pre-cryorolled solid solution treatment combined with post-CR short annealing (155 degrees C for 5 min) and then ageing treatment (125 degrees C for 12 h) has been found to be the optimum processing condition to obtain the ultrafine grained microstructure with substantial improvement of tensile strength (286 MPa) and good tensile ductility (14%) in the Al-Mg-Si alloy. The significant improvement of the mechanical properties of the cryorolled and peak aged 6063 Al alloys have been observed as compared to its bulk alloys in the peak-aged condition (T6). (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：285 / 288
页数：4
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