Superplastic behaviour of friction stir processed AZ91 magnesium alloy produced by high pressure die cast

被引：107
作者：
Cavaliere, P. [1 ]
De Marco, P. P. [1 ]
机构：
[1] Univ Lecce, Fac Engn, INFM, Dept Ingn Innovaz, I-73100 Lecce, Italy
来源：
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2007年 / 184卷 / 1-3期
关键词：
FSP; AZ91; superplasticity;
D O I：
10.1016/j.jmatprotec.2006.11.005
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The room temperature and hot tensile properties of AZ91 magnesium alloy produced by high pressure die cast after friction stir processing (FSP) were studied in the present paper. Such process is a modification of classical friction stir welding one in which the sheets are not joined but the stirring action of the tool, on the bulk material, is used to refine the microstructure in order to increase the mechanical properties of the metal such as yield strength, fatigue life and possible superplastic properties at relative low temperature and high strain rates [R.S. Mishra, Z.Y. Ma, Mater. Sci. Eng. R 50 (2005) 1-78]. The material was FSP after solution treatment and the superplastic behaviour was analysed by means of hot tensile tests, in longitudinal direction, in the temperature and strain rate ranges of 225-300 degrees C and 10(-2) to 10(-4) s(-1), respectively. (c) 2006 Elsevier B.V. All rights reserved.
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页码：77 / 83
页数：7
相关论文
共 24 条
[1]   Grain refinement of AZ31 and ZK60 Mg alloys - towards superplasticity studies [J].
Bussiba, A ;
Ben Artzy, A ;
Shtechman, A ;
Ifergan, S ;
Kupiec, M .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2001, 302 (01) :56-62
[2]   Effect of welding parameters on mechanical and micro structural properties of AA6056 joints produced by Friction Stir Welding [J].
Cavaliere, P. ;
Campanile, G. ;
Panella, F. ;
Squillace, A. .
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2006, 180 (1-3) :263-270
[3]   Effect of friction stir processing on mechanical and microstructural properties of AM60B Magnesium alloy [J].
Cavaliere, P. ;
De Marco, P. P. .
JOURNAL OF MATERIALS SCIENCE, 2006, 41 (11) :3459-3464
[4]   High strain rate superplasticity in a commercial 2024 Al alloy via friction stir processing [J].
Charit, I ;
Mishra, RS .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 359 (1-2) :290-296
[5]   Flow patterns during friction stir welding [J].
Guerra, A ;
Schmidt, C ;
McClure, JC ;
Murr, LE ;
Nunes, AC .
MATERIALS CHARACTERIZATION, 2002, 49 (02) :95-101
[6]   Continuous dynamic recrystallization during friction stir welding of high strength aluminum alloys [J].
Jata, KV ;
Semiatin, SL .
SCRIPTA MATERIALIA, 2000, 43 (08) :743-749
[7]   Friction-stir welding effects on microstructure and fatigue of aluminum alloy 7050-T7451 [J].
Jata, KV ;
Sankaran, KK ;
Ruschau, JJ .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2000, 31 (09) :2181-2192
[8]   Recent developments in high strain rate superplasticity [J].
Langdon, TG .
MATERIALS TRANSACTIONS JIM, 1999, 40 (08) :716-722
[9]   The joint characteristics of friction stir welded AZ91D magnesium alloy [J].
Lee, WB ;
Kim, JW ;
Yeon, YM ;
Jung, SB .
MATERIALS TRANSACTIONS, 2003, 44 (05) :917-923
[10]   Joint properties of friction stir welded AZ31B-H24 magnesium alloy [J].
Lee, WB ;
Yeon, YM ;
Jung, SB .
MATERIALS SCIENCE AND TECHNOLOGY, 2003, 19 (06) :785-790
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