Effect of Sr Addition on Microstructure and Mechanical Properties of Semi-solid 2024 Al Alloys

被引：1
作者：
Khunbanterng, Nisachon [1 ]
Wisutmethangoon, Sirikul [2 ]
Plookphol, Thawatchai [1 ]
Wannasin, Jessada [1 ]
机构：
[1] Prince Songkla Univ, Dept Min & Mat Engn, Hat Yai 90112, Songkhla, Thailand
[2] Prince Songkla Univ, Dept Mech Engn, Hat Yai 90112, Thailand
来源：
FRONTIERS OF MANUFACTURING AND DESIGN SCIENCE IV, PTS 1-5 | 2014年 / 496-500卷
关键词：
strontium; heat treatment; semi-solid; 2024; Al; microstructure; mechanical properties; HEAT-TREATMENT;
D O I：
10.4028/www.scientific.net/AMM.496-500.336
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Semi-solid 2024 Al alloys with strontium (Sr) addition of 0.15 wt% and 0.3 wt% were prepared by Gas Induced Semi-Solid (GISS) process. Effect of Sr addition on the microstructure and mechanical properties of the semi-solid 2024 alloys was investigated. It was found that the tensile strength and % elongation of the T6 heat treated alloy with the Sr addition were higher than those without Sr addition owing to the reduction of Mg2Si phase formation. The semi-solid 2024 Al alloy with 0.15%Sr addition obtained the average highest tensile strength of 382 MPa and elongation of 6.45%.
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页码：336 / +
页数：2
相关论文
共 13 条
[1]  
*ASM INT, 1991, ASM HDB HEAT TREAT, V4, P1876
[2]   Structure and properties of Al-7Si-Ni and Al-7Si-Cu cast alloys nonmodified and modified with Sr [J].
García-Hinojosa, JA ;
González, CR ;
González, GM ;
Houbaet, Y .
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2003, 143 :306-310
[3]   Microstructure characteristics and mechanical properties of rheoformed wrought aluminum alloy 2024 [J].
Guo Hong-min ;
Yang Xiang-jie ;
Zhang Meng .
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2008, 18 (03) :555-561
[4]   Restraining effect of strontium on the crystallization of Mg2Si phase during solidification in Al-Si-Mg casting alloys and mechanisms [J].
Liao, HC ;
Sun, Y ;
Sun, GX .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 358 (1-2) :164-170
[5]   T6 heat treatment of rheocasting 7075 Al alloy [J].
Mahathaninwong, N. ;
Plookphol, T. ;
Wannasin, J. ;
Wisutmethangoon, S. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 532 :91-99
[6]   Influence of heat treatment on the microstructure, texture and formability of 2024 aluminium alloy [J].
Moy, Charles K. S. ;
Weiss, Matthias ;
Xia, Junhai ;
Sha, Gang ;
Ringer, Simon P. ;
Ranzi, Gianluca .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 552 :48-60
[7]   Effects of modification during conventional and semi-solid metal processing of A356 Al-Si alloy [J].
Nafisi, S ;
Ghomashchi, R .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 415 (1-2) :273-285
[8]   Microstructure evolution during solution heat treatment of semisolid cast 2024 aluminum alloy [J].
Pannaray, Siriwan ;
Wisutmethangoon, Sirikul ;
Plookphol, Thawatchai ;
Wannasin, Jessada .
ADVANCED MANUFACTURING SYSTEMS, 2011, 339 :714-+
[9]   Modification effect of Sr on the microstructures and mechanical properties of Al-10.5Si-2.0Cu recycled alloy for die casting [J].
Shin, Sang-Soo ;
Kim, Eok-Soo ;
Yeom, Gil-Yong ;
Lee, Jae-Chul .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 532 :151-157
[10]   2024 aluminium alloy wettability and superficial cleaning improvement by air cold plasma treatment [J].
Sorrentino, L. ;
Carrino, L. .
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2009, 209 (03) :1400-1409
12