Achieving high strength and high ductility in precipitation-hardened alloys

被引：250
作者：
Horita, Z
Ohashi, K
Fujita, T
Kaneko, K
Langdon, TG [1 ]
机构：
[1] Univ So Calif, Dept Mat Sci, Dept Aerosp & Mech Engn, Los Angeles, CA 90089 USA
[2] Kyushu Univ, Fac Engn, Dept Mat Sci & Engn, Fukuoka 8128581, Japan
[3] Arizona State Univ, Ctr Solid State Sci, Tempe, AZ 85287 USA
来源：
ADVANCED MATERIALS | 2005年 / 17卷 / 13期
关键词：
D O I：
10.1002/adma.200500069
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Ultrafine-grained materials may be produced by applying severe plastic deformation, but these materials generally exhibit high strength and limited ductility. This report describes a technique for producing high strength and high ductility (see Figure) in precipitation-hardened alloys at ambient temperatures based on introducing intermediate metastable phases into ultrafine-grained microstructures.
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收藏
页码：1599 / +
页数：5
相关论文
共 25 条
[1]   THE ORIENTED GROWTH OF PRECIPITATES ON DISLOCATIONS IN AL-ZN-MG .1. EXPERIMENTAL-OBSERVATIONS [J].
ALLEN, RM ;
VANDERSANDE, JB .
ACTA METALLURGICA, 1980, 28 (09) :1185-1195
[2]  
AUER H, 1965, Z METALLKD, V56, P240
[3]   High-performance polymer light-emitting diodes doped with a red phosphorescent iridium complex [J].
Chen, FC ;
Yang, Y ;
Thompson, ME ;
Kido, J .
APPLIED PHYSICS LETTERS, 2002, 80 (13) :2308-2310
[4]   The shearing characteristics associated with equal-channel angular pressing [J].
Furukawa, M ;
Iwahashi, Y ;
Horita, Z ;
Nemoto, M ;
Langdon, TG .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1998, 257 (02) :328-332
[5]   Development of microstructure in FCC metals during cold work [J].
Hansen, N ;
Jensen, DJ .
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1999, 357 (1756) :1447-1469
[6]  
HENSLER JH, 1964, J I MET, V92, P340
[7]   An investigation of grain boundaries in submicrometer-grained Al-Mg solid solution alloys using high-resolution electron microscopy [J].
Horita, Z ;
Smith, DJ ;
Furukawa, M ;
Nemoto, M ;
Valiev, RZ ;
Langdon, TG .
JOURNAL OF MATERIALS RESEARCH, 1996, 11 (08) :1880-1890
[8]   Principle of equal-channel angular pressing for the processing of ultra-fine grained materials [J].
Iwahashi, Y ;
Wang, JT ;
Horita, Z ;
Nemoto, M ;
Langdon, TG .
SCRIPTA MATERIALIA, 1996, 35 (02) :143-146
[9]   Superplastic extensibility of nanocrystalline copper at room temperature [J].
Lu, L ;
Sui, ML ;
Lu, K .
SCIENCE, 2000, 287 (5457) :1463-1466
[10]   THE METALLOGRAPHY OF PRECIPITATION IN AN A1-16-PERCENT AG ALLOY [J].
NICHOLSON, RB ;
NUTTING, J .
ACTA METALLURGICA, 1961, 9 (04) :332-343
123