Thermal stability and microstructural evolution in ultrafine-grained nickel after equal-channel angular pressing (ECAP)

被引：64
作者：
Zhilyaev, AP [4 ]
Nurislamova, GV
Baró, MD
Valiev, RZ
Langdon, TG
机构：
[1] Ufa State Aviat Tech Univ, Inst Phys Adv Mat, Ufa 450000, Russia
[2] Univ So Calif, Dept Aerosp Engn, Los Angeles, CA 90089 USA
[3] Univ So Calif, Dept Engn Mech, Los Angeles, CA 90089 USA
[4] Univ Autonoma Barcelona, Dept Phys, Bellaterra 08193, Spain
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2002年 / 33卷 / 06期
关键词：
D O I：
10.1007/s11661-002-0197-z
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An attempt was made to examine grain growth kinetics in ultrafine-grained nickel processed by equal-channel angular pressing (ECAP). It was found that growth kinetics is controlled by grain boundary diffusion and possibly by other short-circuit diffusion paths existing in nanostructured materials. © 2002 ASM International & TMS-The Minerals, Metals and Materials Society.
引用
收藏
页码：1865 / 1868
页数：4
相关论文
共 17 条
[1]  
CAHN RW, 1983, PHYSICAL METALLURGY, P1596
[2]   Observations of grain boundary structure in submicrometer-grained Cu and Ni using high-resolution electron microscopy [J].
Horita, Z ;
Smith, DJ ;
Nemoto, M ;
Valiev, RZ ;
Langdon, TG .
JOURNAL OF MATERIALS RESEARCH, 1998, 13 (02) :446-450
[3]   Grain growth kinetics in nanostructured nickel [J].
Iordache, MC ;
Whang, SH ;
Jiao, Z ;
Wang, ZM .
NANOSTRUCTURED MATERIALS, 1999, 11 (08) :1343-1349
[4]   The process of grain refinement in equal-channel angular pressing [J].
Iwahashi, Y ;
Horita, Z ;
Nemoto, M ;
Langdon, TG .
ACTA MATERIALIA, 1998, 46 (09) :3317-3331
[5]   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
[6]   An investigation of microstructural evolution during equal-channel angular pressing [J].
Iwahashi, Y ;
Horita, Z ;
Nemoto, M ;
Langdon, TG .
ACTA MATERIALIA, 1997, 45 (11) :4733-4741
[7]   Factors influencing the equilibrium grain size in equal-channel angular pressing: Role of Mg additions to aluminum [J].
Iwahashi, Y ;
Horita, Z ;
Nemoto, M ;
Langdon, TG .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1998, 29 (10) :2503-2510
[8]   Influence of stacking fault energy on microstructural development in equal-channel angular pressing [J].
Komura, S ;
Horita, Z ;
Nemoto, M ;
Langdon, TG .
JOURNAL OF MATERIALS RESEARCH, 1999, 14 (10) :4044-4050
[9]  
KROZNIKOV AV, 1997, FIZ MET METALLOVED, V84, P413
[10]   ON THE ENHANCED GRAIN-GROWTH IN ULTRAFINE GRAINED METALS [J].
LIAN, JS ;
VALIEV, RZ ;
BAUDELET, B .
ACTA METALLURGICA ET MATERIALIA, 1995, 43 (11) :4165-4170
12