Deformation mechanisms and tensile superplasticity in nanocrystalline materials

被引:48
作者
Mishra, RS
McFadden, SX
Valiev, RZ
Mukherjee, AK
机构
[1] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA
[2] Ufa State Aviat Tech Univ, Inst Phys Adv Mat, Ufa, Russia
来源
JOM-JOURNAL OF THE MINERALS METALS & MATERIALS SOCIETY | 1999年 / 51卷 / 01期
基金
美国国家科学基金会;
关键词
D O I
10.1007/s11837-999-0010-1
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Nanocrystalline materials provide a unique opportunity to investigate deformation mechanisms at an extremely fine microstructural scale. An intriguing question has been whether the deformation mechanisms scale with grain size to the nanocrystalline range or whether there are fundamental changes/transitions. The observations of low-temperature and high-strain-rate superplasticity in nanocrystalline materials with some unique features open up new possibilities for scientific and technological advancements.
引用
收藏
页码:37 / 40
页数:4
相关论文
共 33 条
[1]   ON THE VALIDITY OF THE HALL-PETCH RELATIONSHIP IN NANOCRYSTALLINE MATERIALS [J].
CHOKSHI, AH ;
ROSEN, A ;
KARCH, J ;
GLEITER, H .
SCRIPTA METALLURGICA, 1989, 23 (10) :1679-1683
[2]   AN ANALYSIS OF CAVITY NUCLEATION IN SUPERPLASTICITY [J].
CHOKSHI, AH ;
MUKHERJEE, AK .
ACTA METALLURGICA, 1989, 37 (11) :3007-3017
[4]  
Floreen S., 1967, SCRIPTA METALL, V1, P19
[5]   GRAIN-SIZE DISTRIBUTION EFFECTS IN SUPERPLASTICITY [J].
GHOSH, AK ;
RAJ, R .
ACTA METALLURGICA, 1981, 29 (04) :607-616
[6]   NANOCRYSTALLINE MATERIALS [J].
BIRRINGER, R .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1989, 117 :33-43
[7]   INTERCRYSTALLINE DENSITY OF NANOCRYSTALLINE NICKEL [J].
HAASZ, TR ;
AUST, KT ;
PALUMBO, G ;
ELSHERIK, AM ;
ERB, U .
SCRIPTA METALLURGICA ET MATERIALIA, 1995, 32 (03) :423-426
[8]   DIFFUSIONAL VISCOSITY OF A POLYCRYSTALLINE SOLID [J].
HERRING, C .
JOURNAL OF APPLIED PHYSICS, 1950, 21 (05) :437-445
[9]  
Kaibyshev O.A., 1992, SUPERPLASTICITY ALLO, P149
[10]   CERAMICS DUCTILE AT LOW-TEMPERATURE [J].
KARCH, J ;
BIRRINGER, R ;
GLEITER, H .
NATURE, 1987, 330 (6148) :556-558