Yield stress of fine grained materials

被引：425

作者：

Masumura, RA ^{[1
]}

Hazzledine, PM

Pande, CS

机构：

[1] USN, Res Lab, Div Mat Sci & Technol, Washington, DC 20375 USA

[2] USAF, Wright Lab, Mat Directorate, MLLM, Wright Patterson AFB, OH 45433 USA

来源：

ACTA MATERIALIA | 1998年 / 46卷 / 13期

关键词：

D O I：

10.1016/S1359-6454(98)00150-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A model is proposed for the yield stress of ultra-fine grained materials based upon Coble creep. Using Coble creep with a threshold stress for finer grains and conventional Hall-Fetch strengthening for larger grains, an analytical relation is derived for the yield stress as a function of grain size for a range from very large to very small. A grain size distribution is incorporated into the analysis to account for a distribution of grain sizes occurring in most specimens. This result is compared with experimental data from Cu and NiP and shown to be in good agreement. Acta Metallurgica Inc. Published by Elsevier Science Ltd.

引用

页码：4527 / 4534

页数：8

共 34 条

[1] ARMSTRONG RW, 1974, CAN METALL QUART, V13, P187
[2] Armstrong RW, 1996, PROCESSING AND PROPERTIES OF NANOCRYSTALLINE MATERIALS, P345
[3] INTERFACE REACTION CONTROLLED DIFFUSIONAL CREEP - CONSIDERATION OF GRAIN-BOUNDARY DISLOCATION CLIMB SOURCES
BURTON, B
[J]. MATERIALS SCIENCE AND ENGINEERING, 1972, 10 (01): : 9 - &
[4] ON THE VALIDITY OF THE HALL-PETCH RELATIONSHIP IN NANOCRYSTALLINE MATERIALS
CHOKSHI, AH
ROSEN, A
KARCH, J
GLEITER, H
[J]. SCRIPTA METALLURGICA, 1989, 23 (10): : 1679 - 1683
[5] Dogan C. P., 1994, Nanostructured Materials, V4, P631, DOI 10.1016/0965-9773(94)90015-9
[6] DEFORMATION OF NANOSCALE CERMETS
EVANS, AG
HIRTH, JP
[J]. SCRIPTA METALLURGICA ET MATERIALIA, 1992, 26 (11): : 1675 - 1680
[7] ON THE MECHANISM OF WORK HARDENING IN FACE-CENTRED CUBIC METALS, WITH SPECIAL REFERENCE TO POLYCRYSTALLINE COPPER
FELTHAM, P
MEAKIN, JD
[J]. PHILOSOPHICAL MAGAZINE, 1957, 2 (13): : 105 - 112
[8] PROCESSING AND MECHANICAL-BEHAVIOR OF NANOCRYSTALLINE FE
FOUGERE, GE
WEERTMAN, JR
SIEGEL, RW
[J]. NANOSTRUCTURED MATERIALS, 1995, 5 (02): : 127 - 134
[9] THE STUDY OF GRAIN-SIZE DEPENDENCE OF YIELD STRESS OF COPPER FOR A WIDE GRAIN-SIZE RANGE
GERTSMAN, VY
HOFFMANN, M
GLEITER, H
BIRRINGER, R
[J]. ACTA METALLURGICA ET MATERIALIA, 1994, 42 (10): : 3539 - 3544
[10] ON THE YIELD STRESS OF NANOCRYSTALS
GRYAZNOV, VG
GUTKIN, MY
ROMANOV, AE
TRUSOV, LI
[J]. JOURNAL OF MATERIALS SCIENCE, 1993, 28 (16) : 4359 - 4365

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