Creep features of nanostructured materials produced by severe plastic deformation

被引：26

作者：

Grabovetskaya, GP ^{[1
]}

Ivanov, KV ^{[1
]}

Kolobov, YR ^{[1
]}

机构：

[1] Inst Strength Phys & Mat Sci, Tomsk 634021, Russia

来源：

ANNALES DE CHIMIE-SCIENCE DES MATERIAUX | 2002年 / 27卷 / 03期

关键词：

D O I：

10.1016/S0151-9107(02)80010-1

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Using nanostructured copper, nickel and Cu-Al2O3 composite as an example, characteristic features of creep of nanostructured materials produced by severe plastic deformation was studied at temperatures T < 0.3 T-melt (T-melt is the melting point). The role of grain boundary state in the development of plastic deformation during creep of the above materials is analyzed. The differences in the creep activation energies in nanostructured and coarse-grained state is explained by the different contributions of grain boundary sliding to the overall deformation.

引用

页码：89 / 98

页数：10

共 22 条

[1]

[Anonymous], 1992, SUPERPLASTICITY ALLO

[2]

ASHBY HJ, 1982, DEFORMATION MECH MAP

[3]

GAROFALO F, 1968, FUNDAMENTAL CREEP CR

[4]

Gleiter H, 1972, PROGR MAT SCI, V16

[5]

Grabovetskaya G. P., 1994, Russian Physics Journal, V37, P1181, DOI 10.1007/BF00569800

[6] Deformation behavior of Cu-based nanocomposite processed by severe plastic deformation [J].

Islamgaliev, RK ;

Buchgraber, W ;

Kolobov, YR ;

Amirkhanov, NM ;

Sergueeva, AV ;

Ivanov, KV ;

Grabovetskaya, GP .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2001, 319 :872-876

[7]

Ivanov K. V., 2001, ADV MATER, V4, P78

[8] Investigation of possibility to get superplastic state of nanostructured copper [J].

Ivanov, KV ;

Ratochka, IV ;

Kolobov, YR .

NANOSTRUCTURED MATERIALS, 1999, 12 (5-8) :947-950

[9]

Kolobov YR, 1996, ANN CHIM-SCI MAT, V21, P483

[10]

Kolobov YR, 2001, PHYS MET METALLOGR+, V91, P532

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