Formation of the nanocrystalline state by twinning crystals

被引：6

作者：

Akchurin, MS ^{[1
]}

Galiulin, RV ^{[1
]}

机构：

[1] Russian Acad Sci, Shubnikov Inst Crystallog, Moscow 119333, Russia

来源：

CRYSTALLOGRAPHY REPORTS | 2003年 / 48卷 / 03期

关键词：

D O I：

10.1134/1.1578134

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The formation of the nanocrystalline state under the action of a concentrated load applied to crystals is studied. It is established that the relaxation of the enormous stresses (on the order of the shear modulus) arising under the indenter proceeds through twinning, which results in the fragmentation of the structure into nanoblocks. The properties of the nanocrystalline material thus obtained are explained based on the consideration of grain boundaries as twin boundaries that represent another phase of the material. (C) 2003 MAN "Nauka/Interperiodica".

引用

页码：469 / 472

页数：4

共 19 条

[1]

Akchurin M. Sh., 1995, Physics of the Solid State, V37, P459

[2]

AKCHURIN MS, 2002, 19 RUSS C EL MICR RK, P27

[3]

Andrievskii RA, 2000, FIZ MET METALLOVED+, V89, P91

[4]

[Anonymous], FIZ MET METALLOVED

[5]

Farber BY, 1998, PHYS STATUS SOLIDI A, V166, P115, DOI 10.1002/(SICI)1521-396X(199803)166:1<115::AID-PSSA115>3.0.CO

[6]

2-A

[7] NANOCRYSTALLINE MATERIALS [J].

BIRRINGER, R .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1989, 117 :33-43

[8]

Gleiter H., 1992, Nanostructured Materials, V1, P1, DOI 10.1016/0965-9773(92)90045-Y

[9]

GOGOBERIDZE DB, 1938, MECH TWINNING

[10] Nondislocation plasticity and its role in the mass transfer and formation of the indentation under dynamic conditions [J].

Golovin, YI ;

Tyurin, AI .

PHYSICS OF THE SOLID STATE, 2000, 42 (10) :1865-1867

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