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Titolo:
Dislocation-disclination model of heterogeneous nucleation of HCP-martensite
Autore:
Gutkin, MY; Mikaelyan, KN; Verijenko, VE;
Indirizzi:
Univ Natal, Sch Mech Engn, ZA-4041 Durban, South Africa Univ Natal Durban South Africa ZA-4041 ngn, ZA-4041 Durban, South Africa
Titolo Testata:
SCRIPTA MATERIALIA
fascicolo: 8, volume: 45, anno: 2001,
pagine: 939 - 945
SICI:
1359-6462(20011029)45:8<939:DMOHNO>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
STACKING-FAULT ENERGY; SHAPE-MEMORY ALLOYS; CR-MO ALLOY; FCC->HCP TRANSFORMATION; EPSILON-MARTENSITE; GENERAL MECHANISM; ELECTRON-MICROSCOPY; STAINLESS-STEEL; SYSTEM; DEFORMATION;
Keywords:
heterogenous phase transformation; martensite nucleation; theory of defects; grain boundaries; dislocations;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Gutkin, MY Univ Natal, Sch Mech Engn, ZA-4041 Durban, South Africa Univ Natal Durban South Africa ZA-4041 1 Durban, South Africa
Citazione:
M.Y. Gutkin et al., "Dislocation-disclination model of heterogeneous nucleation of HCP-martensite", SCR MATER, 45(8), 2001, pp. 939-945

Abstract

A dislocation-disclination model is proposed describing heterogeneous nucleation of an embryo of hopmartensite at a tilt grain boundary segment containing some extrinsic dislocations. The corresponding energy gain is analysed in detail. The equilibrium and critical embryo sizes under external conditions of temperature and stress are examined and discussed. (C) 2001 Published by Elsevier Science Ltd. on behalf of Acta Materialia Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/04/20 alle ore 22:57:14