FRACTURE OF AN OSPREY(TM) ALSIFE ALLOY - A MICROSTRUCTURE BASED MODEL FOR FRACTURE OF MICROHETEROGENEOUS MATERIALS

被引：26

作者：

MOCELLIN, A ^{[1
]}

BRECHET, Y ^{[1
]}

FOUGERES, R ^{[1
]}

机构：

[1] ECOLE NATL SUPER ELECTROCHIM & ELECTROME GRENOBLE, THERMODYNAM & PHYSICOCHIM MET LAB, CNRS, URA 29, F-38402 ST MARTIN DHERES, FRANCE

来源：

ACTA METALLURGICA ET MATERIALIA | 1995年 / 43卷 / 03期

关键词：

D O I：

10.1016/0956-7151(94)00327-E

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper is concerned with the failure in tension of an AlSiFe alloy with a particular composite type microstructure. The experimental observations allow to distinguish three main steps in the damage process: nucleation by the cracking of some big silicon particles, increasing of the number of cracked particles with macroscopic plastic strain and final failure by joining of the microcracks thus created. This schematizaton is the basis of the modelization which requires Eshelby type calculations and energetic balances. This model is in good agreement with experiment for the studied alloy and makes the microstructural parameters of the material dearly appear.

引用

页码：1135 / 1140

页数：6

共 18 条

[1]

AMBROISE MH, 1990, MICROMECHANICS AND INHOMOGENEITY, P41

[2] DAMAGE INITIATION IN METAL MATRIX COMPOSITES [J].

BRECHET, Y ;

EMBURY, JD ;

TAO, S ;

LUO, L .

ACTA METALLURGICA ET MATERIALIA, 1991, 39 (08) :1781-1786

[3] WORK-HARDENING OF COPPER-SILICA .1. MODEL BASED ON INTERNAL STRESSES, WITH NO PLASTIC RELAXATION [J].

BROWN, LM ;

STOBBS, WM .

PHILOSOPHICAL MAGAZINE, 1971, 23 (185) :1185-&

[4] THE ELASTIC FIELD OUTSIDE AN ELLIPSOIDAL INCLUSION [J].

ESHELBY, JD .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1959, 252 (1271) :561-569

[5] THE DETERMINATION OF THE ELASTIC FIELD OF AN ELLIPSOIDAL INCLUSION, AND RELATED PROBLEMS [J].

ESHELBY, JD .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1957, 241 (1226) :376-396

[6]

Friedel J., 1964, DISLOCATIONS

[7] AN ITERATIVE ESHELBY METHOD TO CALCULATE AVERAGE STRESS-FIELDS AND ELASTIC-MODULI OF COMPOSITE AND MULTIPHASE MATERIALS [J].

HAMANN, R ;

MOCELLIN, A ;

GOBIN, PF ;

FOUGERES, R .

SCRIPTA METALLURGICA ET MATERIALIA, 1992, 26 (06) :963-968

[8]

HAMANN R, 1991, 12TH P RISO INT S MA, P373

[9] PLASTIC-FLOW STUDY USING THE MICROGRID TECHNIQUE [J].

KARIMI, A .

MATERIALS SCIENCE AND ENGINEERING, 1984, 63 (02) :267-276

[10] ASPECTS OF FRACTURE IN PARTICULATE REINFORCED METAL MATRIX COMPOSITES [J].

LLOYD, DJ .

ACTA METALLURGICA ET MATERIALIA, 1991, 39 (01) :59-71

← 1 2 →