Fracture of an osprey™ AlSiFe alloy: A microstructure based model for fracture of microheterogeneous materials

Autor:	Yves Bréchet, A. Mocellin, R. Fougeres
Rok vydání:	1995
Předmět:	Cracking Precipitation hardening Materials science Composite number Alloy Metallurgy General Engineering engineering Nucleation Fracture (geology) engineering.material Plasticity Microstructure
Zdroj:	Acta Metallurgica et Materialia. 43:1135-1140
ISSN:	0956-7151
DOI:	10.1016/0956-7151(94)00327-e
Popis:	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 clearly appear.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ed67fb2304d8b4c052bcac0d6b022a29 https://doi.org/10.1016/0956-7151(94)00327-e Zobrazit plný text záznamu Full Text from ScienceDirect