Influence of defects on strength of industrial aluminum alloy Al–Si 319

Autor:	J. Espinoza-Cuadra, H. Mancha-Molinar, G. García-García
Rok vydání:	2007
Předmět:	education.field_of_study Materials science Weibull modulus Alloy Metallurgy Population Oxide chemistry.chemical_element Modulus engineering.material Casting chemistry.chemical_compound chemistry Aluminium engineering education Weibull distribution
Zdroj:	Materials & Design. 28:1038-1044
ISSN:	0261-3069
DOI:	10.1016/j.matdes.2005.10.013
Popis:	The effect of cooling rate, chemical composition, and type of heat treatment and microstructural architecture of cast Al–Si 319 industrial alloy has been quantified using the cumulative Weibull distribution. This allows a particular figure to quantify the spread of the data with the Weibull modulus. Modulus was found to vary from 12.47 to 68.64, and characteristic life was found to vary from 201.48 to 347.89 MPa depending on processing conditions of the material. Fractographic examination of the castings showed tangled networks of oxide films, which are actually cracks in the casting. Oxide films are normally observed in the fracture surfaces of the specimens. The mechanical properties depend primarily on defects of the population instead of other factors.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7c0e6a730f08c80777c7a25405c3ea51 https://doi.org/10.1016/j.matdes.2005.10.013 Zobrazit plný text záznamu Full Text from ScienceDirect