Mechanical Properties of Al–Si–Mg Foams with Different SiC Contents and Densities

Autor:	N.V. Ravi Kumar, Amol A. Gokhale
Rok vydání:	2021
Předmět:	Stress (mechanics) chemistry.chemical_compound Compressive strength Materials science chemistry Energy absorbing Composite strength Relative density Titanium hydride Composite material Compression (physics) Plateau (mathematics)
Zdroj:	Transactions of the Indian Institute of Metals. 75:449-458
ISSN:	0975-1645 0972-2815
Popis:	A356/SiCP composites were prepared by stir-casting and were foamed immediately using titanium hydride. The compression properties (compressive strength, plateau stress, and absorbed energy) of foams increase with the increase in relative density (RD) irrespective of the SiC content. While an increasing SiC content improves foam properties, the nature of the increase depends on RD. At higher RD, the properties even out up on normalising with respective composite strength. At lower RD, cell wall ruptures, and cracks in lower SiC foams deteriorating their properties. This is observed in Ashby-Gibson model data where, below 0.2 RD, normalised plateau strength is lower than the predictions. The experimental data across the RD and SiC contents can be approximated by a simple power-law relationship.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b46432648b866af5f14821da2a8a424f https://doi.org/10.1007/s12666-021-02436-x Zobrazit plný text záznamu Full text from SpringerLink