Magnetic, Structural and Mechanical Behavior of Transitional Bulk Nanostructured Al Alloy

Autor:	A. O. Surendranathan, M. M. Rajath Hegde
Rok vydání:	2012
Předmět:	Materials science Magnetism Annealing (metallurgy) Alloy Metallurgy engineering.material Indentation hardness Condensed Matter::Materials Science Magnetization Ferromagnetism engineering Crystallite Composite material Ball mill
Zdroj:	ICAA13 Pittsburgh ISBN: 9783319482255 ICAA13: 13th International Conference on Aluminum Alloys
DOI:	10.1002/9781118495292.ch146
Popis:	Mechanically alloyed powders synthesized by high energy rate ball milling were consolidated to produce bulk polycrystalline Al-50 at. % Fe alloy. Consolidation was achieved by cold compaction and sintering, while annealing was done to obtain an ordered structure. Annealed samples were deformed plastically by a range of compression stresses. Combination of characterization techniques like x-ray diffraction, transmission electron microscopy, vibrating sample magnetometry and Vicker’s micro hardness measurement were utilized to examine different properties. Annealed sample exhibited ordered and non magnetic phase while deformation induced samples showed simultaneous transition to both disorder and ferromagnetism, the transitional alloy at intermediate state possessed partial disorder and low magnetization. The long range order and lattice expansion contribute to the increase in magnetism at low compression stresses while it is only due to the lattice expansion at higher stresses. The order to disorder transition can be assessed by micro hardness measurement.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a1e9f9417caaf3e929a19eb70c378ad https://doi.org/10.1002/9781118495292.ch146 Zobrazit plný text záznamu