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Mesostructural refinement in the early stages of mechanical alloying

Garroni, Sebastiano and Enzo, Stefano and Delogu, Francesco (2014) Mesostructural refinement in the early stages of mechanical alloying. Scripta Materialia, Vol. 83 , p. 49-52. ISSN 1359-6462. Article.

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DOI: 10.1016/j.scriptamat.2014.04.007

Abstract

This study focuses on the early stages of the mechanical alloying of 22 different binary mixtures. In each case, the number of alloyed particles increases linearly with the number of collisions, and the volume of powder effectively processed during a single collision is ∼9.0 × 10−3 mm3. The alloyed particles exhibit a heterogeneous mesostructure with characteristic lengths decreasing exponentially with the number of collisions. The rate of mesostructural refinement is inversely proportional to the difference between the hardnesses of the individual metals.

Item Type:Article
ID Code:10078
Status:Published
Refereed:Yes
Uncontrolled Keywords:Powder processing, mechanical alloying, scanning electron microscopy (SEM), metals and alloys, mesostructure
Subjects:Area 03 - Scienze chimiche > CHIM/02 Chimica fisica
Divisions:001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Chimica e Farmacia
Publisher:Elsevier
ISSN:1359-6462
Deposited On:15 Sep 2014 11:11

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