Weakness of the "hot spots" approach to the kinetics of mechanically induced phase transformations

Delogu, Francesco and Cocco, Giorgio (2008) Weakness of the "hot spots" approach to the kinetics of mechanically induced phase transformations. Journal of Alloys and Compounds, Vol. 465 (1-2), p. 540-546. ISSN 0925-8388. Article.

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DOI: 10.1016/j.jallcom.2007.11.024

Abstract

A systematic investigation on different systems has been performed in order to ascertain the possible role of local temperature rise at impacts in the mechanism of mechanically induced phase transformation processes. High-purity commercial powders have been mechanically treated under different milling conditions to study their kinetic behavior. Phase transformations have been correlated to the minimum temperatures needed to trigger the transformation processes under thermal activation conditions. Deep contradictions have arisen in connection with the so-called “hot spots” theory.

Item Type:	Article
ID Code:	1360
Status:	Published
Refereed:	Yes
Uncontrolled Keywords:	Mechanical processing, phase transformation, kinetics
Subjects:	Area 03 - Scienze chimiche > CHIM/07 Fondamenti chimici delle tecnologie
Divisions:	001 Università di Sassari > 01 Dipartimenti > Chimica
Publisher:	Elsevier Science
ISSN:	0925-8388
Copyright Holders:	© 2007 Elsevier B.V.
Deposited On:	18 Aug 2009 10:04

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