Bounds to hardening by solid solution, precipitation and short range order in Mg binary alloys

Caceres, C. H. and Abaspour, Saeideh (2013). Bounds to hardening by solid solution, precipitation and short range order in Mg binary alloys. In: Norbert Hort, Suveen N. Mathaudhu, Neale R. Neelameggham and Martyn Alderman, Magnesium Technology 2013. Magnesium Technology 2013 - TMS 2013 142nd Annual Meeting and Exhibition, San Antonio, United States, (227-230). 3-7 March 2013. doi:10.1002/9781118663004.ch37


Author Caceres, C. H.
Abaspour, Saeideh
Title of paper Bounds to hardening by solid solution, precipitation and short range order in Mg binary alloys
Conference name Magnesium Technology 2013 - TMS 2013 142nd Annual Meeting and Exhibition
Conference location San Antonio, United States
Conference dates 3-7 March 2013
Convener The Minerals, Metals & Materials Society (TMS)
Proceedings title Magnesium Technology 2013   Check publisher's open access policy
Journal name Magnesium Technology   Check publisher's open access policy
Place of Publication Hoboken, NJ, United States
Publisher John Wiley & Sons
Publication Year 2013
Sub-type Fully published paper
DOI 10.1002/9781118663004.ch37
ISBN 9781118605523
9781118663004
ISSN 1545-4150
Editor Norbert Hort
Suveen N. Mathaudhu
Neale R. Neelameggham
Martyn Alderman
Start page 227
End page 230
Total pages 4
Chapter number 37
Total chapters 62
Collection year 2014
Language eng
Abstract/Summary Miedema's coordinates are used to rank 4 model binary alloys considering the respective values of enthalpy of formation and the tendency to developing random solid solution, precipitation, short range order (SRO) and intermetallic compounds. The terminal solid solubility generally increases whereas the tendency to order decreases with decreasing heat of formation, and hardening by near-random solid solution and/or precipitation is expected to be dominant for solutes with low tendency to order, such as Al. For solutes with an intermediate tendency to order, hence solubility, such as Zn, or to form compounds, such as Gd, SRO is predicted to dominate the hardening. For solutes whose very large heat of formation leads to very high melting point intermetallic s forming congruently, such as Sb, the terminal solid solubility is too low for any solute based hardening to be feasible. Implicancies for alloy design and selection regarding solute or precipitation hardening, SRO and creep resistance are discussed.
Keyword Miedema's coordinates
Mg alloys
Precipitation hardening
Short range order
Q-Index Code B1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Fri, 22 Mar 2013, 14:39:50 EST by Brianne Mackinnon on behalf of School of Mechanical and Mining Engineering