Staff View: In-situ thermal analysis and macroscopical characterization of mg-xca and mg-0.5Ca-xzn alloy systems

In-situ thermal analysis and macroscopical characterization of mg-xca and mg-0.5Ca-xzn alloy systems

This research described the identification phases by thermal analysis and microscopy inspection of Mg–xCa and Mg–0.5%Ca–xZn alloys that were solidified at slow cooling rate. Analysis of cooling curve after Ca addition shows the evolution of the Mg2Ca intermetallic phase at around 520 °C in addition...

Full description

Saved in:

Bibliographic Details
Main Authors:	Farahany, Saeed, Bakhsheshi-Rad, Hamid Reza, Idris, Mohd. Hasbullah, Abdul Kadir, Mohammed Rafiq, Lotfabadi, Amir Fereidouni, Ourdjini, Ali
Format:	Article
Published:	Elsevier Ltd. 2012
Subjects:	QD Chemistry
Online Access:	http://eprints.utm.my/id/eprint/47109/ http://dx.doi.org/10.1016/j.tca.2011.10.027
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my.utm.47109
record_format	eprints
spelling	my.utm.471092019-03-31T08:31:50Z http://eprints.utm.my/id/eprint/47109/ In-situ thermal analysis and macroscopical characterization of mg-xca and mg-0.5Ca-xzn alloy systems Farahany, Saeed Bakhsheshi-Rad, Hamid Reza Idris, Mohd. Hasbullah Abdul Kadir, Mohammed Rafiq Lotfabadi, Amir Fereidouni Ourdjini, Ali QD Chemistry This research described the identification phases by thermal analysis and microscopy inspection of Mg–xCa and Mg–0.5%Ca–xZn alloys that were solidified at slow cooling rate. Analysis of cooling curve after Ca addition shows the evolution of the Mg2Ca intermetallic phase at around 520 °C in addition to a-Mg phase. First derivative curves of alloys after the addition of Zn to Mg–0.5Ca alloy reveals three peaks related to a-Mg, Mg2Ca and Ca2Mg6Zn3 for alloys that have Zn/Ca atomic ratio less than 1.23. The peak of Mg2Ca reaction on the first derivative curves disappeared for alloys containing Zn/Ca ratio more than 1.23. A new peak was also observed at 330 °C for Mg–0.5Ca–9Zn which was identified as Mg51Zn20. Solid fraction at coherency point decreased with increasing Ca and Zn elements. However, coherency time and difference between the nucleation and coherency temperatures (TN–TDCP) increased by adding Ca and Zn in Mg–Ca and Mg–Ca–Zn systems. Elsevier Ltd. 2012 Article PeerReviewed Farahany, Saeed and Bakhsheshi-Rad, Hamid Reza and Idris, Mohd. Hasbullah and Abdul Kadir, Mohammed Rafiq and Lotfabadi, Amir Fereidouni and Ourdjini, Ali (2012) In-situ thermal analysis and macroscopical characterization of mg-xca and mg-0.5Ca-xzn alloy systems. Thermochimica Acta, 527 . pp. 180-189. ISSN 0040-6031 http://dx.doi.org/10.1016/j.tca.2011.10.027 DOI:10.1016/j.tca.2011.10.027
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
topic	QD Chemistry
spellingShingle	QD Chemistry Farahany, Saeed Bakhsheshi-Rad, Hamid Reza Idris, Mohd. Hasbullah Abdul Kadir, Mohammed Rafiq Lotfabadi, Amir Fereidouni Ourdjini, Ali In-situ thermal analysis and macroscopical characterization of mg-xca and mg-0.5Ca-xzn alloy systems
description	This research described the identification phases by thermal analysis and microscopy inspection of Mg–xCa and Mg–0.5%Ca–xZn alloys that were solidified at slow cooling rate. Analysis of cooling curve after Ca addition shows the evolution of the Mg2Ca intermetallic phase at around 520 °C in addition to a-Mg phase. First derivative curves of alloys after the addition of Zn to Mg–0.5Ca alloy reveals three peaks related to a-Mg, Mg2Ca and Ca2Mg6Zn3 for alloys that have Zn/Ca atomic ratio less than 1.23. The peak of Mg2Ca reaction on the first derivative curves disappeared for alloys containing Zn/Ca ratio more than 1.23. A new peak was also observed at 330 °C for Mg–0.5Ca–9Zn which was identified as Mg51Zn20. Solid fraction at coherency point decreased with increasing Ca and Zn elements. However, coherency time and difference between the nucleation and coherency temperatures (TN–TDCP) increased by adding Ca and Zn in Mg–Ca and Mg–Ca–Zn systems.
format	Article
author	Farahany, Saeed Bakhsheshi-Rad, Hamid Reza Idris, Mohd. Hasbullah Abdul Kadir, Mohammed Rafiq Lotfabadi, Amir Fereidouni Ourdjini, Ali
author_facet	Farahany, Saeed Bakhsheshi-Rad, Hamid Reza Idris, Mohd. Hasbullah Abdul Kadir, Mohammed Rafiq Lotfabadi, Amir Fereidouni Ourdjini, Ali
author_sort	Farahany, Saeed
title	In-situ thermal analysis and macroscopical characterization of mg-xca and mg-0.5Ca-xzn alloy systems
title_short	In-situ thermal analysis and macroscopical characterization of mg-xca and mg-0.5Ca-xzn alloy systems
title_full	In-situ thermal analysis and macroscopical characterization of mg-xca and mg-0.5Ca-xzn alloy systems
title_fullStr	In-situ thermal analysis and macroscopical characterization of mg-xca and mg-0.5Ca-xzn alloy systems
title_full_unstemmed	In-situ thermal analysis and macroscopical characterization of mg-xca and mg-0.5Ca-xzn alloy systems
title_sort	in-situ thermal analysis and macroscopical characterization of mg-xca and mg-0.5ca-xzn alloy systems
publisher	Elsevier Ltd.
publishDate	2012
url	http://eprints.utm.my/id/eprint/47109/ http://dx.doi.org/10.1016/j.tca.2011.10.027
_version_	1643652236352421888
score	13.211869

In-situ thermal analysis and macroscopical characterization of mg-xca and mg-0.5Ca-xzn alloy systems

Similar Items