Widyani Darham, Mahesh Kumar Talari, Ahmad Lutfi Anis, Nagumothu Kishore Babu,
Impression Creep of Mg-1.5Ca and Mg-3.0Ca Alloys,
Journal of Engineering and Applied Sciences,
Volume 11,Issue 12,
2016,
Pages 2573-2576,
ISSN 1816-949x,
jeasci.2016.2573.2576,
(https://makhillpublications.co/view-article.php?doi=jeasci.2016.2573.2576)
Abstract: Mg-1.5Ca and Mg-3.0Ca alloys have been successfully synthesized using argon arc melting method.
SEM and XRD were used to analyse the microstructure of the alloys. Creep resistance of the Mg-Ca alloys were
investigated using impression creep technique at 423-523 K under constant stress of 357 MPa. Creep resistance
for the Mg alloy enhanced with addition of Ca. Activation energies were calculated and found to be 142.5 and
108.4 kJ mol1 for Mg-1.5Ca and Mg-3.0Ca samples, respectively. Microstructures in both alloys showed
eutectic mixtures containing fine Mg2Ca and α-Mg phases at both interdendritic and inter-grain regions.
Keywords: Mg-Ca alloys;impression creep;mixtures;samples;regions