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Enhanced precipitation hardening of Mg–Ca alloy by Al addition
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2010 (English)In: Scripta Materialia, ISSN 1359-6462, E-ISSN 1872-8456, Vol. 63, no 8, p. 831-834Article in journal (Refereed) Published
Abstract [en]

We report the enhanced precipitation-hardening response of Mg–0.5Ca (wt.%) alloy by microalloying with Al. The peak hardness of 50 HV for the binary alloy was enhanced to 72 HV in a ternary Mg–0.5Ca–0.3Al alloy. Transmission electron microscopy and 3D atom probe analyses confirmed that the improvement in the peak hardness is associated with the dense precipitation of ordered monolayer Guinier–Preston zones and the subsequent formation of Al2Ca causes the over-aging.

Place, publisher, year, edition, pages
2010. Vol. 63, no 8, p. 831-834
Keywords [en]
Magnesium alloys, Precipitation hardening, Aging, Guinier–Preston zone
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:du-31408DOI: 10.1016/j.scriptamat.2010.06.028OAI: oai:DiVA.org:du-31408DiVA, id: diva2:1381216
Available from: 2019-12-20 Created: 2019-12-20 Last updated: 2019-12-20Bibliographically approved

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Publisher's full texthttp://www.sciencedirect.com/science/article/pii/S1359646210004215

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Jayamani, Jayaraj

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