New hot rolled Mg-4Li-1Ca alloy: A potential candidate for automotive and biodegradable implant applications

Magnesium alloys have come to the fore as attractive lightweight structural materials owing to their high specific strength, whilst some of them are considered for bioresorbable implant applications. A new Mg-4Li-1Ca (LX41) alloy, processed by two-step rolling followed by annealing, showed extraordi...

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Bibliographic Details
Published in:Materials letters 2016-06, Vol.173, p.252-256
Main Authors: Estrin, Y., Nene, S.S., Kashyap, B.P., Prabhu, N., Al-Samman, T.
Format: Article
Language:English
Subjects:
Biomedical materials
Bones
Cytocompatibility
Fuel consumption
Grain boundaries
Implants
Lightweight
Magnesium base alloys
Mg-4Li-1Ca alloy
Strain hardening ability
Strength
Two step rolling
Weight reduction
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Summary:Magnesium alloys have come to the fore as attractive lightweight structural materials owing to their high specific strength, whilst some of them are considered for bioresorbable implant applications. A new Mg-4Li-1Ca (LX41) alloy, processed by two-step rolling followed by annealing, showed extraordinary properties outperforming the existing Mg alloys in terms of specific strength, strain hardening ability, ductility, and cytocompatibility. The record-breaking superiority in mechanical properties combined with cytocompatibility qualifies the alloy for applications in lightweight engineering structures and bone implants. •This work is a successful attempt at developing a new ultralight Mg-4Li-1Ca alloy.•The proposed processing schedule resulted in an extraordinary property profile.•A very good combination of specific strength and cytocompatibility was achieved.•The alloy is a promising candidate for automotive and bioimplant applications.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2016.03.052