|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Magnesium Alloy Development: An LMD Symposium in Honor of Karl Kainer
||Development of Ultralight and Ultrafine Grained Mg-4Li-1Ca Alloy for Biomedical and Lightweight Applications
||Saurabh Sanjay Nene, B P Kashyap, N Prabhu, Y. Estrin, T. Al-Samman
|On-Site Speaker (Planned)
||Saurabh Sanjay Nene
We present a new Mg-4Li-1Ca alloy developed with a view to have a bioresorbable implant property that combines low density with favorable mechanical properties and acceptable biocompatibility. Our study shows that the targets set have been achieved. The material possesses a very low density of 1.55 g/cm3 owing to alloying with Li and Ca, which are lighter than Mg. A reasonably high tensile strength of 250 MPa and elongation of 23% were obtained as a result of thermo-mechanical processing by two-step rolling + annealing. These properties are attributed to the formation of refined microstructure (d = 2.5 Ám) and a weak texture (intensity of 3.3 multiples of random distribution). Biodegradation and cell viability on the surface of alloy specimens showed promising response in terms of biocompatibility. These results suggest that alloy LX41 can be considered as a strong competitor amongst Mg alloys currently considered for biomedical and structural lightweight applications.