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A novel combinatorial approach for understanding microstructural evolution and its relationship to mechanical properties in metallic biomaterials ☆

Paper ID Volume ID Publish Year Pages File Format Full-Text
2241 105 2007 8 PDF Available
Title
A novel combinatorial approach for understanding microstructural evolution and its relationship to mechanical properties in metallic biomaterials ☆
Abstract

The new generation of metallic biomaterials for prosthesis implantation (orthopedic and dental) typically have a Ti base with fully biocompatible alloying additions such as Nb, Ta, Zr, Mo, Fe and Sn. While the binary Ti–Ta and the ternary Ti–Nb–Ta systems are promising, the large composition space afforded by these systems offers tremendous scope in terms of alloy design via optimization of alloy composition and thermomechanical treatment. In the present paper a novel combinatorial approach has been developed for rapidly exploring the microstructural evolution and microstructure–microhardness (or elastic modulus) relationships in these systems. Using directed laser deposition, compositionally graded alloy samples have been fabricated and subsequently heat-treated to affect different microstructures in terms of the volume fraction and distribution of the α phase in the β matrix as a function of composition. Subsequently, composition-specific indentation-based hardness and modulus information has been obtained from these graded samples, and the resulting data have been used to develop relationships between the composition, microstructure and mechanical properties. Such rapid combinatorial assessments can be very useful in optimizing not only the alloy composition but also the desired microstructure for achieving the best combination of properties for specific orthopedic or dental applications.

Keywords
Combinatorial; Orthopedic alloys; Laser processing; Microstructure; Mechanical properties
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A novel combinatorial approach for understanding microstructural evolution and its relationship to mechanical properties in metallic biomaterials ☆
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Publisher
Database: Elsevier - ScienceDirect
Journal: Acta Biomaterialia - Volume 3, Issue 3, May 2007, Pages 369–376
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us