Quasi-static Torsional Deformation Behavior of Porous Ti6Al4V alloy

Vamsi Krishna Balla; Shantel Martinez; Ben Tunberg Rogoza; Chase Livingston; Deepak Venkateswaran; Susmita Bose; Amit Bandyopadhyay

doi:10.1016/j.msec.2011.02.016

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Quasi-static Torsional Deformation Behavior of Porous Ti6Al4V alloy

Journal article

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Quasi-static Torsional Deformation Behavior of Porous Ti6Al4V alloy

Vamsi Krishna Balla, Shantel Martinez, Ben Tunberg Rogoza, Chase Livingston, Deepak Venkateswaran, Susmita Bose and Amit Bandyopadhyay

Materials science & engineering. C, Materials for biological applications, Vol.31(5), pp.945-949

07/20/2011

DOI: https://doi.org/10.1016/j.msec.2011.02.016

Handle:

https://hdl.handle.net/2376/105527

PMCID: PMC3131073

PMID: 21743777

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Abstract

porous material

titanium alloy

deformation

laser deposition

torsion test

Laser processed Ti6Al4V alloy samples with total porosities of 0%, 10% and 20% have been subjected to torsional loading to determine mechanical properties and to understand the deformation behavior. The torsional yield strength and modulus of porous Ti alloy samples was found to be in the range of 185-332 MPa and 5.7-11 GPa, respectively. With an increase in the porosity both the strength and the modulus decreased, and at 20% porosity the torsional modulus of Ti6Al4V alloy was found to be very close to that of human cortical bone. Further, the experiments revealed clear strain hardening and ductile deformation in all the samples, which suggests that the inherent brittleness associated solid-state sintered porous materials can be completely eliminated via laser processing for load bearing metal implant applications.

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Title: Quasi-static Torsional Deformation Behavior of Porous Ti6Al4V alloy
Creators: Vamsi Krishna Balla - W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA
Shantel Martinez - School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA 99164, USA
Ben Tunberg Rogoza - School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA 99164, USA
Chase Livingston - School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA 99164, USA
Deepak Venkateswaran - School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA 99164, USA
Susmita Bose - W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA
Amit Bandyopadhyay - W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA
Publication Details: Materials science & engineering. C, Materials for biological applications, Vol.31(5), pp.945-949
Academic Unit: Mechanical and Materials Engineering, School of
Grant note: R01 EB007351-01A1 || EB / National Institute of Biomedical Imaging and Bioengineering : NIBIB
Identifiers: 99900546845001842
Language: English
Resource Type: Journal article