Improved Surface Integrity from Cryogenic Machining of Ti-6Al-7Nb Alloy for Biomedical Applications

Y. Sun; B. Huang; D. A. Puleo; J. Schoop; I. S. Jawahir

doi:10.1016/j.procir.2016.02.362

Improved Surface Integrity from Cryogenic Machining of Ti-6Al-7Nb Alloy for Biomedical Applications

Y. Sun, B. Huang, D. A. Puleo, J. Schoop, I. S. Jawahir

Research output: Contribution to journal › Conference article › peer-review

38 Scopus citations

Abstract

Ti-6Al-7Nb alloy is emerging as an alternative biomedical material for replacing Ti-6Al-4 V alloy used in dental implants and femoral stem prosthesis applications. In cryogenic machining using liquid nitrogen, the surface integrity characteristics of Ti-6Al-7Nb alloy significantly improved compared to dry and flood-cooled machining. This study shows that surface roughness improved in cryogenic machining by 35% and 6.6% respectively, compared with dry and flood-cooled machining. Also, the hardness in the cryogenically-machined surface layer increased, by 33.6% and 14.7%, respectively, compared to dry and flood-cooled machining, with the formation of a severe plastic deformation (SPD) layer with less volume fraction of α-phase.

Original language	English
Pages (from-to)	63-66
Number of pages	4
Journal	Procedia CIRP
Volume	45
DOIs	https://doi.org/10.1016/j.procir.2016.02.362
State	Published - 2016
Event	3rd CIRP Conference on Surface Integrity, CIRP CSI 2016 - Charlotte, United States Duration: Jun 8 2016 → Jun 10 2016

Bibliographical note

Funding Information:
The authors gratefully acknowledge the funding support from National Science Foundation for this research.

Publisher Copyright:
© 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license.

Keywords

Cryogenic machining
Microhardness
Surface integrity

ASJC Scopus subject areas

Control and Systems Engineering
Industrial and Manufacturing Engineering

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10.1016/j.procir.2016.02.362

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title = "Improved Surface Integrity from Cryogenic Machining of Ti-6Al-7Nb Alloy for Biomedical Applications",

abstract = "Ti-6Al-7Nb alloy is emerging as an alternative biomedical material for replacing Ti-6Al-4 V alloy used in dental implants and femoral stem prosthesis applications. In cryogenic machining using liquid nitrogen, the surface integrity characteristics of Ti-6Al-7Nb alloy significantly improved compared to dry and flood-cooled machining. This study shows that surface roughness improved in cryogenic machining by 35% and 6.6% respectively, compared with dry and flood-cooled machining. Also, the hardness in the cryogenically-machined surface layer increased, by 33.6% and 14.7%, respectively, compared to dry and flood-cooled machining, with the formation of a severe plastic deformation (SPD) layer with less volume fraction of α-phase.",

keywords = "Cryogenic machining, Microhardness, Surface integrity",

author = "Y. Sun and B. Huang and Puleo, {D. A.} and J. Schoop and Jawahir, {I. S.}",

note = "Funding Information: The authors gratefully acknowledge the funding support from National Science Foundation for this research. Publisher Copyright: {\textcopyright} 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license.; 3rd CIRP Conference on Surface Integrity, CIRP CSI 2016 ; Conference date: 08-06-2016 Through 10-06-2016",

year = "2016",

doi = "10.1016/j.procir.2016.02.362",

language = "English",

volume = "45",

pages = "63--66",

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T1 - Improved Surface Integrity from Cryogenic Machining of Ti-6Al-7Nb Alloy for Biomedical Applications

AU - Sun, Y.

AU - Huang, B.

AU - Puleo, D. A.

AU - Schoop, J.

AU - Jawahir, I. S.

N1 - Funding Information: The authors gratefully acknowledge the funding support from National Science Foundation for this research. Publisher Copyright: © 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license.

PY - 2016

Y1 - 2016

N2 - Ti-6Al-7Nb alloy is emerging as an alternative biomedical material for replacing Ti-6Al-4 V alloy used in dental implants and femoral stem prosthesis applications. In cryogenic machining using liquid nitrogen, the surface integrity characteristics of Ti-6Al-7Nb alloy significantly improved compared to dry and flood-cooled machining. This study shows that surface roughness improved in cryogenic machining by 35% and 6.6% respectively, compared with dry and flood-cooled machining. Also, the hardness in the cryogenically-machined surface layer increased, by 33.6% and 14.7%, respectively, compared to dry and flood-cooled machining, with the formation of a severe plastic deformation (SPD) layer with less volume fraction of α-phase.

AB - Ti-6Al-7Nb alloy is emerging as an alternative biomedical material for replacing Ti-6Al-4 V alloy used in dental implants and femoral stem prosthesis applications. In cryogenic machining using liquid nitrogen, the surface integrity characteristics of Ti-6Al-7Nb alloy significantly improved compared to dry and flood-cooled machining. This study shows that surface roughness improved in cryogenic machining by 35% and 6.6% respectively, compared with dry and flood-cooled machining. Also, the hardness in the cryogenically-machined surface layer increased, by 33.6% and 14.7%, respectively, compared to dry and flood-cooled machining, with the formation of a severe plastic deformation (SPD) layer with less volume fraction of α-phase.

KW - Cryogenic machining

KW - Microhardness

KW - Surface integrity

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U2 - 10.1016/j.procir.2016.02.362

DO - 10.1016/j.procir.2016.02.362

M3 - Conference article

AN - SCOPUS:84978765815

VL - 45

SP - 63

EP - 66

JO - Procedia CIRP

JF - Procedia CIRP

T2 - 3rd CIRP Conference on Surface Integrity, CIRP CSI 2016

Y2 - 8 June 2016 through 10 June 2016

ER -

Improved Surface Integrity from Cryogenic Machining of Ti-6Al-7Nb Alloy for Biomedical Applications

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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