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Title: The electrochemical Evaluation of a Zr-Based Bulk Metallic Glass in a Phosphate-Buffered Saline Electrolyte

Abstract

Bulk metallic glasses (BMGs) represent an emerging class of materials with an amorphous structure and a unique combination of properties. The objectives of this investigation were to define the electrochemical behavior of a specific Zr-based BMG alloy in a physiologically relevant environment and to compare these properties to standard, crystalline biomaterials as well as other Zr-based BMG compositions. Cyclic-anodic-polarization studies were conducted with a Zr{sub 52.5}Cu{sub 17.9}Ni{sub 14.6}Al{sub 10.0}Ti{sub 5.0} (at %) BMG in a phosphate-buffered saline electrolyte with a physiologically relevant oxygen content at 37 C. The results were compared to three common, crystalline biomaterials: CoCrMo, 316L stainless steel, and Ti-6Al-4V. The BMG alloy was found to have a lower corrosion penetration rate (CPR), as compared to the 316L stainless steel, and an equivalent CPR, as compared to the CoCrMo and Ti-6Al-4V alloys. Furthermore, the BMG alloy demonstrated better localized corrosion resistance than the 316L stainless steel. However, the localized corrosion resistance of the BMG alloy was not as high as those of the CoCrMo and Ti-6Al-4V alloys in the tested environment. The excellent electrochemical properties demonstrated by the BMG alloy are combined with a low modulus and unparalleled strength. This unique combination of properties dramatically demonstrates the potentialmore » for amorphous alloys as a new generation of biomaterials.« less

Authors:
 [1];  [1];  [1];  [2];  [1];  [1];  [2]
  1. University of Tennessee, Knoxville (UTK)
  2. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1003541
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Journal of Biomedical Materials Research
Additional Journal Information:
Journal Volume: 74; Journal Issue: 3; Journal ID: ISSN 1549-3296
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALLOYS; CORROSION; CORROSION RESISTANCE; ELECTROLYTES; EVALUATION; GLASS; METALLIC GLASSES; OXYGEN; STAINLESS STEELS

Citation Formats

Morrison, M. L., Buchanan, R. A., Leon, R. V., Liu, Chain T, Green, B. A., Liaw, Peter K, and Horton, Jr, Joe A. The electrochemical Evaluation of a Zr-Based Bulk Metallic Glass in a Phosphate-Buffered Saline Electrolyte. United States: N. p., 2005. Web. doi:10.1002/jbm.a.30361.
Morrison, M. L., Buchanan, R. A., Leon, R. V., Liu, Chain T, Green, B. A., Liaw, Peter K, & Horton, Jr, Joe A. The electrochemical Evaluation of a Zr-Based Bulk Metallic Glass in a Phosphate-Buffered Saline Electrolyte. United States. https://doi.org/10.1002/jbm.a.30361
Morrison, M. L., Buchanan, R. A., Leon, R. V., Liu, Chain T, Green, B. A., Liaw, Peter K, and Horton, Jr, Joe A. 2005. "The electrochemical Evaluation of a Zr-Based Bulk Metallic Glass in a Phosphate-Buffered Saline Electrolyte". United States. https://doi.org/10.1002/jbm.a.30361.
@article{osti_1003541,
title = {The electrochemical Evaluation of a Zr-Based Bulk Metallic Glass in a Phosphate-Buffered Saline Electrolyte},
author = {Morrison, M. L. and Buchanan, R. A. and Leon, R. V. and Liu, Chain T and Green, B. A. and Liaw, Peter K and Horton, Jr, Joe A},
abstractNote = {Bulk metallic glasses (BMGs) represent an emerging class of materials with an amorphous structure and a unique combination of properties. The objectives of this investigation were to define the electrochemical behavior of a specific Zr-based BMG alloy in a physiologically relevant environment and to compare these properties to standard, crystalline biomaterials as well as other Zr-based BMG compositions. Cyclic-anodic-polarization studies were conducted with a Zr{sub 52.5}Cu{sub 17.9}Ni{sub 14.6}Al{sub 10.0}Ti{sub 5.0} (at %) BMG in a phosphate-buffered saline electrolyte with a physiologically relevant oxygen content at 37 C. The results were compared to three common, crystalline biomaterials: CoCrMo, 316L stainless steel, and Ti-6Al-4V. The BMG alloy was found to have a lower corrosion penetration rate (CPR), as compared to the 316L stainless steel, and an equivalent CPR, as compared to the CoCrMo and Ti-6Al-4V alloys. Furthermore, the BMG alloy demonstrated better localized corrosion resistance than the 316L stainless steel. However, the localized corrosion resistance of the BMG alloy was not as high as those of the CoCrMo and Ti-6Al-4V alloys in the tested environment. The excellent electrochemical properties demonstrated by the BMG alloy are combined with a low modulus and unparalleled strength. This unique combination of properties dramatically demonstrates the potential for amorphous alloys as a new generation of biomaterials.},
doi = {10.1002/jbm.a.30361},
url = {https://www.osti.gov/biblio/1003541}, journal = {Journal of Biomedical Materials Research},
issn = {1549-3296},
number = 3,
volume = 74,
place = {United States},
year = {2005},
month = {1}
}