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Title: Mechanical, corrosion, and wear properties of biomedical Ti–Zr–Nb–Ta–Mo high entropy alloys

Abstract

The microstructures, mechanical, corrosion, and wear behaviors of the TixZrNbTaMo (x = 0.5, 1, 1.5, and 2, molar ratio) high entropy alloys (HEAs) were studied in this work. It was found that the Ti–Zr–Nb–Ta–Mo HEAs showed a dendrite structure with two body-centered-cubic (BCC) solid solution phases. The Ti0.5ZrNbTaMo HEA exhibited a high hardness of about 500 HV, high compressive strength approaching 2,600 MPa, and large plastic strain of over 30%. Furthermore, the highly-protective oxide films formed on the surface of Ti–Zr–Nb–Ta–Mo HEAs in the phosphate buffer saline (PBS) solution, which resulted in the high corrosion resistance of the HEAs. The Ti–Zr–Nb–Ta–Mo HEAs exhibited the greater dry- and wet-wear resistance than that of the traditional biomedical Ti6Al4V alloy. The results also indicated that with the decrease in the Ti content, the wear resistance of the Ti–Zr–Nb–Ta–Mo HEAs in the PBS solution improved. Finally, the Ti0.5ZrNbTaMo alloy presented the highest corrosive wear resistance among the four HEAs owing to its combination of good mechanical properties and high chemical stability.

Authors:
 [1];  [1];  [1];  [2];  [1];  [1];  [1];  [2];  [2]
  1. Fujian Univ. of Technology, Fuzhou (China)
  2. Univ. of Tennessee, Knoxville, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE; National Natural Science Foundation of China (NNSFC); Natural Science Foundation of Fujian Province; New Century Excellent Talents in University of Fujian Province; National Science Foundation (NSF); US Army Research Office (ARO)
OSTI Identifier:
1769231
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Alloys and Compounds
Additional Journal Information:
Journal Volume: 861; Journal Issue: 1; Journal ID: ISSN 0925-8388
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; High entropy alloys; Wear; Corrosive wear; Polarization; Mechanical properties

Citation Formats

Hua, Nengbin, Wang, Wenjie, Wang, Qianting, Ye, Youxiong, Lin, Sihan, Zhang, Lei, Guo, Qiaohang, Brechtl, Jamieson, and Liaw, Peter K. Mechanical, corrosion, and wear properties of biomedical Ti–Zr–Nb–Ta–Mo high entropy alloys. United States: N. p., 2021. Web. doi:10.1016/j.jallcom.2020.157997.
Hua, Nengbin, Wang, Wenjie, Wang, Qianting, Ye, Youxiong, Lin, Sihan, Zhang, Lei, Guo, Qiaohang, Brechtl, Jamieson, & Liaw, Peter K. Mechanical, corrosion, and wear properties of biomedical Ti–Zr–Nb–Ta–Mo high entropy alloys. United States. https://doi.org/10.1016/j.jallcom.2020.157997
Hua, Nengbin, Wang, Wenjie, Wang, Qianting, Ye, Youxiong, Lin, Sihan, Zhang, Lei, Guo, Qiaohang, Brechtl, Jamieson, and Liaw, Peter K. 2021. "Mechanical, corrosion, and wear properties of biomedical Ti–Zr–Nb–Ta–Mo high entropy alloys". United States. https://doi.org/10.1016/j.jallcom.2020.157997.
@article{osti_1769231,
title = {Mechanical, corrosion, and wear properties of biomedical Ti–Zr–Nb–Ta–Mo high entropy alloys},
author = {Hua, Nengbin and Wang, Wenjie and Wang, Qianting and Ye, Youxiong and Lin, Sihan and Zhang, Lei and Guo, Qiaohang and Brechtl, Jamieson and Liaw, Peter K.},
abstractNote = {The microstructures, mechanical, corrosion, and wear behaviors of the TixZrNbTaMo (x = 0.5, 1, 1.5, and 2, molar ratio) high entropy alloys (HEAs) were studied in this work. It was found that the Ti–Zr–Nb–Ta–Mo HEAs showed a dendrite structure with two body-centered-cubic (BCC) solid solution phases. The Ti0.5ZrNbTaMo HEA exhibited a high hardness of about 500 HV, high compressive strength approaching 2,600 MPa, and large plastic strain of over 30%. Furthermore, the highly-protective oxide films formed on the surface of Ti–Zr–Nb–Ta–Mo HEAs in the phosphate buffer saline (PBS) solution, which resulted in the high corrosion resistance of the HEAs. The Ti–Zr–Nb–Ta–Mo HEAs exhibited the greater dry- and wet-wear resistance than that of the traditional biomedical Ti6Al4V alloy. The results also indicated that with the decrease in the Ti content, the wear resistance of the Ti–Zr–Nb–Ta–Mo HEAs in the PBS solution improved. Finally, the Ti0.5ZrNbTaMo alloy presented the highest corrosive wear resistance among the four HEAs owing to its combination of good mechanical properties and high chemical stability.},
doi = {10.1016/j.jallcom.2020.157997},
url = {https://www.osti.gov/biblio/1769231}, journal = {Journal of Alloys and Compounds},
issn = {0925-8388},
number = 1,
volume = 861,
place = {United States},
year = {2021},
month = {11}
}

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