Revealing the composite fretting-corrosion mechanisms of Ti6Al4V alloy against zirconia-toughened alumina ceramic in simulated body fluid

Jian Pu; Yali Zhang; Xiaogang Zhang; Xiaoyu Zhang; Xinlu Yuan; Zhongyi Wang; Guoxian Zhang; Wen Cui; Zhongmin Jin

doi:10.1016/j.jmbbm.2023.106074

Revealing the composite fretting-corrosion mechanisms of Ti6Al4V alloy against zirconia-toughened alumina ceramic in simulated body fluid

J Mech Behav Biomed Mater. 2023 Oct:146:106074. doi: 10.1016/j.jmbbm.2023.106074. Epub 2023 Aug 14.

Authors

Jian Pu¹, Yali Zhang², Xiaogang Zhang¹, Xiaoyu Zhang¹, Xinlu Yuan³, Zhongyi Wang⁴, Guoxian Zhang¹, Wen Cui⁵, Zhongmin Jin⁶

Affiliations

¹ School of Mechanical Engineering, Southwest Jiaotong University, Sichuan, Chengdu, 610031, China.
² School of Mechanical Engineering, Southwest Jiaotong University, Sichuan, Chengdu, 610031, China. Electronic address: zhangyali@swjtu.edu.cn.
³ School of Mechanical Engineering, Chengdu University, Sichuan, Chengdu, 610106, China.
⁴ Jiangsu Key Laboratory of Oral Diseases, Affiliated Hospital of Stomatology of Nanjing Medical University, Jiangsu Nanjing, Jiangsu, Nanjing, 210029, China.
⁵ Beijing AKEC Medical Co., Ltd., Beijing, 102200, China; School of Materials Science and Engineering, Peking University, Beijing, 100871, China.
⁶ School of Mechanical Engineering, Southwest Jiaotong University, Sichuan, Chengdu, 610031, China; School of Mechanical Engineering, University of Leeds, Leeds, LS2 9JT, UK.

PMID: 37591055
DOI: 10.1016/j.jmbbm.2023.106074

Abstract

The composite fretting-corrosion damage due to combinations of radial, tangential, rotational, and other fretting causes local adverse tissue reactions and failure of artificial joints. Previous studies have mainly focused on the single fretting mode, while ignoring the coupled effects of multimode fretting. The fretting-corrosion mechanisms between the components are not yet fully understood. In this study, the tangential-radial composite fretting was realized by applying a normal alternating load to the tangential fretting. The composite fretting corrosion behavior of zirconia toughened alumina ceramic/Ti6Al4V alloy used for the head-neck interface of an artificial hip joint under simulated body fluid was investigated. The effects of displacement and alternating load amplitude were considered. The alternating load amplitude was given by the maximum normal load and minimum normal load ratio R. The results showed that the composite fretting damage mechanisms of this pair were mainly abrasion and tribocorrosion. Cracking also existed under large displacement. The effect of alternating load on fretting corrosion was found to be mainly caused by changes in the contact area and instantaneous contact state. In addition, the alternating load during the composite fretting promoted the formation of the three-body layer in the contact area. A decrease in load ratio caused fretting to change from gross to partial slip. In the case of small displacement, the load ratio had little effect on the friction work or wear scar profile. The corrosion rate of materials and the concentration of metal ions released into the solution increased as load ratio decreased. In cases of large and medium displacement, load ratio reduction increased the friction work and expanded the wear scar. The reduction in load ratio also caused the corrosion rate of the material to increase and then decrease, and the metal ion concentration decreased.

Keywords: Alternating load; Artificial hip joint; Composite tangential-radial fretting corrosion; Damage mechanism.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Alloys
Aluminum Oxide
Body Fluids*
Cicatrix*
Corrosion
Humans

Substances

titanium alloy (TiAl6V4)
zirconium oxide
Alloys
Aluminum Oxide