The torsional fretting wear behaviors of artificial cervical disk were studied under different loads (50, 100, and 150 N) and angular displacement amplitudes (±2 deg, ±5 deg, and ±7 deg). The cervical prosthesis was simplified and designed as a ball-on-socket contact with the material configuration of ultrahigh molecular weight polyethylene (UHMWPE) and thermally oxidized titanium alloy. The fretting running regime changed from mixed regime (MR) to slip regime (SR) when the angular displacement increased from 2 deg to 7 deg. The frictional torque became larger with an increasing load at all of the angular displacement amplitudes. Larger load and angular displacement amplitude also led to more severe wear for UHMWPE ball. The damage patterns for titanium socket were only slight scratches and polished tracks on the raised oxide scales. However, the dominant wear mechanism was abrasive and adhesive wear as well as deformation for UHMWPE ball. Hence, titanium socket revealed less severe damage than UHMWPE ball due to the protection of oxide film. Arc-shaped wear scars and scratches appeared in both the central and edge zones of the ball and socket component, which were rather different with that of ball-on-flat. In addition, a new damage pattern, annular stress concentration damage, occurred on the edge of UHMWPE ball characterized by severe abrasive and adhesive wear.
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The Influence of Load and Angular Displacement Amplitude on the Torsional Fretting Wear of a Ball-on-Socket Cervical Disk Model
Song Wang,
Song Wang
Department of Mechanical Engineering,
Tsinghua University,
Beijing 100084, China;
Tsinghua University,
Beijing 100084, China;
Biomechanics and Biotechnology Lab,
Research Institute of Tsinghua University in
Shenzhen,
Shenzhen, 518057, China
Research Institute of Tsinghua University in
Shenzhen,
Shenzhen, 518057, China
Search for other works by this author on:
Yong Li,
Yong Li
School of Material Science and Engineering,
China University of Mining and Technology,
Xuzhou 221116, China
China University of Mining and Technology,
Xuzhou 221116, China
Search for other works by this author on:
Zhenhua Liao,
Zhenhua Liao
Department of Mechanical Engineering,
Tsinghua University,
Beijing 100084, China;
Tsinghua University,
Beijing 100084, China;
Biomechanics and Biotechnology Lab,
Research Institute of Tsinghua University in
Shenzhen,
Shenzhen 518057, China
Research Institute of Tsinghua University in
Shenzhen,
Shenzhen 518057, China
Search for other works by this author on:
Qingliang Wang,
Qingliang Wang
School of Material Science and Engineering,
China University of Mining and Technology,
Xuzhou 221116, China
China University of Mining and Technology,
Xuzhou 221116, China
Search for other works by this author on:
Pingfa Feng,
Pingfa Feng
Department of Mechanical Engineering;
State Key Laboratory of Tribology,
Tsinghua University,
Beijing 100084, China
Tsinghua University,
Beijing 100084, China
Search for other works by this author on:
Weiqiang Liu
Weiqiang Liu
Department of Mechanical Engineering,
Tsinghua University,
Beijing 100084, China;
Tsinghua University,
Beijing 100084, China;
Biomechanics and Biotechnology Lab,
Research Institute of Tsinghua University in
Shenzhen,
Shenzhen 518057, China;
Research Institute of Tsinghua University in
Shenzhen,
Shenzhen 518057, China;
State Key Laboratory of Tribology,
Tsinghua University,
Beijing 100084, China
e-mail: weiqliu@hotmail.com
Tsinghua University,
Beijing 100084, China
e-mail: weiqliu@hotmail.com
Search for other works by this author on:
Song Wang
Department of Mechanical Engineering,
Tsinghua University,
Beijing 100084, China;
Tsinghua University,
Beijing 100084, China;
Biomechanics and Biotechnology Lab,
Research Institute of Tsinghua University in
Shenzhen,
Shenzhen, 518057, China
Research Institute of Tsinghua University in
Shenzhen,
Shenzhen, 518057, China
Yong Li
School of Material Science and Engineering,
China University of Mining and Technology,
Xuzhou 221116, China
China University of Mining and Technology,
Xuzhou 221116, China
Zhenhua Liao
Department of Mechanical Engineering,
Tsinghua University,
Beijing 100084, China;
Tsinghua University,
Beijing 100084, China;
Biomechanics and Biotechnology Lab,
Research Institute of Tsinghua University in
Shenzhen,
Shenzhen 518057, China
Research Institute of Tsinghua University in
Shenzhen,
Shenzhen 518057, China
Qingliang Wang
School of Material Science and Engineering,
China University of Mining and Technology,
Xuzhou 221116, China
China University of Mining and Technology,
Xuzhou 221116, China
Pingfa Feng
Department of Mechanical Engineering;
State Key Laboratory of Tribology,
Tsinghua University,
Beijing 100084, China
Tsinghua University,
Beijing 100084, China
Weiqiang Liu
Department of Mechanical Engineering,
Tsinghua University,
Beijing 100084, China;
Tsinghua University,
Beijing 100084, China;
Biomechanics and Biotechnology Lab,
Research Institute of Tsinghua University in
Shenzhen,
Shenzhen 518057, China;
Research Institute of Tsinghua University in
Shenzhen,
Shenzhen 518057, China;
State Key Laboratory of Tribology,
Tsinghua University,
Beijing 100084, China
e-mail: weiqliu@hotmail.com
Tsinghua University,
Beijing 100084, China
e-mail: weiqliu@hotmail.com
1Corresponding author.
Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received December 22, 2015; final manuscript received June 28, 2016; published online November 9, 2016. Assoc. Editor: Zhong Min Jin.
J. Tribol. May 2017, 139(3): 031602 (13 pages)
Published Online: November 9, 2016
Article history
Received:
December 22, 2015
Revised:
June 28, 2016
Citation
Wang, S., Li, Y., Liao, Z., Wang, Q., Feng, P., and Liu, W. (November 9, 2016). "The Influence of Load and Angular Displacement Amplitude on the Torsional Fretting Wear of a Ball-on-Socket Cervical Disk Model." ASME. J. Tribol. May 2017; 139(3): 031602. https://doi.org/10.1115/1.4034246
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