Electrochemical approch to the development of a simulating physiological environment for strength evaluation of hard tissue replacement materials

Byungjun Lee, Jun Komotori, Masao Shimizu

研究成果: Article

抄録

In this paper, corrosion damage in the modular femoral hip prosthesis which is retrieved from the physiological environment for 58 months after insertion, has been analyzed with the parameter of the square root of projected area of corrosion pit from the view point of fracture mechanics. The effects of the pitting damage on fatigue properties of Ti-6A1-4V alloy was discussed based on the previous experimental result. Accelerated laboratory corrosion testing method which simulates the physiological corrosion environment has been developed on the basis of the results of corrosion test in simulated environment with Ti-6A1-4V alloy. The empirical formula which represents the relationship of applied current, corrosion time and maximum size of corrosion pit (area max) has been proposed.

元の言語English
ページ(範囲)2005-2011
ページ数7
ジャーナルNihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
64
発行部数623
出版物ステータスPublished - 1998
外部発表Yes

Fingerprint

Tissue
Corrosion
Hip prostheses
Pitting
Fracture mechanics
Fatigue of materials
Testing

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

これを引用

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AU - Komotori, Jun

AU - Shimizu, Masao

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AB - In this paper, corrosion damage in the modular femoral hip prosthesis which is retrieved from the physiological environment for 58 months after insertion, has been analyzed with the parameter of the square root of projected area of corrosion pit from the view point of fracture mechanics. The effects of the pitting damage on fatigue properties of Ti-6A1-4V alloy was discussed based on the previous experimental result. Accelerated laboratory corrosion testing method which simulates the physiological corrosion environment has been developed on the basis of the results of corrosion test in simulated environment with Ti-6A1-4V alloy. The empirical formula which represents the relationship of applied current, corrosion time and maximum size of corrosion pit (area max) has been proposed.

KW - Accelerated laboratory corrosion test

KW - Biomaterials

KW - Corrosion

KW - Electrochemistry

KW - Modular femoral hip prosthesis

KW - Pitting damage

KW - Simulating physiological environment

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