Influence of microstructure of HC CoCrMo biomedical alloys on the corrosion and wear behaviour in simulated body fluids

被引：64

作者：

Casaban Julian, Leandre ^{[1
]}

Igual Munoz, Anna ^{[1
]}

机构：

[1] Univ Politecn Valencia, Dept Ingn Quim & Nucl, ETSI Ind, E-46071 Valencia, Spain

来源：

TRIBOLOGY INTERNATIONAL | 2011年 / 44卷 / 03期

关键词：

Bio-tribology; Corrosion-wear; Three-body abrasion; Sliding wear; CO-CR-MO; PASSIVE FILM; HIGH-CARBON; IN-VITRO; BIOLOGICAL ENVIRONMENTS; ORTHOPEDIC IMPLANTS; STAINLESS-STEEL; JOINT MATERIALS; SYNOVIAL-FLUID; TITANIUM-ALLOY;

D O I：

10.1016/j.triboint.2010.10.033

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The corrosion and tribological behaviour of an as-cast High Carbon CoCrMo alloy subjected to different thermal treatments in simulated body fluids has been analyzed by electrochemical techniques. After the microstructural characterization of the alloy, the samples were studied electrochemically and tribo-electrochemically. Thermal treatments influence the corrosion behaviour, passive dissolution and tribological response. An increase of grain boundaries accelerates the anodic reaction in all solutions. A higher carbide volume fraction generates a lower wear-rate. Microscopic observation by means of Optical and SEM microscopy showed that presence of proteins modified the debris behaviour. In nonprotein containing solutions particles are dispersed away from the track while in protein solutions particles tend to agglomerate and sediment around the wear track. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：318 / 329

页数：12

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