Tribocorrosion behavior of hot pressed CoCrMo alloys in artificial saliva

M. Buciumeanu; A. Bagheri; J. C.M. Souza; F. S. Silva; B. Henriques

doi:10.1016/j.triboint.2016.02.007

Tribocorrosion behavior of hot pressed CoCrMo alloys in artificial saliva

M. Buciumeanu^*, A. Bagheri, J. C.M. Souza, F. S. Silva, B. Henriques

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

50 Citations (Scopus)

Abstract

The aim of this work was to investigate the influence of the processing conditions on the tribocorrosion behavior of hot pressed CoCrMo biomedical alloys. Several samples were processed as a function of different processing temperatures (900, 1000 and 1100 °C) and times (10, 30 and 60 min). Tribocorrosion tests were carried out in artificial saliva at 37 °C, under 1 N normal load, 1 Hz frequency and 3 mm stroke length. Open circuit potential was measured. The worn surfaces were inspected by means of SEM/EDS. Results revealed a decrease of wear rate with increasing hot pressing time. The samples hot pressed at 1000 °C revealed the lowest wear rate. These findings showed that the processing conditions play a relevant role on tribocorrosion behavior of CoCrMo.

Original language	English
Pages (from-to)	423-430
Number of pages	8
Journal	Tribology International
Volume	97
DOIs	https://doi.org/10.1016/j.triboint.2016.02.007
Publication status	Published - 1 May 2016
Externally published	Yes

Keywords

Biomedical applications
CoCrMo alloy
Hot pressing
Tribocorrosion

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.triboint.2016.02.007

Cite this

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title = "Tribocorrosion behavior of hot pressed CoCrMo alloys in artificial saliva",

abstract = "The aim of this work was to investigate the influence of the processing conditions on the tribocorrosion behavior of hot pressed CoCrMo biomedical alloys. Several samples were processed as a function of different processing temperatures (900, 1000 and 1100 °C) and times (10, 30 and 60 min). Tribocorrosion tests were carried out in artificial saliva at 37 °C, under 1 N normal load, 1 Hz frequency and 3 mm stroke length. Open circuit potential was measured. The worn surfaces were inspected by means of SEM/EDS. Results revealed a decrease of wear rate with increasing hot pressing time. The samples hot pressed at 1000 °C revealed the lowest wear rate. These findings showed that the processing conditions play a relevant role on tribocorrosion behavior of CoCrMo.",

keywords = "Biomedical applications, CoCrMo alloy, Hot pressing, Tribocorrosion",

author = "M. Buciumeanu and A. Bagheri and Souza, {J. C.M.} and Silva, {F. S.} and B. Henriques",

year = "2016",

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doi = "10.1016/j.triboint.2016.02.007",

language = "English",

volume = "97",

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journal = "Tribology International",

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TY - JOUR

T1 - Tribocorrosion behavior of hot pressed CoCrMo alloys in artificial saliva

AU - Buciumeanu, M.

AU - Bagheri, A.

AU - Souza, J. C.M.

AU - Silva, F. S.

AU - Henriques, B.

PY - 2016/5/1

Y1 - 2016/5/1

N2 - The aim of this work was to investigate the influence of the processing conditions on the tribocorrosion behavior of hot pressed CoCrMo biomedical alloys. Several samples were processed as a function of different processing temperatures (900, 1000 and 1100 °C) and times (10, 30 and 60 min). Tribocorrosion tests were carried out in artificial saliva at 37 °C, under 1 N normal load, 1 Hz frequency and 3 mm stroke length. Open circuit potential was measured. The worn surfaces were inspected by means of SEM/EDS. Results revealed a decrease of wear rate with increasing hot pressing time. The samples hot pressed at 1000 °C revealed the lowest wear rate. These findings showed that the processing conditions play a relevant role on tribocorrosion behavior of CoCrMo.

AB - The aim of this work was to investigate the influence of the processing conditions on the tribocorrosion behavior of hot pressed CoCrMo biomedical alloys. Several samples were processed as a function of different processing temperatures (900, 1000 and 1100 °C) and times (10, 30 and 60 min). Tribocorrosion tests were carried out in artificial saliva at 37 °C, under 1 N normal load, 1 Hz frequency and 3 mm stroke length. Open circuit potential was measured. The worn surfaces were inspected by means of SEM/EDS. Results revealed a decrease of wear rate with increasing hot pressing time. The samples hot pressed at 1000 °C revealed the lowest wear rate. These findings showed that the processing conditions play a relevant role on tribocorrosion behavior of CoCrMo.

KW - Biomedical applications

KW - CoCrMo alloy

KW - Hot pressing

KW - Tribocorrosion

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U2 - 10.1016/j.triboint.2016.02.007

DO - 10.1016/j.triboint.2016.02.007

M3 - Article

SN - 0301-679X

VL - 97

SP - 423

EP - 430

JO - Tribology International

JF - Tribology International

ER -

Tribocorrosion behavior of hot pressed CoCrMo alloys in artificial saliva

Abstract

Keywords

UN SDGs

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