The Effect of Milling Time on Structural, Friction and Wear Behavior of Hot Isostatically Pressed Ti–Ni Alloys for Orthopedic Applications

Mamoun Fellah*, Naouel Hezil, Mohammed Abdul Samad, Mohamed Zine Touhami, Alex Montagne, Alain Iost, Alberto Mejias, Stephania Kossman

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

11 Scopus citations

Abstract

The focus of the present research is to evaluate the effect of milling times (2–48 h) on and tribological behavior of HIPed Ti–Ni. The structural evolution, mechanical properties and tribological behavior of the milled Ti–Ni alloys were evaluated in simulated body fluid (Ringer’s solution at 37 °C), using XRD, SEM and ball-on-disk tribometer. The wear tests were carried out in accordance with the ASTMG 99, ASTM G 133–95 and ISO 7148-1:2012 standards under different applied loads. Experimental results indicated that structural evolution and morphological changes of the milled alloys were sensitive to their milling times. The morphological characterization showed that the crystallite size and the particle size decrease with increasing milling time reaching the lowest values at high milling times. The coefficient of friction and wear rate was lower at high milling time. This improvement is attributed to the closed porosity and grain refinement.

Original languageEnglish
Title of host publicationTMS 2019 148th Annual Meeting and Exhibition Supplemental Proceedings
PublisherSpringer International Publishing
Pages865-875
Number of pages11
ISBN (Print)9783030058609
DOIs
StatePublished - 2019

Publication series

NameMinerals, Metals and Materials Series
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696

Bibliographical note

Publisher Copyright:
© 2019, The Minerals, Metals & Materials Society.

Keywords

  • Milling time
  • Ti–Ni alloy
  • Tribological tests
  • Wear testing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy Engineering and Power Technology
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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