Effects of plasma nitriding on mechanical and tribological properties of CoCrMo alloy

ÇELİK A., BAYRAK O. Ü., ALSARAN A., Kaymaz I., YETİM A.

SURFACE & COATINGS TECHNOLOGY, cilt.202, sa.11, ss.2433-2438, 2008 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 202 Sayı: 11
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1016/j.surfcoat.2007.08.030
  • Dergi Adı: SURFACE & COATINGS TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2433-2438
  • Anahtar Kelimeler: plasma nitriding, CoCrMo, orthopedic material, ORTHOPEDIC MATERIALS, ION
  • Atatürk Üniversitesi Adresli: Evet

Özet

Surface treatments of orthopedic materials are commonly used to enhance mechanical and tribological properties. One of the well-known orthopedic materials, wrought CoCrMo alloy was nitrided at various temperatures and time periods at a gas mixture of 75%N-2-25%Ar to achieve these enhancements. SEM, XRD, pin-on-disc tribotester, and microhardness tester have been used to examine the treated materials. Analyses confirm the formation of nitride layers and the significant effect of plasma nitriding on wear rate and surface hardness. (C) 2007 Elsevier B.V. All rights reserved.