Effect of plasma nitriding treatment on structural, tribological and electrochemical properties of commercially pure titanium

Celik I., KARAKAN M.

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART H-JOURNAL OF ENGINEERING IN MEDICINE, cilt.230, sa.2, ss.145-152, 2016 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 230 Sayı: 2
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1177/0954411915621342
  • Dergi Adı: PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART H-JOURNAL OF ENGINEERING IN MEDICINE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.145-152
  • Anahtar Kelimeler: Titanium, plasma nitriding, wear, hardness, corrosion, 316L STAINLESS-STEEL, TI-6AL-4V ALLOY, SURFACE MODIFICATION, CORROSION BEHAVIOR, TI6AL4V ALLOY, WEAR, RESISTANCE, OXIDATION, COATINGS, CARBON
  • Atatürk Üniversitesi Adresli: Evet

Özet

In this study, plasma nitriding treatment was applied to commercially pure titanium (Grade 2). Structural properties, electrochemical and tribological behaviours of the nitrided pure titanium specimens were comparatively investigated. Microstructure and morphology of the plasma nitrided specimens were analysed by X-ray diffraction and scanning electron microscopy. Furthermore, corrosion tests were conducted in Ringer's solution, which represents a human body environment, to determine electrochemical properties. Then, tribological and frictional properties were investigated using pin-on-disc tribometer, and a micro-hardness tester was used to measure the hardness of the coatings. The results showed that plasma nitrided specimens exhibited higher surface hardness than the untreated specimens did. In addition, the plasma nitrided specimens at 700 degrees C presented significantly better performance than the other plasma nitrided specimens (at 500 degrees C and 600 degrees C) under dry wear conditions. Moreover, corrosion test results showed that corrosion behaviours of untreated and nitrided samples had similar characteristic.