Wear behavior of irregular shape ti6al4v powder reinforced with carbon nanotubes


CEYLAN M., Topcu İ.

Journal of Ceramic Processing Research, cilt.21, sa.5, ss.539-546, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 21 Sayı: 5
  • Basım Tarihi: 2020
  • Doi Numarası: 10.36410/jcpr.2020.21.5.539
  • Dergi Adı: Journal of Ceramic Processing Research
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Communication Abstracts, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.539-546
  • Anahtar Kelimeler: Sintering, Ti6Al4V, Carbon Nanotubes, Wear, Ti6Al4V Powder
  • İstanbul Ticaret Üniversitesi Adresli: Evet

Özet

The purpose of this study was to investigate the sintering behavior, microstructural evolution, and the effect on wear resistance of carbon nanotubes (CNT) with the addition of a mechanical alloy (Ti6Al4V) and sintered irregular Ti64 powder. The mechanical alloy powders utilized in this study were produced through the process of CIP (Cold Isostatic Press) in order to produce samples by compress on under various pressures within a 300 MPa floating molded press. The samples were sintered at a high vacuum (10-5 mbar) for 60 minutes at a temperature of 1275oC. After sintering, the materials were characterized using an optic microscope (OM), scanning electron microscopy (SEM) and EDX (Energy-dispersive X-ray spectroscopy) to determine whether the materials had wear resistance, density measurement, etc. The Carbon Nanotube wear and friction behavior were investigated under various conditions using a pin wear tester on a disc followed by a scanning electron microscopy (SEM) analysis. The objective of this study was to evaluate the density, metallographic properties and hardness of Ti64 samples supplemented with different CNT ratios as a function of sintering temperature. Theoretical density and microhardness of mechanical alloyed and sintered irregular Ti64 powders changed with the additions to CNT under increased sintering temperatures.