Investigation of fatigue properties of shot peened and plasma nitrocarburized P/M FC0205 steel

Başaran A., Kurgan N., VAROL R.

Journal of Mechanical Science and Technology, cilt.27, sa.8, ss.2315-2322, 2013 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 27 Sayı: 8
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1007/s12206-013-0615-8
  • Dergi Adı: Journal of Mechanical Science and Technology
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2315-2322
  • Anahtar Kelimeler: Fatigue strength, Plasma nitrocarburizing, Powder metallurgy, Shot peening
  • Ondokuz Mayıs Üniversitesi Adresli: Hayır

Özet

One of the widely used powder metal materials in automotive industry, which is copper steel FC 0205 (Fe + 2% Cu + 0.5% C), was used in this study. The pressed samples has been prepared at the compression pressure of 680 MPa and sintered in conventional furnace at 1120°C for 30 minutes. The samples with 7 Mg/m3 densities were used as fatigue and shot peening processes. Shot peening were applied with 20A and 32A and the others were not peened. Plasma nitrocarburizing process was performed at 555°C for 2 hours under 600-900 Pa pressure. Fatigue tests were conducted at room temperature on a rotating bending type fatigue test device. It was determined that shot peening should be used where increased fatigue strength is needed, and plasma nitrocarburizing should be preferred where surface hardness is required, and plasma nitrocarburizing after shot peening process is much more useful. © 2013 The Korean Society of Mechanical Engineers and Springer-Verlag Berlin Heidelberg.