Comparison of mechanical properties of boronized and vanadium carbide coated AISI 1040 steels

ÇALIK A., TAYLAN F., ŞAHİN Ö., UÇAR N.

Indian Journal of Engineering and Materials Sciences, cilt.16, sa.5, ss.326-330, 2009 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 16 Sayı: 5
  • Basım Tarihi: 2009
  • Dergi Adı: Indian Journal of Engineering and Materials Sciences
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.326-330
  • Anahtar Kelimeler: Borides, Boronizing, Impact toughness, Notch, Vanadium carbide coating
  • Hatay Mustafa Kemal Üniversitesi Adresli: Evet

Özet

Comparison of mechanical properties of medium carbon steel AISI 1040 for vanadium carbide coated (VCC) and boronized conditions has been studied by means of microhardness, tensile and impact tests. For the treated steels, the bonding and vanadizing processes have been carried out in the same conditions, i.e., at a temperature of 1210 K for 4 h. The thickness of diffusion layer has been measured as 5 μm and 100 μm for the VCC and the boronized steels, respectively. In laboratory conditions, the VCC steels show considerably higher strength and surface hardening with respect to the untreated and the boronized steels. At the same time, Charpy V-notch impact tests have also been carried out for the steels with and without surface hardening. It is concluded that coating is effective in improving the mechanical performance of AISI 1040 steels.