Mechanical properties of heat treated iron based compacts

Çavdar U., Ünlü B. S., PİNAR A. M., ATİK E.

Materials and Design, cilt.65, ss.312-317, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 65
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1016/j.matdes.2014.09.015
  • Dergi Adı: Materials and Design
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.312-317
  • Manisa Celal Bayar Üniversitesi Adresli: Evet

Özet

In this study, powder metal (PM) compacts were prepared by mixing iron powder with 1-6. wt.% ratio of Cu and 0.2-0.8. wt.% ratio of graphite. The 20 different PM compacts compositions were prepared with a 0.8. wt.% ratio of zinc striate as the lubricant. The dimension of compacts were 10. ×. 10. ×. 55. mm. All the compacts were pressed at 600. MPa and, sintered at 1120. °C for 30. min using a conventional sintering furnace and then boronizing, steaming and carbo-nitriding heat treatments were applied. The results of all compacts for the bending test, microstructure images and HV microhardness results were compared. As a result of the experiments, it was concluded that, the highest bending strength was obtained at carbo-nitrided samples, the highest surface hardness was measured at boronized samples and all these heat treatments increase the densities of iron based samples.