Reliability of mechanical properties of induction sintered iron based powder metal parts

ÇİVİ C., Tahrali N., ATİK E.

Materials and Design, vol.53, pp.383-397, 2014 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 53
  • Publication Date: 2014
  • Doi Number: 10.1016/j.matdes.2013.07.034
  • Journal Name: Materials and Design
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.383-397
  • Keywords: Powder metallurgy, Sintering, Induction sintering, Mechanical properties, MicroVickers hardness, Reliability
  • Manisa Celal Bayar University Affiliated: Yes

Abstract

Reliability and safety are important for machine and construction elements. In this study, iron based powder metal parts (3% Cu, 0.5% Graphite and 1% Kenolube lubricant by weight) were sintered at 1200. °C by medium frequency induction sintering mechanism (30. KW powered and 30. kHz frequency). Mechanical property values of components were determined according to changing sintering time. Three point bending, % maximum strain, MicroVickers hardness (HV) and Rockwell-B hardness tests were applied. Statistical distribution functions were drawn and ultimate strength, ultimate strain, MicroVickers and Rockwell-B hardness values were determined depending on various reliability. As a result of the experiments, it was concluded that, the hardness of powder metal materials should not be based on MicroVickers hardness. © 2013 Elsevier Ltd.