Microstructural and Fractographical Studies on Quenched and Tempered Armor Steels

Karagoz S., ATAPEK Ş. H. , Yilmaz A.

MATERIALS TESTING, vol.52, no.5, pp.316-322, 2010 (Journal Indexed in SCI) identifier

  • Publication Type: Article / Article
  • Volume: 52 Issue: 5
  • Publication Date: 2010
  • Title of Journal : MATERIALS TESTING
  • Page Numbers: pp.316-322


In this study, a boron-alloyed experimental steel has been rolled to form a sheet product, and an austenization treatment has been performed, followed by rapid quenching and then tempering. By austenization, a homogeneous austenite phase is obtained and a martensitic microstructure is formed after rapid quenching. This kind of microstructure exhibits high hardness, but low toughness. Thus, a tempering heat treatment is applied at a proper temperature (200 degrees C and 600 degrees C) and various times, in order to provide optimum toughness and to develop an ideal combination of strength and toughness.