Relationship Between the Microstructure and Fracture Toughness of Microalloyed (API 5L X65) Steels

Taş Z.

PRAKTISCHE METALOGRAPHIE, vol.42, no.2005, pp.290-303, 2005 (SCI-Expanded)

  • Publication Type: Article / Article
  • Volume: 42 Issue: 2005
  • Publication Date: 2005
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.290-303
  • Yozgat Bozok University Affiliated: Yes


The present article is intended to examine the relationships between the microstructure and
the fracture mechanical properties. It uses the J integral concept for a characterization of the
properties of fracture mechanics. The microalloyed steels of the X65/API-5L type were used
for this purpose. Some of the individual microstructures were characterized qualitatively,
others quantitatively, by means of a light microscope (LM) and a scanning electron
microscope (SEM). The examinations of the size and distribution of the non-metallic