Effect of Section Thickness on the Microstructure and Hardness of Ductile Cast Iron

GUZEL E., Yuksel C., BAYRAK Y., Sen O., EKERİM A.

MATERIALS TESTING, cilt.56, sa.4, ss.285-288, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 56 Sayı: 4
  • Basım Tarihi: 2014
  • Doi Numarası: 10.3139/120.110558
  • Dergi Adı: MATERIALS TESTING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.285-288
  • Anahtar Kelimeler: Materials testing, ductile iron, section size, microstructure, hardness, GRAPHITE
  • Atatürk Üniversitesi Adresli: Hayır

Özet

Ductile cast irons have several engineering and manufacturing advantages compared to other cast materials such as steels. These include high damping capacity, wear resistance, to and lower manufacturing cost. The combination of good mechanical properties and casting abilities of ductile cast iron makes its usage successful in structural applications especially in the energy and automotive industries. In this study, the influence of the section thickness on the microstructure and hardness of spheroidal graphite cast iron was investigated with a cascaded model using the full mold casting method. By the high linear correlation coefficient, R-2 > 0.90, it was observed that the section thickness directly affected the microstructure and hardness. An increase in the cross-sectional thickness decreases hardness and number of graphite nodules per square millimeters, however, percentage of ferrite was increased.