The relationships among microstructure, impact toughness and wear resistance in newly developed austempered low alloy white cast iron

Camkerten R., ŞAHİN Ö., YILMAZ T., ÇAKIL D. D., NALÇACI B., ERDOĞAN M.

Journal of Alloys and Compounds, cilt.1010, 2025 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 1010
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1016/j.jallcom.2024.177983
  • Dergi Adı: Journal of Alloys and Compounds
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Public Affairs Index, Civil Engineering Abstracts
  • Anahtar Kelimeler: Austempering, Impact toughness, Low alloy white cast iron (LAWCI), Wear resistance
  • Gazi Üniversitesi Adresli: Evet

Özet

This study investigated the relationships among microstructure, impact toughness, and wear resistance of newly developed Austempered Low Alloy White Cast Iron (ALAWCI). For austempering, the low-alloyed white cast iron samples were austenitized at 900 °C, then quickly quenched into a salt bath at 375 °C and kept at this temperature for different periods in the range of 15–420 min, then cooled to room temperature in still air. Optical, scanning electron microscopes, and XRD analysis were used for microstructural characterization studies. The impact toughness and wear resistance of as cast and austempered samples were determined. Experimental results showed that after austempering heat treatment, the metal carbide network kept its morphology without much change, but the matrix consisted of an ausferritic structure. Austempered low alloy white cast iron exhibited a good combination of impact toughness and wear resistance compared to low alloy as-cast white cast iron.