Mechanical properties of Sr inoculated A356 alloy by Taguchi-based gray relational analysis

Osman Yllmaz S., TEKER T., Savas Dalmlş I., Bulus E.

Materialpruefung/Materials Testing, cilt.66, sa.9, ss.1401-1408, 2024 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 66 Sayı: 9
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1515/mt-2024-0279
  • Dergi Adı: Materialpruefung/Materials Testing
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex
  • Sayfa Sayıları: ss.1401-1408
  • Anahtar Kelimeler: A356 alloy, aging, gray relational analysis, mechanical properties, microstructure
  • Sivas Cumhuriyet Üniversitesi Adresli: Evet

Özet

In this study, Sr inoculated A356 alloy casted by sand-casting technique. Production parameters such as Sr concentration (wt.%), aging temperature (°C), aging time (h), and constant cooling rate were used. The effect of heat treatment on the microstructure and mechanical features of inoculated A356 materials was examined by using scanning electron microscopy, optical microscopy, and the Taguchi-based gray relational analysis method. The optimum production parameters for A356 alloy were determined as 0.03 » Sr concentration, aging 300 » °C temperature, and 3 » h aging time. Multiple response optimization based on the interaction of these parameters provided a 30.15 » % improvement in performance. Gray relational grade (GRG) experimental results showed that the most important parameter was Sr concentration, with a contribution of 76.51 » %, according to the analysis by ANOVA statistical method.