Multi response optimization of welding and tempering parameters of 10mm thick dissimilar sheet steels

Sancar Y., Sarıkavak Y.

METAL SCIENCE AND HEAT TREATMENT, cilt.66, sa.11-12, ss.693-700, 2025 (SCI-Expanded, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 66 Sayı: 11-12
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1007/s11041-025-01105-w
  • Dergi Adı: METAL SCIENCE AND HEAT TREATMENT
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, Compendex, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.693-700
  • Ankara Yıldırım Beyazıt Üniversitesi Adresli: Evet

Özet

The effect of technological parameters of gas metal arc welding with SG2 electrode wire and subsequent

tempering on the structure and mechanical properties of multi-pass welded joints from dissimilar sheet steels

St37-2 and St52-3 with a thickness of 10 mm has been studied. To optimize the technological conditions of

welding and heat treatment during the experiments, a systematic approach with three level variables of

parameters for the Taguchi orthogonal array was used, where mechanical properties (tensile tests, hardness

and impact strength) and microstructural characteristics (optical metallography, SEM, XRD) are investigated.

The contribution of each welding and tempering variable was evaluated, and optimized with Grey relational

analysis. It was found that that changing the arc voltage during welding has the greatest impact on the

mechanical properties, and the tempering process after welding increases the plastic characteristics of welded

joints.