Influence of retrogression and re-ageing on the mechanical and corrosion properties of 7039 aluminium alloy

Saǧlam U., Baydoğan M., MİNDİVAN H., Kayali E. S., Çimenoğlu H.

Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques, cilt.95, sa.1, ss.14-17, 2004 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 95 Sayı: 1
  • Basım Tarihi: 2004
  • Doi Numarası: 10.3139/146.017913
  • Dergi Adı: Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.14-17
  • Anahtar Kelimeler: Aluminium alloy 7039, Corrosion, Re-ageing, Retrogression, Stress corrosion
  • Bilecik Şeyh Edebali Üniversitesi Adresli: Hayır

Özet

The effect of T6 and retrogression and re-ageing (RRA) treatments on the corrosion and mechanical properties of a 7039 Al alloy was examined. T6- and RRA-tempered alloys exhibited a similar intergranular corrosion resistance for a retrogression time of 3 min at 220°C. The results revealed that an RRA-tempered alloy (3 min retrogression at 220°C followed by re-ageing) exhibited a higher hardness and strength and a lower ductility and toughness than a T6-tempered alloy with a significant improvement in the stress corrosion cracking resistance.