STRAIN-RATE-DEPENDENT TENSILE CHARACTERISTICS OF AA2139-T351 ALUMINUM ALLOY

ÇAVUŞOĞLU O., Leacock A. G., GÜRÜN H., GÜRAL A.

MATERIALI IN TEHNOLOGIJE, cilt.51, sa.2, ss.333-338, 2017 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 51 Sayı: 2
  • Basım Tarihi: 2017
  • Doi Numarası: 10.17222/mit.2016.009
  • Dergi Adı: MATERIALI IN TEHNOLOGIJE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.333-338
  • Anahtar Kelimeler: strain rate, tensile strength, aluminium alloys, AA2139-T351, MECHANICAL-PROPERTIES
  • Gazi Üniversitesi Adresli: Evet

Özet

Mechanical properties of sheet materials are affected by the strain conditions. In this study, the influence of the strain rate on the mechanical properties of AA2139-T351 aluminium-alloy sheet materials was studied, by applying uniaxial tensile tests on these materials at four different strain rates (0.03, 0.003, 0.0003, 0.00003) s(-1). Upon analysing the obtained results, it was seen that the elongation, anisotropy value and the load-carrying ability during the necking were reduced, while the AA2139-T351 yield strength, tensile strength, work-hardening coefficient and work-hardening rate were not significantly affected by the increasing strain rate.