Effect of aging temperature and of retrogression treatment time on the microstructure and mechanical properties of alloy AA 7075


KARAASLAN A., KAYA I., ATAPEK Ş. H.

METAL SCIENCE AND HEAT TREATMENT, cilt.49, ss.443-447, 2007 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 49
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1007/s11041-007-0083-9
  • Dergi Adı: METAL SCIENCE AND HEAT TREATMENT
  • Sayfa Sayısı: ss.443-447

Özet

Alloy AA 7075-T6 is studied after retrogression and re-aging. The retrogression heat treatment is performed at various temperatures and hold times, and subsequent aging is performed at 130 degrees C for 12 h. The microstructure and mechanical properties of the alloy are studied depending on the temperature and the hold time of the retrogression heat treatment. Electron microscopic studies are preformed and mechanical characteristics are determined in tensile and impact tests. The HRB microhardness is measured.