Ageing response of cold-rolled Al–Cu–Mg alloy
作者: Ivan S. ZuikoRustam Kaibyshev
作者单位: 1Belgorod National Research University, Pobeda 85, Belgorod, 308015, Russia
刊名: Materials Science & Engineering A, 2020, Vol.781
来源数据库: Elsevier Journal
DOI: 10.1016/j.msea.2020.139148
关键词: Aluminium alloysThermomechanical processingMechanical propertiesPrecipitationDeformation structureAgeing
英文摘要: Abstract(#br)This work presents a detailed investigation of the ageing behaviour of AA2519 alloy subjected to cold rolling with reduction of 10–80% ( ε ~0.11–1.61). The impact of pre-straining level and ageing duration on the mechanical performance was elucidated via hardness and tensile testing, DSC and analytical TEM. The increasing rolling reduction followed by ageing reduces the peak age hardening and pronounces softening under over-ageing. This effect of pre-strain on mechanical properties is related to the dependence of a dispersion of plate-shaped precipitates that form on the {001} α and {111} α planes on deformation structure. The results show that prior plastic strain profoundly changes kinetics of the ageing reaction and precipitation sequence. The peak age hardening is...
全文获取路径: Elsevier  (合作)
影响因子:2.108 (2012)

  • rolled 辊轧
  • Cu 
  • Ageing 老化
  • response 响应