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Cryogenic forming has significant potential as a novel method for fabricating aluminum alloys, because to its improved formability. Cryogenic deformation of alloys has interesting mechanical properties, but further study is needed to fully understand them. Here, the flow performance and underlying distortion mechanism of AA5052 at cryogenic conditions were extensively analyzed. To develop and modify a constitutive model, uniaxial tensile tests were conducted between 115-299 K at strain rates of 0.00030 to 0.02 s-1. The Erichsen cupping index (IE) values were then analyzed throughout a wide temperature range (299 K, 205 K, and 115 K). A smooth stress-strain curve was achieved below 205 K because dynamic strain aging was suppressed, in contrast to the serrated curve reported between 205 K and 299 K. The alloy's elongation and IE value were approximately 53% and 21% larger, respectively, at 115 K compared to those obtained at 299 K. This was because to the elevated critical dislocation density and persistent deformation that occur at extremely low temperatures. The 31% increase in tensile strength at 115 K is due to cryogenic deformation under high dislocation density. [ABSTRACT FROM AUTHOR]