Superplasticity and superplastic forming of Mg–Al–Zn alloy sheets fabricated by strip casting method

Tensile flow behavior of fine-grained AZ31B magnesium alloy thin sheet at elevated temperatures

“…Therefore, hot deformation processes have been frequently proposed for Mg alloys to improve formability [1][2][3]. The tensile testing experiments performed in AZ31 Mg alloys show a decrease in flow stress and an increase in the ductility at elevated temperatures and low strain rates [4][5][6][7][8]. Kim et al [8] examined the tensile behavior of the finegrained Mg-Al-Zn alloy sheets with an average grain size of 6.6 m and reported that elongation increases markedly with the increasing temperature and decreasing strain rate.…”

Warm negative incremental forming of magnesium alloy AZ31 Sheet: New lubricating method

“…However, the rolled AZ31 alloys offer good mechanical properties with good balance between strength and ductility, and excellent formability at elevated temperature because nonbasal slip systems become active in addition to basal slip such as hot drawing forming (Hai et al, 2008), gas bulging forming (Kim et al, 2008) and warm SPIF process (Ji and Park, 2008;Ambrogio et al, 2008).…”

Effect of pressurization profile on the deformation characteristics of fine-grained AZ31B Mg alloy sheet during gas blow forming

“…This result implies that for a fine-grained AZ31B Mg alloy, the dislocation creep can be the controlling mechanism and QPF could be a possible gas blow forming process to reduce forming time. Kim et al (2008) studied the superplastic formability of an AZ31 alloy sheet produced by the strip casting and subsequent hot-rolling using a two-step pressurization profile. It took about 0924-0136/$ -see front matter © 2010 Elsevier B.V. All rights reserved.…”