Gas blow forming ofAZ31 magnesium alloy sheet in a heart-shaped closed die
The deformation characteristics of heartshaped AZ31 magnesium alloy part with a thickness of 1.0mm were investigated using superplastic gas blow forming in the present work. A heart-shaped part was formed successfully by gas blow forming at 340℃. with a strain rate 5×10-3S-1.. The thickness distribution, grain size and cavitation characteristics were investigated to seek proper superplastic forming mechanism. In addition, another heart-shaped part was also formed by gas blow forming with 1.5MPa at 340℃. SEM image of fracture surface of this part was observed. The results show that grain boundary sliding with vacancy diffusion plays a dominant role during superplastic deformation; meanwhile dynamic recrystallization has taken place during superplastic deformation.
AZ31 magnesium alloy superplasticity gas blow forming heart-shaped part
Yandong YU Peng Jiang Caixia Li Changping Chen
School of Materials Science and Engineering,Harbin University of Science and Technology,Harbin,150040,China
国际会议
The 6th International Forum on Strategic Technology(IFOST 2011)(第六届国际战略技术论坛)
哈尔滨
英文
186-189
2011-08-22（万方平台首次上网日期，不代表论文的发表时间）