Mechanical And Microstructural Aspects Of High Temperature Formability Of AZ31 Sheets
- Dipartimento di Meccanica, Universita Politecnica delle Marche, 60131 Ancona (Italy)
The high temperature formability of AZ31 magnesium alloy sheets has been investigated in the temperature from 150 to 350 deg. C. The different straining conditions have been studied by using sheet blanks with several length to width ratios, and Forming Limit Diagrams were then obtained. As expected, an increase in temperature was observed to enhance the formability of the alloy. These differences in formability observed in the warm- and hot-forming regions were related to the microstructural evolution during deformation. Optical microscopy revealed the occurrence of recrystallization, and the volume fraction of recrystallized microstructure was found to increase with temperature. FEM simulation of the Nakazima test were also obtained by using flow curves obtained in torsion between 100 and 400 deg. C as input data. Correlation between FEM modeling results and experimental data was considered to be excellent.
- OSTI ID:
- 21056990
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 907; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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