Details
| Original language | English |
|---|---|
| Pages (from-to) | 930-934 |
| Number of pages | 5 |
| Journal | Steel research international |
| Volume | 76 |
| Issue number | 12 |
| Publication status | Published - Dec 2005 |
Abstract
Magnesium sheets offer high specific properties which make them very attractive in modern light weight constructions. The main obstacles for a wider usage are their high production costs, the poor corrosion properties and the limited ductility. Until today, forming processes have to be conducted at temperatures well above T = 220 °C. In the first place, this is a cost factor. Moreover, technical aspects, such as grain growth or the limited use of lubrication speak against high temperatures. The first aim of the presented research work is to increase the ductility at lower temperatures by alloy modification and by an adapted rolling technology. The key factor to reach Isotropic mechanical properties and increased limit drawing ratios in deep drawing tools, is to achieve fine, homogeneous microstructures. This can be done by cross rolling at moderate temperatures. The heat treatment has to be adapted accordingly. In a second stage, hydro-mechanical deep drawing experiments were carried out at elevated temperature. The results show that the forming behaviour of the tested Mg-alloys is considerably improved compared to conventional deep drawing.
Keywords
- Grain refinement, Hydro-mechanical deep drawing, Magnesium, Rolling, Wrought alloys
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Condensed Matter Physics
- Chemistry(all)
- Physical and Theoretical Chemistry
- Materials Science(all)
- Metals and Alloys
- Materials Science(all)
- Materials Chemistry
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In: Steel research international, Vol. 76, No. 12, 12.2005, p. 930-934.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Hydro-mechanical deep drawing of rolled magnesium sheets
AU - Bach, Friedrich-Wilhelm
AU - Behrens, Bernd-Arno
AU - Rodman, Michael
AU - Vogt, Oliver
AU - Roßberg, Arne
PY - 2005/12
Y1 - 2005/12
N2 - Magnesium sheets offer high specific properties which make them very attractive in modern light weight constructions. The main obstacles for a wider usage are their high production costs, the poor corrosion properties and the limited ductility. Until today, forming processes have to be conducted at temperatures well above T = 220 °C. In the first place, this is a cost factor. Moreover, technical aspects, such as grain growth or the limited use of lubrication speak against high temperatures. The first aim of the presented research work is to increase the ductility at lower temperatures by alloy modification and by an adapted rolling technology. The key factor to reach Isotropic mechanical properties and increased limit drawing ratios in deep drawing tools, is to achieve fine, homogeneous microstructures. This can be done by cross rolling at moderate temperatures. The heat treatment has to be adapted accordingly. In a second stage, hydro-mechanical deep drawing experiments were carried out at elevated temperature. The results show that the forming behaviour of the tested Mg-alloys is considerably improved compared to conventional deep drawing.
AB - Magnesium sheets offer high specific properties which make them very attractive in modern light weight constructions. The main obstacles for a wider usage are their high production costs, the poor corrosion properties and the limited ductility. Until today, forming processes have to be conducted at temperatures well above T = 220 °C. In the first place, this is a cost factor. Moreover, technical aspects, such as grain growth or the limited use of lubrication speak against high temperatures. The first aim of the presented research work is to increase the ductility at lower temperatures by alloy modification and by an adapted rolling technology. The key factor to reach Isotropic mechanical properties and increased limit drawing ratios in deep drawing tools, is to achieve fine, homogeneous microstructures. This can be done by cross rolling at moderate temperatures. The heat treatment has to be adapted accordingly. In a second stage, hydro-mechanical deep drawing experiments were carried out at elevated temperature. The results show that the forming behaviour of the tested Mg-alloys is considerably improved compared to conventional deep drawing.
KW - Grain refinement
KW - Hydro-mechanical deep drawing
KW - Magnesium
KW - Rolling
KW - Wrought alloys
UR - http://www.scopus.com/inward/record.url?scp=29544448203&partnerID=8YFLogxK
U2 - 10.1002/srin.200506119
DO - 10.1002/srin.200506119
M3 - Article
AN - SCOPUS:29544448203
VL - 76
SP - 930
EP - 934
JO - Steel research international
JF - Steel research international
SN - 1611-3683
IS - 12
ER -