Tensile strength variation of pre-strained aluminium alloy due to annealing
The automobile is a self-propelled vehicle that travels on land. There are many different styles of cars. Today, the automotive industry is one of the biggest in the world. Body of car is a major component part in the automotive manufactured. Aluminium-Magnesium (Al-Mg) alloys have very good form...
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| Format: | Undergraduates Project Papers |
| Language: | English |
| Published: |
2007
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/2254/1/AFDILA_BINTI_AZIZ.PDF http://umpir.ump.edu.my/id/eprint/2254/ |
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| Summary: | The automobile is a self-propelled vehicle that travels on land. There are
many different styles of cars. Today, the automotive industry is one of the biggest in
the world. Body of car is a major component part in the automotive manufactured.
Aluminium-Magnesium (Al-Mg) alloys have very good formability properties and
have been used extensively for interior structural components of automotive body-inwhite
(BIW). However, at elevated temperatures, high diffusivity of Mg atoms
allows easy dislocations rearrangements which lead to reduction of mechanical
strength (softening/thermal recovery). Straining during' press forming process also
the problem in manufactured body of car. The two factors caused the components
made out of Al-Mg alloy sheet to be susceptible to softening during paint bake cycle.
During studies, softening behaviour is under the influences of time, temperature and
pre-strain. The result of this investigation will be useful information for design and
selection stages of Al-Mg sheet alloys because it reveals how much softening
actually occurring as function of temperature and pre-straining. |
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