| Title |
Mechanical Behaviors : Mechanical Properties of A1100 Aluminum Alloy Sheets Manufactured by Accumulative Roll Bonding ( ARB ) Process |
| Authors |
김향욱(Hyoung Wook Kim),진선화(Sun Hwa Jin),강석봉(Suk Bong Kang) |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Abstract |
In this study, the microstructure and mechanical properties of A1100 aluminum alloy sheets manufactured by the Accumulative Roll Bonding(ARB) process were investigated. Hot rolled A1100 sheets were highly strained up to a true strain of 6.32 at room temperature by the ARB process. These sheets were recrystallized at the temperature range of 150℃ to 400℃ for 1hr. The ARB process was repeated up to 6 cycles and well bonded sheets were obtained successfully. The hardness and tensile strength of 6th ARBed specimen(true strain : 6.32) are three times higher than those of a hot rolled sheet. After recrystallization treatment at 200℃, the specimen has ultra-fine grain structures with grain size of less than 1 ㎛. In case of annealing at 300℃ for 1hr., the microstructures of the specimens consist of fully recrystallized grain structure with the grain size less than 7 ㎛. |