Processing Map and Microstructure Evaluations of AA6061-Al2O3 Nanocomposite at Different Temperatures
نویسنده:
, , , , , ,سال
: 2017
چکیده: Hot compression behavior of Al6061/Al2O3nanocomposite was investigated in the temperature range of 350−500 °C and the strain rate range of 0.0005−0.5 s−1, in order to determine the optimum conditions for the hot workability of nanocomposite. The activation energy of 285 kJ/mol for the hot compression test is obtained by using hyperbolic sine function. By means of dynamicmaterial model (DMM) and the orresponding processing map, safe zone for the hot workability of AA6061/Al2O3is recognized at temperature of 450 °C and strain rate of 0.0005 s−1 and at temperature of 500 °C and the strain rate range of 0.0005−0.5 s−1, with the maximum power dissipation efficiency of 38%. Elongated and kinked grains are observed at 400 °C and strain rate of 0.5 s−1due to the severe deformation.
کلیدواژه(گان): Nanocomposite,hot compression test,processing map,dynamic recrystallization,instability flow
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:
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Processing Map and Microstructure Evaluations of AA6061-Al2O3 Nanocomposite at Different Temperatures
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| contributor author | H. R. Ezatpour | en |
| contributor author | سیدعبدالکریم سجادی | en |
| contributor author | محسن حدادسبزوار | en |
| contributor author | A. Chaichi | en |
| contributor author | G. R. Ebrahimi | en |
| contributor author | Seyed Abdolkarim Sajjadi | fa |
| contributor author | Mohsen Haddad Sabzevar | fa |
| date accessioned | 2020-06-06T13:35:35Z | |
| date available | 2020-06-06T13:35:35Z | |
| date issued | 2017 | |
| identifier uri | https://libsearch.um.ac.ir:443/fum/handle/fum/3361173 | |
| description abstract | Hot compression behavior of Al6061/Al2O3nanocomposite was investigated in the temperature range of 350−500 °C and the strain rate range of 0.0005−0.5 s−1, in order to determine the optimum conditions for the hot workability of nanocomposite. The activation energy of 285 kJ/mol for the hot compression test is obtained by using hyperbolic sine function. By means of dynamicmaterial model (DMM) and the orresponding processing map, safe zone for the hot workability of AA6061/Al2O3is recognized at temperature of 450 °C and strain rate of 0.0005 s−1 and at temperature of 500 °C and the strain rate range of 0.0005−0.5 s−1, with the maximum power dissipation efficiency of 38%. Elongated and kinked grains are observed at 400 °C and strain rate of 0.5 s−1due to the severe deformation. | en |
| language | English | |
| title | Processing Map and Microstructure Evaluations of AA6061-Al2O3 Nanocomposite at Different Temperatures | en |
| type | Journal Paper | |
| contenttype | External Fulltext | |
| subject keywords | Nanocomposite | en |
| subject keywords | hot compression test | en |
| subject keywords | processing map | en |
| subject keywords | dynamic recrystallization | en |
| subject keywords | instability flow | en |
| journal title | Transactions of Nonferrous Metals Society of China | fa |
| pages | 1248-1256 | |
| journal volume | 27 | |
| journal issue | 6 | |
| identifier link | https://profdoc.um.ac.ir/paper-abstract-1063478.html | |
| identifier articleid | 1063478 |