| Autor: |
Shinya Sasaki, Yoichiro Bekki, Hideo Watanabe, Yoshimasa Takayama, Hajime Kato, Akio Niikura |
| Rok vydání: |
2001 |
| Předmět: |
|
| Zdroj: |
Materials Science Forum. :165-170 |
| ISSN: |
1662-9752 |
| DOI: |
10.4028/www.scientific.net/msf.357-359.165 |
| Popis: |
Superplasticity at relatively low temperatures around 573K has been investigated a severely rolled sheet of an Al-4.2mass%Mg alloy. It was already found that fine recrystallized grains of about 6μm was gotten by annealing for 120s at 573K in a salt bath for the severely rolled sheet. The maximum elongation to failure of 208% is obtained at 563K and 1.4×10 -3 s -1 at a higher heating rate of 5Ks -1 , though the sheet has a small thickness of only 0.1mm. It is suggested from analyses of stress and fracture surface that the elongation for 0.57Ks -1 and 5Ks -1 is attained by different mechanisms. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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