| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Multi Scale Modeling of Microstructure Deformation in Material Processing
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| Presentation Title |
Hot Deformation Microstructure and Processing Map of Cast Ni-based Superalloy IN-100 |
| Author(s) |
Yusaku Hasebe, Takehito Hagisawa, Satoru Ohsaki, Kazuya Kubo, Cheng Yang, Kenta Aoyagi, Kenta Yamanaka, Akihiko Chiba |
| On-Site Speaker (Planned) |
Yusaku Hasebe |
| Abstract Scope |
In this study, the deformation behavior of the cast Ni-based superalloy IN-100 was investigated at elevated temperature, using the processing map based on the dynamic material model. Flow stress-strain curves were compensated considering the adiabatic heating during hot compression tests in various temperatures and strain rates. Power dissipation efficiency was calculated from the compensated true stress at each temperature and strain rate with the true strain of 0.3. At 1473K, power dissipation increased in the regions of both lower and higher strain rate. At lower strain rate, uniformly recrystallized grain which contains a few strain was observed. On the other hand, at higher strain rate, recrystallized region was observed partially around the local shear band. Change in the recrystallization behavior with varying deformation conditions and a relationship with the processing map will be discussed at the presentation. |