|
|||||
|
|
Superplasticity in intermetallic NiAl nanowires via atomistic simulations |
|
| Authors: | Vijay Kumar Sutrakar D. Roy Mahapatra |
| Affiliation: | a Mechanical Engineering Design Division, Aeronautical Development Establishment, Defence Research and Development Organization, New Thipasandara Post, Bangalore 560075, India b Department of Aerospace Engineering, Indian Institute of Science, Bangalore 560012, India |
| Abstract: | A novel superplastic deformation in an intermetallic B2-NiAl nanowire of cross-sectional dimensions of ∼ 20 Å with failure strain as high as ∼ 700% at 700 K temperature is reported. The minimum temperature under which the superplasticity has been observed is around 0.36 Tm, which is much lower than 0.5 Tm (Tm = melting temperature i.e. 1911 K for bulk B2-NiAl). Superplasticity is observed due to transformation from crystalline phase to amorphous phase after yielding of the nanowire. |
| Keywords: | Superplasticity NiAl intermetallic High temperature Nanowire Mechanical properties |
| 本文献已被 ScienceDirect 等数据库收录！ | |