Journal of Electron Microscopy 48(5): 613-616 (1999)
© 1999 Oxford University Press
Nano-crystalline formation during stress-induced amorphization at crack tips in TiNi
1Divsion of Materials Science, Graduate School of Engineering Sapporo 060-8628, Japan
2Center for Advanced Research of Energy Technology, Hokkaido University Sapporo 060-8628, Japan
Although the local stress intensification in the immediate vicinity of a crackat room temperature was also carried out. Local stress-induced amorphization at moving crack tips has been observed. The HREM observation with a 200 kV FE-TEM revealed nano-crystalline formation in the intermediate region between the amorphous region and the crystalline region.
Keywords nano-crystalline, stress-inducted amorphization, crack tip, high-voltage electron microscopy, high-resolution electron microscopy
Received 7 April 1999, accepted 3 July 1999