Amorphization of intermetallic compounds by ion bombardment. [NiTi]
Conference
·
OSTI ID:5534972
Numerical calculations of amorphization kinetics are conducted for the equiatomic compound TiNi. Results of using different cluster sizes, including the possibility of direct amorphization in the cascade, are compared. The dependences on irradiation temperature, dose rate, free defect generation efficiency, and existing point defect sink microstructure are analyzed. The important role of interstitial concentration evolution as a rate controlling factor of the amorphization process is demonstrated, under the accompanying hypothesis of vacancy immobility in the temperature range under consideration. It is predicted that amorphization is inhibited above a cutoff temperature and below a cutoff dose rate.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 5534972
- Report Number(s):
- CONF-860702-1; ON: DE86013272
- Country of Publication:
- United States
- Language:
- English
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