High resolution TEM study of Ni4Ti3 precipitates in austenitic Ni51Ti49
โ Scribed by Wim Tirry; Dominique Schryvers
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 298 KB
- Volume
- 378
- Category
- Article
- ISSN
- 0921-5093
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๐ SIMILAR VOLUMES
Concentration gradients surrounding Ni4Ti3 precipitates grown by appropriate annealing in a Ni51Ti49 B2 austenite matrix are investigated by electron energy loss spectroscopy (EELS) and energy filtered transmission electron microscopy (EFTEM). Concentration gradients of approximately 1.0-2.0 at.% in
Normally, martensitic transformation occurs in two stages (B2-R-B19 ) in aged Ni-rich TiNi alloys. But a three-stage martensitic transformation was also reported. The origin of this abnormal transformation behavior has remained controversial, and in particular it is difficult to understand why in so