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Characterization Of Ni-Rich Nitihf Based High Temperature Shape Memory Alloys, Gurdish S. Ded
Characterization Of Ni-Rich Nitihf Based High Temperature Shape Memory Alloys, Gurdish S. Ded
University of Kentucky Master's Theses
Among the potential high temperature shape memory alloys, due to its low cost, medium ductility and high work output NiTiHf seems to be the most promising HTSMA for a wide range of applications in the 100-250ºC. A detailed investigation into the shape memory properties and transformation behavior for the Ni-rich HTSMA with the compositions of Ni45.3Cu5Ti29.7Hf20, Ni50.3Ti29.7Hf20 and Ni45.3Pd5Ti29.7Hf20 was carried out. It is possible to form Ni-rich precipitates in Ni-rich NiTiHf alloys and tailor the TTs by heat treatments …