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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 881-883The Effect of Cr Addition on the Microstructure of...

The Effect of Cr Addition on the Microstructure of TiNi: First-Principles Calculations

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Abstract:

Based on the first-principles pseudo-potential plane wave method, the effect of Cr addition on the microstructure of NiTi alloys are characterized and assessed with the formation enthalpy (ΔH), binding energy (ΔE) and density of states (DOS) distribution of NiTi (Cr) crystals. The results show that the binding energy of NiTi (CrNi) is slightly smaller than that of NiTi (CrTi), but the formation enthalpy of NiTi (CrTi) is much smaller than that of NiTi (CrNi).So the Ms of NiTi alloy could be decreased by the addition of ratio for Ni/Ti. And the electronic microstucture of NiTi (CrNi) alloy are also illustrated clearly.

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Periodical:

Advanced Materials Research (Volumes 881-883)

Pages:

1351-1354

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.881-883.1351

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Online since:

January 2014

Authors:

Wei Bing Zhang, Kai Long, Xiao Cheng

Keywords:

Alloying, First-Principles Calculation, Microstructure, NiTi Shape Memory Alloys

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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