Influence of the Particle Size on Phase Transformation Temperatures of Ni-49at.%Ti Shape Memory Alloy Powders

George Carlos S. Anselmo; Walman Benício de Castro; Carlos José de Araújo

doi:10.4028/www.scientific.net/MSF.660-661.124

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HomeMaterials Science ForumMaterials Science Forum Vols. 660-661Influence of the Particle Size on Phase...

Influence of the Particle Size on Phase Transformation Temperatures of Ni-49at.%Ti Shape Memory Alloy Powders

Abstract:

It is important to control the martensitic transformation start temperature (Ms) of Ti–Ni alloys because it determines the temperature range over which the shape memory effect and superelasticity appear. Powder metallurgy (PM) is known to provide the possibility of material-saving and automated fabrication of at least semi-finished products as well as net-shape components for NiTi alloys. In this study powder with different particle sizes was subjected by gas atomization. The evolution of the control the martensitic transformation start temperature (Ms) was studied by differential scanning calorimetry. The effect of the particle size of powders on the transformation temperatures behaviors was discussed.

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Periodical:

Materials Science Forum (Volumes 660-661)

Pages:

124-127

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.660-661.124

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Online since:

October 2010

Authors:

George Carlos S. Anselmo, Walman Benício de Castro, Carlos José de Araújo

Keywords:

Ni-Ti Alloy, Powder Metallurgy (PM), Shape Memory

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References

[1] M. Bram, A. Ahmad-Khanlou, A. Heckmann, B. Fuchs, H.P. Buchkremer, D. Stover, Materials Science and Engineering A337 (2002) 254-263.

DOI: 10.1016/s0921-5093(02)00028-x

Google Scholar

[2] J. Mentz , M. Bram, H. P. Buchkremer, D. Stover, Materials Science and Engineering A 481–482 (2008) 630–634.

Google Scholar

[3] H.X. Zheng, J. Mentz, M. Bram∗, H.P. Buchkremer, D. Stover, Journal of Alloys and Compounds 463 (2008) 250–256.

Google Scholar

[4] H. Funakubo, Shape Memory Alloys, Gorden & Breach, New York, (1986).

Google Scholar

[5] M. Igharo, J.V. Wood, Powder Metall. 28 (1985) 131.

Google Scholar

[6] G.A. Porter, P.K. Liaw, T.N. Tiegs and K.H. Wu, Scripta mater., 43, (2000), 1111–1117.

Google Scholar

[7] J. Mentz, J. Frenzel, M. F. -X. Wagner, K. Neuking, G. Eggeler, H. P. Buchkremer, D. Stover, Materials Science and Engineering A 491 (2008) 270–278.

DOI: 10.1016/j.msea.2008.01.084

Google Scholar