Affiliation:
1. Suzhou Vocational University
2. Suzhou Vocational University
Abstract
The influences of chemical compositions on the internal friction of phase transformation were investigated for the quenched Ni-Al-based alloys. The internal friction measurements were completed using a low-frequency mechanical spectrum apparatus through forced vibration method. It was shown that the chemical compositions have the great influences on the internal friction of phase transition for the oil-cooled Ni-Al-based alloys. The peak-temperature of internal friction is lowered, and the peak-height is increased and the peak-width is narrowed when Fe content is elevated. The reducing of the peak-temperature is attributed to the increase of stability of γ phase due to the addition of Fe. The changes of the parameters of the peak are also related to the Aleq (equivalent Al) contents.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Reference13 articles.
1. K. Enami, S. Nenno and K. Shimizu, Crystal structure and internal twins of the Ni-36.8% Al martensite, Trans. JIM. 14 (1973)161-165.
2. J.L. Smialek and R. F. Hehemann, Transformation temperatures of matensite in beta Ni-Al alloys, Metall. Trans. A. 4 (1973) 1571-1575.
3. P.L. Potapov, P. Ochin, J. Pons and D. Schryvers, Nanoscale inhomogeneities in melt-spun Ni-Al, Acta mater. 48(2000)3833-3845.
4. T. Chráska, J. Lašek and P. Chráska, Resistometric investigation of phase transformations in NiAl alloys, Mater. Sci. Eng. A. 244 (1998)263-272.
5. E.P. George, C.T. Liu, J.A. Horton, et al, Characterization, processing, and alloy design of Ni-Al-based shape memory alloys, Materials Characterization, 39 (1997) 665-686.
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