Low Frequency Internal Friction Study and Prediction of Microcreep Behaviour of Elinvar Alloys

Yoshinari, O.; Koiwa, M.

doi:10.2320/matertrans1989.30.46

Cited by 13 publications

(2 citation statements)

References 9 publications

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“…According to previous experiments, [8][9][10] the broad spectrum of relaxation processes arises from the dislocation motion and the dislocation velocity is proportional to the effective stress acting on the dislocation line. However, the effective stress consists of the external, harmonically varying stress and the internal stress field within the sample, determined by the pining site, dislocation and grain boundary configuration.…”

Section: Discussionmentioning

confidence: 85%

Characterization of the Internal Friction Properties of 2.25Cr-1Mo Steel

et al. 2009

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Characterization of the internal friction properties of 2.25Cr-1Mo steel was investigated with the forced flexural oscillation by a dynamic mechanical analyzer (DMA). Over the range of variables (temperature, frequency, and vibration strain amplitude) normally encountered in service applications, the results show that the internal friction and modulus of 2.25Cr-1Mo steel at elevated temperatures were dependent not only on the temperature, but also on the frequency. Meanwhile, the internal friction was independent of strain amplitude in the present range below 2 Â 10 À4 . According to analysis of above results, it indicated that the internal friction consists of two components. Both components are due to relaxation mechanisms: the first is a thermoelastic relaxation and the second is a broad diffusion-controlled relaxation.

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Section: Discussionmentioning

confidence: 85%

Characterization of the Internal Friction Properties of 2.25Cr-1Mo Steel

et al. 2009

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“…Mechanical alloying is a useful technique for the homogeneous distribution of second phase and shape control [7][8][9][10]. However, it has been shown that martensite transition temperature increases very sensitively with Ti composition in Ti-Ni [11].…”

Section: Introductionmentioning

confidence: 99%

Properties of Al/TiNi composite using porous TiNi fabricated by a self-propagating high temperature synthesis method

2004

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In the present study, equi-atomic porous TiNi shape-memory alloys have been successfully prepared by selfpropagating high-temperature synthesis (SHS) using elemental titanium and nickel powders. The porous TiNi alloys thus obtained have an open porous structure with about 64 vol.% porosity, and the pore size is about 1.8 mm. The effect of preheating temperature on the microstructure has been investigated. It was found that the pore size increased with increasing preheating temperature. Moreover, the preheating temperature was shown to have a significant effect on the microstructure of the SHS-synthesized porous TiNi shape memory alloys. Aluminum was infiltrated into porous TiNi shape-memory alloys and the damping property of Al/ TiNi was measured by a vibration analyzer (FFT analyzer). The specific damping capacity of Al/TiNi composites is 70 % that of a pure TiNi ingot.

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Internal friction of 9.4 mol% Y2O3-ZrO2 cubic single crystal

Ozawa

Hasegawa

1993

J Mater Sci Lett

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Low Frequency Internal Friction Study and Prediction of Microcreep Behaviour of Elinvar Alloys

Cited by 13 publications

References 9 publications

Characterization of the Internal Friction Properties of 2.25Cr-1Mo Steel

Characterization of the Internal Friction Properties of 2.25Cr-1Mo Steel

Properties of Al/TiNi composite using porous TiNi fabricated by a self-propagating high temperature synthesis method

Internal friction of 9.4 mol% Y2O3-ZrO2 cubic single crystal

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