Experimental test for a possible isothermal martensitic transformation in a Ti–Ni alloy

Otsuka, Kazuhiro; Ren, Xiaobing; Takeda, Takafumi

doi:10.1016/s1359-6462(01)01002-8

Cited by 52 publications

(27 citation statements)

References 14 publications

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“…This decrease is due to the B2-B19 0 transformation, as confirmed by Sandrock et al [4]. This interpretation has also been made by many other researchers [5][6][7][8][9][10][11][12][13][14]. In the B19 0 phase, the temperature coefficient of electrical resistivity (TCER, dq/dT) is positive and the resistivity changes linearly.…”

supporting

confidence: 69%

Reply to comment on “Isothermal nature of the B2–B19′ martensitic transformation in a Ti–51.2Ni (at.%) alloy”

Fukuda

Kakeshita

2015

Scripta Materialia

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supporting

confidence: 69%

Reply to comment on “Isothermal nature of the B2–B19′ martensitic transformation in a Ti–51.2Ni (at.%) alloy”

Fukuda

Kakeshita

2015

Scripta Materialia

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“…Moreover, the M s temperature of the specimen cooled in air is lower than that of water-cooled specimen, but somewhat higher than that of the furnace-cooled one. The transformation temperatures of shape memory alloys are very sensitive to the amount of quenched-in vacancies [22]. The higher cooling rate (WQ) leads to an increased non-equilibrium density and decreases the elastic strain energy between the martensite variants and stabilizes the product phase [23].…”

Section: Resultsmentioning

confidence: 99%

Effect of annealing on the microstructure and martensitic transformation of magnetic shape memory alloys CoNiGa

Liu

Xia

Huang

et al. 2006

Journal of Alloys and Compounds

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“…It is well known that all diffusional transformations require some incubation time before start, while diffusionless transformations need negligible time [33]. Thus, diffusional transformations can be usually suppressed by rapid quench [8,33].…”

Section: Intermediate Phase or Premartensitic Phasementioning

confidence: 99%

Origin of tweed in Au–Cu–Al alloys

Liu

Jin

2013

Philosophical Magazine

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The premartensitic tweed in Au-Cu-Al alloys, contrary to previous thought that resort to defects, is confirmed to be associated with the coherent embryos of an intermediate phase (I phase) embedded in parent phase. The parent → I phase transformation temperature was measured by differential scanning calorimeter and dynamic mechanical analysers, which shifts from 82.3 to 557.6°C depending on the alloy composition. X-ray diffraction and transmission electron microscopes (TEM) results show that the parent → I phase transformation is a charge density wave transition that cannot be suppressed even by melt-spun method, which shows obvious compositional inhomogeneity between I phase and parent. The results imply that the parent → I phase transition is a fast displacive transformation coupled with diffusion. Moreover, accompanying the parent → I phase transformation, alloys demonstrate diversified microstructure revealed by TEM observation, from tweed to chessboard nanowires or twins. These findings provide the experimental evidence for that parent → I phase transformation in Au-Cu-Al alloys is originated from pseudospinodal decomposition as theoretically predicted.

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Experimental test for a possible isothermal martensitic transformation in a Ti–Ni alloy

Cited by 52 publications

References 14 publications

Reply to comment on “Isothermal nature of the B2–B19′ martensitic transformation in a Ti–51.2Ni (at.%) alloy”

Reply to comment on “Isothermal nature of the B2–B19′ martensitic transformation in a Ti–51.2Ni (at.%) alloy”

Effect of annealing on the microstructure and martensitic transformation of magnetic shape memory alloys CoNiGa

Origin of tweed in Au–Cu–Al alloys

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