Martensitic transformation and shape memory effect in ZrCu intermetallic compound

Koval, Yu. N.; Firstov, G.S.; Kоtkо, А. V.

doi:10.1016/0956-716x(92)90153-6

Cited by 110 publications

(77 citation statements)

References 4 publications

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“…Taking into account the results of Seo and Schryvers [11] that show alternate B19'-»Cm-»B19'-»... "sandwich"-type of microstructure, it is logical to suppose that the formation of B19' martensite at first induces considerable stresses in surrounding matrix and the Cm martensite then forms as a relaxation of such stresses. Such forward MT can prevent the plastic deformation and can be the reason for the nearly perfect shape memory effect during MT in ZrCu that is taking place with wide temperature hysteresis [1]. The reverse MT shows that B19' martensite disappears first (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…It has been shown that these intermetallics exhibit perfect shape memory effect [1,2,4] during MT with wide temperature hysteresis from high-temperature B2 phase into two monoclinic phases belonging to Cm and P2!/m space groups [5]. The process of the actual formation and disappearance of two martensites and austenite during the complete cycle of the MT in ZrCu intermetallic compound is a subject of the present investigation.…”

Section: Introductionmentioning

confidence: 99%

“…It is known that the ZrCu-based intermetallic compounds undergo a martensitic transformation (MT) with wide temperature hysteresis and a considerable energy is dissipated during a full transformation cycle [1][2][3]. It has been shown that these intermetallics exhibit perfect shape memory effect [1,2,4] during MT with wide temperature hysteresis from high-temperature B2 phase into two monoclinic phases belonging to Cm and P2!/m space groups [5].…”

Section: Introductionmentioning

confidence: 99%

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Peculiarities of the martensitic transformation in ZrCu intermetallic compound - potential high temperature SMA

2001

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Interaction of two martensitic phases during martensitic transformation (MT) in ZrCu intermetallic compound was studied by means of in situ high-temperature X-ray diffraction studies, internal friction and calorimetric measurements. Some regularities of the mutual formation and disappearance of two martensites on thermal cycling through the temperature interval of the MT were established. The mechanism of the MT in ZrCu intermetallic compounds is discussed.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Peculiarities of the martensitic transformation in ZrCu intermetallic compound - potential high temperature SMA

2001

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“…Among these the binary Cu-Zr system appears to be a good representative [24]. In practise it turns out that the martensitic transformation is similar to that in Ni-Ti, which is not surprising considering the elements involved [25,26,27].…”

Section: Martensite In Cuzrmentioning

confidence: 89%

Electron Microscopy Studies of Martensite Microstructures

Schryvers

1997

J. Phys. IV France

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Abstract. An overview will be given of some recent results of microstructural electron microscopy studies on martensitic systems. The precursor structure observed in a ternary Ni-Mn-Ti alloy and its correlation with the ensuing stacking sequence is presented. New types of materials of a well known alloy, in casu splat-cooled and nanoscale thin films of Ni-A1 are investigated revealing particular morphologies of the microtwin stackings in the martensite. The complex microstructure with two martensite structures, multiple macro-and microtwinning and different out-of-phase type defects in CuZr is also discussed.

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“…By a rapid cooling of this high-temperature line phase to below 140 "C the decomposition to the neighbouring stable phases is suppressed and it transforms into two metastable phases with monoclinic structures [2]. These phases have martensitic characteristics and show shape memory behaviour [3,4] similar to other B2 phase alloys [5].…”

Section: Introductionmentioning

confidence: 86%

Defect Structures in CuZr Martensite, Studies by CTEM and HRTEM

Seo

Schryvers

1997

J. Phys. IV France

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Abstract. Defect structures in CuZr martensite are studied by conventional and high-resolution transmission electron microscopy. Two different types of planar defects are observed. It is concluded that both defect types can be inherited from anti-phase boundaries in the austenite phase. With respect to the martensitic transformation, both defect types can be explained by the different shuffles of atoms after or during the distortion to the monoclinic angle.

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Martensitic transformation and shape memory effect in ZrCu intermetallic compound

Cited by 110 publications

References 4 publications

Peculiarities of the martensitic transformation in ZrCu intermetallic compound - potential high temperature SMA

Peculiarities of the martensitic transformation in ZrCu intermetallic compound - potential high temperature SMA

Electron Microscopy Studies of Martensite Microstructures

Defect Structures in CuZr Martensite, Studies by CTEM and HRTEM

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