<i>In-situ</i>observation of peritectic solidification in Sn-Cd and Fe-C alloys

Yasuda, Hideyuki; Nagira, Tomoya; Yoshiya, Masato; Uesugi, Masayuki; Nakatsuka, Noriaki; Kiire, M; Sugiyama, A.; Uesugi, K.; Umetani, Keiji

doi:10.1088/1757-899x/27/1/012084

Cited by 26 publications

(16 citation statements)

References 38 publications

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“…moving velocity and morphology of the δ/γ interface) for building a model of the massive-like transformation. The in-situ observation with a frame of 1 fps in the previous study [7] was too slow to observe the δ/γ interface during the massive transformation. done with a frame rate of 1 fps.…”

Section: Introductionmentioning

confidence: 80%

“…In our previous study [7][8], the massive-like transformation from the undercooled δ phase to the γ phase dominantly occurred, comparing to the peritectic solidification. The γ phase hardly nucleated in the δ+L state and consequently the δ phase continued to grow even below the peritectic temperature.…”

Section: Introductionmentioning

confidence: 81%

“…For example, dendritic solidification of Sn and Al alloys has been reported [4][5]. Recently, the technique has been extended to observe solidification of Fe-C alloys [6][7][8] and deformation of semisolid [9]. Since the in situ observation allows us to know how the solidification and the phase transformation proceed, the technique provides direct and valuable information for modelling microstructural evolution and defect formation.…”

Section: Introductionmentioning

confidence: 99%

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Kinetics of the δ/γ interface in the massive-like transformation in Fe-0.3C-0.6Mn-0.3Si alloys

Nishimura

Morishita

Nagira

et al. 2015

IOP Conf. Ser.: Mater. Sci. Eng.

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Section: Introductionmentioning

confidence: 80%

Section: Introductionmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 99%

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Kinetics of the δ/γ interface in the massive-like transformation in Fe-0.3C-0.6Mn-0.3Si alloys

Nishimura

Morishita

Nagira

et al. 2015

IOP Conf. Ser.: Mater. Sci. Eng.

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“…1) The transformation is by orders of magnitude faster than the diffusion-controlled peritectic reactions, and thus it is referred to ¤-£ massive-like transformation 2) in an analogy with massive transformation with composition invariance.…”

Section: Introductionmentioning

confidence: 99%

Interface Energies of Hetero- and Homo-Phase Boundaries and Their Impact on δ-γ Massive-Like Phase Transformations in Carbon Steel

et al. 2015

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Systematic atomistic simulations of homo-and hetero-phase boundaries have been carried out to quantify interphase boundary energies in iron including ¤-phase and £-phase grain boundaries and ¤/£, ¤/liquid and £/liquid interfaces. Due to structural mismatch between body centered cubic (BCC) and face centered cubic (FCC) structures of the ¤ and £ phases, the minimum interface energy of the ¤/£ interface is as high as 0.41 J/m 2 , much higher than the minimum interface energies of the ¤/¤ and £/£ homo-phase interfaces, which are zero, suggesting that the high interface energy is one of the key factors that lead to the massive-like phase transformation from the ¤ phase to the £ phase observed by in situ radiography. Although the minimum ¤/£ interface energy is not significantly higher than the ¤/liquid interface energy that determines the ¤ nucleation upon solidification, it is yet high enough for the small entropy change upon the phase transformation to inhibit £ nucleation at a given critical radius until more than one orders of magnitude higher undercooling is achieved according to the classical theory of homogeneous nucleation.

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“…[12][13][14][15][16][17][18][19][20][21] Recently a similar technique has been applied to in-situ observation of shear deformation in semi-solid Al-Cu and Fe-C alloys. [22][23][24] The time-resolved sequence of images showed impingement between solid particles and the translation and rotation of solid particles about their contacts in response to shear at the grain scale.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Shear Deformation Based on In-situ Observation of Deformation in Semi-solid Al–Cu Alloys and Water-particle Mixture

et al. 2013

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In-situ observation of deformation at the grain scale in semi-solid Al-Cu alloys has been carried out using synchrotron X-ray radiography. The deformed microstructure was characterized by the quantitative analysis of solid motion from the image sequences during shear in semi-solid Al-Cu alloys. The influence of solid particle shape on shear deformation was also examined by comparing with in-situ observation of deformation in water-polystyrene particle mixtures where the polystyrene particles are spherical with a diameter of 500 μm. In both semi-solid Al-Cu alloys and water-particle mixtures, solid particles located close to the shear plane developed an increasing component perpendicular to the shear plane, and a relatively high shear strain rate and decreased solid fraction was localized in a shear domain. The shear band width in semi-solid Al-Cu alloys (~10 mean particles diameter) was approximately two times wider than that formed in water-particle mixtures due to the difference in the solid particle shape.

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In-situobservation of peritectic solidification in Sn-Cd and Fe-C alloys

Cited by 26 publications

References 38 publications

Kinetics of the δ/γ interface in the massive-like transformation in Fe-0.3C-0.6Mn-0.3Si alloys

Kinetics of the δ/γ interface in the massive-like transformation in Fe-0.3C-0.6Mn-0.3Si alloys

Interface Energies of Hetero- and Homo-Phase Boundaries and Their Impact on δ-γ Massive-Like Phase Transformations in Carbon Steel

Characterization of Shear Deformation Based on In-situ Observation of Deformation in Semi-solid Al–Cu Alloys and Water-particle Mixture

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In-situobservation of peritectic solidification in Sn-Cd and Fe-C alloys

Cited by 26 publications

References 38 publications

Kinetics of the δ/γ interface in the massive-like transformation in Fe-0.3C-0.6Mn-0.3Si alloys

Kinetics of the δ/γ interface in the massive-like transformation in Fe-0.3C-0.6Mn-0.3Si alloys

Interface Energies of Hetero- and Homo-Phase Boundaries and Their Impact on &delta;-&gamma; Massive-Like Phase Transformations in Carbon Steel

Characterization of Shear Deformation Based on In-situ Observation of Deformation in Semi-solid Al–Cu Alloys and Water-particle Mixture

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Interface Energies of Hetero- and Homo-Phase Boundaries and Their Impact on δ-γ Massive-Like Phase Transformations in Carbon Steel