Results 11 to 20 of about 4,070 (230)
Crystals, 2019 Molecular dynamics simulations are used to investigate the atomic effects of carbon (C) addition in Fe on the martensitic phase transformation in the presence of pre-existing defects such as stacking faults and twin boundaries.
Shivraj Karewar +2 more
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Validity for a phase-field model on the martensitic phase transformations [PDF]
, 2022 We show the existence of global-in-time solutions to an initial-boundary value problem in one space dimension of a phase-field model on the martensitic phase transformations, which consists of the equations of degenerate and a nondegenerate nonlinear parabolic equation of second order.
manman yang, Fan Wu, zixian Zhu
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Fine microstructure formation in steel under ultrafast heating and cooling
Scientific Reports, 2022 This study evaluates phase transformation kinetics under ultrafast cooling using femtosecond X-ray diffraction for the operand measurements of the dislocation densities in Fe–0.1 mass% C–2.0 mass% Mn martensitic steel.
Mitsuharu Yonemura +13 more
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Metals, 2015 We report on the effects of annealing on the martensitic phase transformation in the Ni-based Heusler system: Mn50Ni40Sn10 and Mn50Ni41Sn9 powder and Co50Ni21Ga32 nanoparticles.
Tina Fichtner +7 more
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Metals, 2019 Equiatomic CuZr alloy undergoes a martensitic transformation from the B2 parent phase to martensitic phases (P21/m and Cm) below 150 °C. We clarified the effect of the thermal cycling on the morphology and crystallography of martensite in equiatomic CuZr
Shota Hisada +4 more
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Magnetochemistry, 2022 In our work, the kinetics of martensitic transformations and the influence of thermal treatments on martensitic transformations, as well as the related magnetic properties of the Ni49Mn32Ga19 ferromagnetic shape memory melt-spun ribbons, have been ...
Felicia Tolea +5 more
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Adaptive Phase in Martensitic Transformation
Materials Transactions, JIM, 1992 It is shown that an adaptive transient phase can be formed along the martensitic transformation path to overcome thermodynamic and nucleation barriers caused by the transformation strain. A possible role of the adaptive phase in the thermal nucleation of the martensite is discussed.
Khachaturyan, A. G. +2 more
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An ideal model for stress-induced martensitic transformations in shape-memory alloys [PDF]
Fracture and Structural Integrity, 2014 In this paper, a novel model for stress-induced martensitic transformations in shape-memory alloys is proposed. Accordingly, the constitutive pseudo-elastic behavior of these materials is described.
Michele Marino
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Microstructure and phase transformation of Ni-Ti-Fe-Nd quaternary shape memory alloy
Proceedings of the Mongolian Academy of Sciences, 2019 The effect of rare earth element neodymium (Nd) addition on the microstructure and phase transformation behavior of Ni50Ti47Fe2Nd1 shape memory alloy was investigated by scanning electronic microscope, X-ray diffraction and differential scanning ...
Dovchinvanchig Maashaa
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A Phase Field Model for Martensitic Transformations [PDF]
PAMM, 2012 AbstractThe martensitic transformation is described using a phase field model which is in mathematical terms the regularization of a sharp interface approach. In this work, up to two martensitic orientation variants are considered. The evolution of microstructure is assumed to follow a time dependent Ginzburg‐Landau equation. The coupled problem of the
Regina Schmitt +2 more
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