Results 201 to 210 of about 25,521 (248)

Phase Transformation Crystallography of Lath Martensite

MRS Proceedings, 2006
AbstractOur current understanding of martensitic transformations has been based on the Phenomenological Theory of Martensite Crystallography developed in the 1950s. Recently, a Topological Model of martensitic transformations has been presented wherein the habit plane is a semi-coherent structure, and the transformation mechanism is shown explicitly to
Xiao Ma, R.C. Pond
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IMPACT OF THE ORIGINATING MARTENSITIC PHASE ON THE CHARACTER OF MARTENSITIC PHASE TRANSFORMATION

Anali PAZU, 2023
In the article, we discuss the influence of the locally perturbed order parameter in austenitic-martensitic phase transformation on the character of the phase transformation. We choose Landau type mean field approximation which covers the most important features of the proposed theoretical description.
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Martensitic phase transformation in single crystal Ni54Fe19Ga27

Solid State Communications, 2007
The single crystal Ni54Fe19Ga27 shows a martensitic transformation at 281 K on cooling and 283 K on warming. Large jumps in the temperature-dependent resistance curve, temperature-dependent magnetization curve and temperature-dependent thermal conductivity curve are observed at the martensitic transition temperature (TM). Negative magnetoresistance due
Chen, P., Zhang, X.X.
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Martensitic Transformations in β Phase Alloys

1975
CsCl type ordered phases occur frequently in equiatomic alloys. Two broad classes of these phases are recognized (1). The first, with by far the largest number of members, involves transition metals in which one component lies to the left and the other to the right of the chromium group.
S. Vatanayon, R. F. Hehemann
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Martensitic transformations in NiMnAl β phase alloys

Metallurgical and Materials Transactions A, 1996
Martensitic transformation characteristics in a wide range of alloy compositions in the NiMnAl system have been investigated by differential scanning calorimetry (DSC), X-ray diffraction (XRD), and transmission electron microscopy (TEM). The results indicate that while the NiMnAl alloys with relatively high Al and Mn contents transform martensitically ...
R. Kainuma, K. Ishida, H. Nakano
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Is the olivine–spinel phase transformation martensitic?

Nature, 1982
Olivine, the dominant mineral in the Earth's uppermost mantle, undergoes one, or possibly a series of phase transformations to adopt a spinel structure at pressures above ∼13 GPa. The mechanism by which the transformation is accomplished could have important implications for understanding mantle dynamics and deep focus earthquakes.
P. J. Vaughan, H. W. Green, R. S. Coe
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Martensitic Phase Transformations

1983
AbstractThis chapter concentrates on very low-temperature martensitic transformations, which are of great concern for cryogenic applications and research. The principal transformation characteristics are reviewed and then elaborated. The material classes or alloy systems that exhibit martensitic transformations at very low temperatures are discussed ...
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Martensitic Phase Transform Ation

2003
Abstract We are interested in developing a continuum theory for materials that undergo the martensitic phase transformation. In particular, we are interested in understanding the origin and the nature of the microstructure that is observed in these materials. In this chapter, we introduce the basic concepts of the theory.
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Crystalline damage growth during martensitic phase transformations

Philosophical Magazine, 2007
A thermomechanical model is developed within a large deformation setting in order to simulate the interactions between martensitic phase transformations and crystalline damage growth at the austenitic grain level. Subgrain information is included in the model via the crystallographic theory of martensitic transformations.
Suiker, A.S.J., Turteltaub, S.R.
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Martensitic phase transformation in single crystal Co5Ni2Ga3

Journal of Materials Science, 2008
The magnetic, thermal, and transport properties of martensitic phase transformation in single crystal Co5Ni2Ga3 have been investigated. The single crystal Co5Ni2Ga3 shows martensitic transformation at 251 K on cooling and 254 K on warming. Large jumps in the temperature-dependent resistance curve, temperature-dependent magnetization curve, and ...
Chen, Peng, Chen, Ke, Wu, Guang Heng, Zhang, Xixiang   +3 more
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