Results 81 to 90 of about 25,553 (198)

Nucleation and Martensitic Transformation in Subjects of Small Dimensions

open access: yesУспехи физики металлов, 2014
The existing models and schemes of the martensitic phase nucleation are considered in the review. Theoretical and experimental works devoted to the nucleation of the martensitic crystals in different metals are discussed and analysed.
V. A. Lobodyuk
doaj   +1 more source

Magnetic Tweed Contrast In Ferromagnetic Shape Memory Alloys [PDF]

open access: yes, 2003
Recently, ferromagnetic martensite, specifically ferromagnetic shape memory alloys (FMSMAs), have received renewed attention because of their large domain motion induced magnetostrictive strains.
De Graef, Marc   +6 more
core   +2 more sources

Martensitic Transformation Induced by B2 Phase Precipitation in an Fe-20 Ni-4.5 Al-1.0 C Alloy Steel Following Solution Treatment and Subsequent Isothermal Holding

open access: yesMetals
Phase transformations significantly influence the mechanical properties of Fe-based alloys, making their understanding essential for the design of high-performance alloy materials.
Rosemary Chemeli Korir   +2 more
doaj   +1 more source

Lattice Dynamics of Martensitic Transformations Examined by Atomistic Simulations

open access: yes, 1997
We have performaed molecular dynamics simulations of Fe(80)Ni(20) alloys using an inter-atomic potential of the EAM-type which allows the simulation of the martensite-austenite transition.
Entel, P., Meyer, R.
core   +3 more sources

Vacancy-tuned paramagnetic/ferromagnetic martensitic transformation in Mn-poor Mn_{1-x}CoGe alloys

open access: yes, 2010
It is shown that a temperature window between the Curie temperatures of martensite and austenite phases around the room temperature can be obtained by a vacancy-tuning strategy in Mn-poor Mn1-xCoGe alloys (0
Chen, J. L.   +9 more
core   +1 more source

Pre-martensitic phenomena of thermoelastic martensitic transformation of NiTiCu alloys studied with positron annihilation lifetime spectroscopy

open access: yesScience and Technology of Advanced Materials, 2004
Many anomalous phenomena have been observed in NiTi alloys above martensite start temperature, such as softening of the shear constants, increase of internal friction and diffuse scattering of TEM.
J. Katsuyama, H. Araki, M. Mizuno and Y. Shirai
doaj  

Larger recovery strains in a CoNiSi alloy due to enhanced reversibility of FCC⇌HCP martensitic transformation

open access: yesJournal of Materials Research and Technology
It is not clear how coherent ordered nanoparticles affect characteristics of FCC⇌HCP martensitic transformation in disordered alloys. In this paper, the precipitations of coherent ordered nanoparticles and their effects on the FCC⇌HCP martensitic ...
Q. Liao   +5 more
doaj   +1 more source

Effect of nonlinear and noncollinear transformation strain pathways in phase-field modeling of nucleation and growth during martensite transformation

open access: yesnpj Computational Materials, 2017
Structural transformation: a less linear approach A method for modeling complex changes in the crystal structures of solids is developed by researchers in the USA.
Pengyang Zhao   +3 more
doaj   +1 more source

Amorphous martensite in β-Ti alloys

open access: yesNature Communications, 2018
Displacive martensitic transformations through lattice distortion usually involve a change from one crystal structure to another. Here however, the authors “melt” metastable Ti alloys during cooling and show that a martensitic transformation can lead to ...
Long Zhang   +7 more
doaj   +1 more source

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