Results 11 to 20 of about 13,933 (129)

Shear-induced α → γ transformation in nanoscale Fe-C composite [PDF]

open access: yes, 2006
High-resolution transmission electron microscopy and three-dimensional atom probe observations show clearly that a reverse transformation of body-centred cubic ferrite to face-centred cubic austenite occurs during severe plastic deformation of a ...
Fecht, H.-J.   +4 more
core   +1 more source

Towards the ab initio based theory of the phase transformations in iron and steel [PDF]

open access: yes, 2017
Despite of the appearance of numerous new materials, the iron based alloys and steels continue to play an essential role in modern technology. The properties of a steel are determined by its structural state (ferrite, cementite, pearlite, bainite ...
Gornostyrev, Yu. N.   +2 more
core   +3 more sources

NiTi shape-memory transformations: minimum-energy pathways between austenite, martensites, and kinetically-limited intermediate states [PDF]

open access: yes, 2014
NiTi is the most used shape-memory alloy, nonetheless, a lack of understanding remains regarding the associated structures and transitions, including their barriers.
Johnson, Duane   +3 more
core   +4 more sources

What is the speed limit of martensitic transformations?

open access: yesScience and Technology of Advanced Materials, 2022
Structural martensitic transformations enable various applications, which range from high stroke actuation and sensing to energy efficient magnetocaloric refrigeration and thermomagnetic energy harvesting.
Stefan Schwabe   +5 more
doaj   +1 more source

In situ observation of strain and phase transformation in plastically deformed 301 austenitic stainless steel [PDF]

open access: yes, 2016
To inform the design of superior transformation-induced plasticity (TRIP) steels, it is important to understand what happens at the microstructural length scales.
Abreu   +54 more
core   +2 more sources

Reversibility of the Martensitic Transformations and Shape-Memory Effects

open access: yesУспехи физики металлов, 2016
The results of the investigations of main peculiarities and reversibility of the martensitic transformations in different materials are considered and discussed.
V. A. Lobodyuk
doaj   +1 more source

Advances in martensitic transformations in Cu-based shape memory alloys achieved by in situ neutron and synchrotron X-ray diffraction methods [PDF]

open access: yes, 2012
This article deals with the application of several X-ray and neutron diffraction methods to investigate the mechanics of a stress induced martensitic transformation in Cu-based shape memory alloy polycrystals. It puts experimental results obtained by two
Berveiller, Sophie   +3 more
core   +8 more sources

The Deformation Phenomena at Martensitic Transformations

open access: yesУспехи физики металлов, 2006
Some unusual phenomena and properties caused by the reversible martensitic transformations such as the shape memory effect, superelasticity, etc. and such parameters as crystal structure of the parent and martensitic phases, morphology of the martensitic
Yu. M. Koval’, V. A. Lobodyuk
doaj   +1 more source

Precipitation kinetics of Ti3Ni4 and multistage martensitic transformation in an aged Ni–rich Ni–Ti shape memory alloy

open access: yesJournal of Materials Research and Technology, 2020
The precipitation kinetics of Ti3Ni4 in a Ti–51.0 at.% Ni alloy was studied through the martensitic transformations temperatures and the JMAKE model. The influences of different aging temperatures and aging time on martensitic transformations temperatures
Guilherme S. Pandolfi   +3 more
doaj   +1 more source

Near-room-temperature martensitic actuation profited from one-dimensional hybrid perovskite structure

open access: yesNature Communications, 2022
Martensitic transformations are structural phase transition that usually bring about stimuli-responsive phenomena. Here authors present a 1D hybrid perovskite ferroelastic martensite that shows thermoelastic actuation behaviour with a significant ...
Bei-Dou Liang   +5 more
doaj   +1 more source

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