Results 1 to 10 of about 4,245 (210)

What is the speed limit of martensitic transformations? [PDF]

Science 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, Klara Lünser, Daniel Schmidt, Kornelius Nielsch, Peter Gaal, Sebastian Fähler   +5 more
doaj   +2 more sources

Theory and Model for Martensitic Transformations [PDF]

Physical Review Letters, 1986
Martensitic transformations are shown to be driven by the interplay between two fluctuating strain components. No soft mode is needed, but a central peak occurs representing the dynamics of strain clusters. A two-dimensional magnetic-analog model with the martensitic-transition symmetry is constructed and analyzed by computer simulation and by a theory
Lindgård, Per-Anker, Mouritsen, Ole G.
openaire   +5 more sources

Crystal symmetry and the reversibility of martensitic transformations [PDF]

Nature, 2004
Martensitic transformations are diffusionless, solid-to-solid phase transitions, and have been observed in metals, alloys, ceramics and proteins. They are characterized by a rapid change of crystal structure, accompanied by the development of a rich microstructure.
BHATTACHARYA K., CONTI S., ZANZOTTO, GIOVANNI, ZIMMER J.   +3 more
openaire   +7 more sources

The Deformation Phenomena at Martensitic Transformations [PDF]

Успехи 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   +3 more sources

Twin Toughening‐Driven Martensitic Transformation Strategy Synergistic Improvement for Plasticity‐Thermal Shock Resistance of (Hf─Zr─Ti)C Ceramic Coating in Severe Thermal Environments [PDF]

Advanced Science
The inherent brittleness and insufficient thermal shock resistance of ultra‐high temperature ceramic (UHTC) in severe thermal environments (above 2000 °C) remain significant challenges.
Jiachen Li, Yulei Zhang, Yanqin Fu, Tao Li, Jian Zhang, Deyu Yang, Lingfei Cao, Fanyu Lu, Junhao Zhao, Junshuai Lv, Hejun Li   +10 more
doaj   +2 more sources

Martensitic Transformations in Stainless Steels

Успехи физики металлов, 2022
Currently, the direction of materials’ research, in which the martensitic transformations are observed, is intensively developed. This is due to the fact that, in the martensitic-transformation process, various defects of crystal structure (twins ...
I. E. Volokitina, A. V. Volokitin, and E. A. Panin
doaj   +1 more source

Effect of Preheating on Martensitic Transformation in the Laser Beam Welded AH36 Steel Joint: A Numerical Study

Metals, 2022
In this work, the effects of preheating temperatures on martensitic transformations in a laser beam-welded AH36 steel joint were observed using a numerical study.
Lei Wang, He Li, Yong Huang, Kehong Wang, Ming Zhou   +4 more
doaj   +1 more source

Kinetics and the Effect of Thermal Treatments on the Martensitic Transformation and Magnetic Properties in Ni₄₉Mn₃₂Ga₁₉ Ferromagnetic Shape Memory Ribbons

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, Bogdan Popescu, Cristina Bartha, Monica Enculescu, Mugurel Tolea, Mihaela Sofronie   +5 more
doaj   +1 more source

Martensitic and inter-martensitic transformations in magnetocaloric Ni2.15Mn0.85Ga Heusler alloy [PDF]

, 2021
The entropy changes in successive martensitic phase transformations in Ni-Mn-Ga Heusler alloys can be used to realize enhanced magnetocaloric properties. A detailed study of phase transformations of one such alloy, Ni2.15Mn0.85Ga (Δ Q =4900 J/kg at 343 K,
Koledov, V., Shavrov, V,, Shavrov, V., Ari-Gur, P., Ren, Y,, George, J., Ge, Yanling, Ge, Y., Madiligama, A., Musabirov, I., Ren, Y.   +10 more
core   +2 more sources

Microstructural and Mechanical Stability of a Ti-50.8 at.% Ni Shape Memory Alloy Achieved by Thermal Cycling with a Large Number of Cycles

Metals, 2020
The influence of thermal cycling (TC) with a large number of cycles on the microstructure, the parameters of martensitic transformations (MTs), and the mechanical properties of a Ti-50.8 at.% Ni shape-memory alloy in coarse-grained (CG) and ultrafine ...
Anna Churakova, Dmitry Gunderov
doaj   +1 more source