Results 1 to 10 of about 13,933 (129)

Martensitic Transformations in Stainless Steels

open access: yesУспехи 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

open access: yesMetals, 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   +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

open access: yesMagnetochemistry, 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
doaj   +1 more source

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

open access: yesMetals, 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

Experimental assessment of low-temperature martensite transformations in Ni-rich polycrystalline Ni–Ti alloys

open access: yesJournal of Materials Research and Technology, 2022
Ultrasonic velocity and attenuation measurements of a commercially available Ni-rich polycrystalline Ni–Ti alloy were simultaneously obtained upon cooling from room temperature (RT) down to 130 K.
Ariel Moreno-Gobbi   +7 more
doaj   +1 more source

Interrelation of microstructure and thermodynamic parameters in TiNi alloy during multiple martensitic transformations [PDF]

open access: yesMATEC Web of Conferences, 2019
The effect of multiple martensitic transformations on the microstructure and thermodynamic parameters of the alloy of the TiNi system was investigated. It was shown that in the Ti50Ni50 alloy, with an increase in the number of thermal cycles with rapid ...
Churakova Anna
doaj   +1 more source

Unconventional precipitation and martensitic transformation behaviour of Ni-rich NiTi alloy fabricated via laser-directed energy deposition

open access: yesVirtual and Physical Prototyping, 2023
In this study, we report an unconventional precipitation and martensitic transformation behaviour of directly aged Ni-rich NiTi alloys fabricated via laser-directed energy deposition (LDED).
Jingtao Kang   +9 more
doaj   +1 more source

Formation mechanism of faulted bands and its effect on α′-martensitic transformation

open access: yesMaterials & Design, 2022
Understanding the martensitic transformation mechanism is of critical importance to control martensitic transformations and hence retained austenite. Linear defects reported in a previous study can provide nucleation sites for martensitic transformation,
Xiaohui Xi   +6 more
doaj   +1 more source

An ideal model for stress-induced martensitic transformations in shape-memory alloys [PDF]

open access: yesFracture 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
doaj   +3 more sources

A Revisit to the Notation of Martensitic Crystallography

open access: yesCrystals, 2018
As one of the most successful crystallographic theories for phase transformations, martensitic crystallography has been widely applied in understanding and predicting the microstructural features associated with structural phase transformations.
Yipeng Gao
doaj   +1 more source

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