Results 31 to 40 of about 15,204 (234)

Constitutive modeling of metastable austenitic stainless steel [PDF]

, 2007
A stress-update algorithm is developed for austenitic metastable steels which undergo phase evolution during deformation. The material initially comprises only the soft and ductile austenite phase which due to the phenomenon of mechanically induced ...
Geijselaers, H.J.M., Huetink, J., Perdahcioglu, E.S.   +2 more
core   +8 more sources

Temperature Dependent Stress–Strain Behavior and Martensite Stabilization in Magnetic Shape Memory Ni_51.1Fe_16.4Ga_26.3Co_6.2 Single Crystal

Metals, 2021
The superelastic properties and stress-induced martensite (SIM) stabilization have been studied in a shape memory Ni51.1Fe16.4Ga26.3Co6.2 single crystal.
Patricia Lázpita, Elena Villa, Francesca Villa, Volodymyr Chernenko   +3 more
doaj   +1 more source

Room temperature creep behavior of Ti–Nb–Mo–Sn based shape memory alloy for biomedical application

Smart Materials in Manufacturing, 2023
As a metallic biomaterial used to replace failed hard tissues, β-type titanium alloys subjected to a long-term loading, may lead to the creep deformation at room temperature.
Chenglong Lei, Chengpeng Zhu, Jianguo Lin, Dechuang Zhang   +3 more
doaj   +1 more source

Finite element simulations of microstructure evolution in stress-induced martensitic transformations

International Journal of Solids and Structures, 2016
Microstructure evolution in single crystal and polycrystal shape memory alloys under uniaxial tension and compression is investigated using the finite element method. To determine stress-strain diagrams and evolution of martensitic microstructure during external loading, a micromechanics based thermo-mechanical material model is used.
Istemi B. Ozsoy, Nazim Babacan
openaire   +4 more sources

Stress-Induced Phase Transformations in Shape-Memory Polycrystals [PDF]

, 2008
Shape-memory alloys undergo a solid-to-solid phase transformation involving a change of crystal structure. We examine model problems in the scalar setting motivated by the situation when this transformation is induced by the application of stress in a ...
Bhattacharya, Kaushik, Schlömerkemper, Anja   +1 more
core   +2 more sources

Releasing systems for aerospace industry based upon shape memory alloys: Characterization of materials for actuators [PDF]

, 2018
Releasing and deployment maneuvers carried out during space satellites launching are usually performed by utilizing pyrotechnics loads. However, it is considered convenient to replace this technique by others not requiring explosives (Non Explosive ...
Glücksberg, Andrés, Soul, Hugo Ramon, Yawny, Alejandro Andres   +2 more
core   +4 more sources

Understanding the interaction between a steel microstructure and hydrogen [PDF]

, 2018
The present work provides an overview of the work on the interaction between hydrogen (H) and the steel’s microstructure. Different techniques are used to evaluate the H-induced damage phenomena. The impact of H charging on multiphase high-strength
Depover, Tom, Laureys, Aurélie, Perez Escobar, Diana Maria, Van den Eeckhout, Emilie, Verbeken, Kim, Wallaert, Elien   +5 more
core   +2 more sources

Stress-induced α″ martensite and its variant selection in a metastable β titanium alloy under an uniaxial compression

Journal of Materials Research and Technology
The phase transformation of β to stress-induced α″ martensitic progresses in a displacive mode. The associated transformation strain induced by β to α″ martensitic has an important influence on the resultant microstructure.
Ruifeng Dong, Yuxin Tan, Hua Hou, Guangxiao Ren, Nan Wang, Yuhong Zhao   +5 more
doaj   +1 more source

Microstructure, martensitic transformation and excellent shape memory effect of Ga-alloyed Cu–Al–Mn–Fe shape-memory single crystal

Journal of Science: Advanced Materials and Devices, 2022
A Cu–10Al–6Mn–3Fe–4Ga (wt.%) single crystal was simply prepared, and its microstructure, reversible martensitic transformation, mechanical and SME properties were investigated.
Shiwei Zheng, Shuaishuai Chen, Shen Hong, Zhongliang Su, Jinbin Zhang, Laisen Wang, Cuiping Wang, Shuiyuan Yang   +7 more
doaj   +1 more source

Acoustic emission characterization of sliding wear under condition of direct and inverse transformations in low-temperature degradation aged Y-TZP and Y-TZP-AL2O3

Friction, 2018
In this research, results of the investigation of the sliding friction and wear of yttria-stabilized tetragonal zirconia polycrystalline (Y-TZP) and Y-TZP-Al2O3 samples preliminarily subjected to low-temperature degradation are reported.
Nikolai L. Savchenko, Andrey V. Filippov, Sergei Yu Tarasov, Andrey I. Dmitriev, Evgeny V. Shilko, Aleksandr S. Grigoriev   +5 more
doaj   +1 more source