Results 11 to 20 of about 4,118 (217)

Room-temperature superelasticity in Mg–Sc shape memory alloys revealed by first-principles calculations

open access: yesJournal of Materials Research and Technology
The discovery of the Mg–Sc shape memory alloy system has become a milestone in the development of lightweight shape memory alloys. However, for the application scenarios with the highest demand at room temperature, the Mg–Sc alloy faces problems such as ...
Haosen Yuan   +6 more
doaj   +2 more sources

Tuning superelasticity in high entropy alloy via a hidden strain order [PDF]

open access: yesNature Communications
Superelasticity – exhibiting either Hookean (linear) or non-Hookean (nonlinear) recoverable strain beyond 2% – has been realized in distinct material systems such as metallic glasses, shape memory alloys, strain glass alloys and Gum metals, enabling ...
Quanfeng He   +10 more
doaj   +2 more sources

Martensitic Transition and Superelasticity of Ordered Heat Treatment Ni-Mn-Ga-Fe Microwires

open access: yesMetals, 2022
The preparation of Ni-Mn-Ga and Ni-Mn-Ga-Fe master alloy ingots and microwires was completed by high vacuum electric furnace melt melting furnace and melt drawing liquid forming equipment, and the lattice dislocations and defects formed inside the ...
Yanfen Liu   +4 more
doaj   +2 more sources

Effect of Process Parameters on Superelasticity of LPBF Ni-Rich Ni51.3Ti48.7 Shape Memory Alloy

open access: yesMetals
Laser powder bed fusion (LPBF) presents both opportunities and challenges with regard to the customisation of NiTi alloy properties. This paper presents a systematic study of the influence of process parameters on the superelasticity of LPBF Ni-rich Ni51.
Zheng Xiang   +5 more
doaj   +2 more sources

Local chemical inhomogeneity enables superior strength-ductility-superelasticity synergy in additively manufactured NiTi shape memory alloys [PDF]

open access: yesNature Communications
NiTi shape memory alloys produced via additive manufacturing are suffering low tensile strength, low total elongation, and unstable superelasticity, thus failing to meet the requirements of practical applications.
Zhonghan Li   +11 more
doaj   +2 more sources

Achieving superelasticity in additively manufactured Ni-lean NiTi by crystallographic design

open access: yesMaterials & Design, 2023
Superelastic metallic materials possessing large recoverable strains are widely used in automotive, aerospace and energy conversion industries. Superelastic materials working at high temperatures and with a wide temperature range are increasingly ...
Jia-Ning Zhu   +9 more
doaj   +2 more sources

A Giant Magneto‐Superelasticity of 5% Enabled by Introducing Ordered Dislocations in Ni34Co8Cu8Mn36Ga14 Single Crystal [PDF]

open access: yesAdvanced Science
Elasticity, featured by a recoverable strain, refers to the ability that materials can return to their original shapes after deformation. Typically, the elastic strains of most metals are well‐known 0.2%.
Qijia Yu   +13 more
doaj   +2 more sources

Orientation‐Dependent Phase Transformation Pathways Enabling Superior Superelastic and Elastocaloric Performance of NiTi Alloys [PDF]

open access: yesAdvanced Science
Developing elastocaloric materials that combine a large adiabatic temperature change with high superelastic stress and large recovery strain is crucial for the commercialization of solid‐state refrigeration.
Jiaqi Lu   +5 more
doaj   +2 more sources

The effect of hydrogen on shape memory effect and superelasticity in single-phase nickel titanium single crystals [PDF]

open access: yes, 2020
The effect of hydrogen on temperature dependences of axial stresses σcr(T), shape memory effect, and superelasticity of [1¯11]-oriented Ti-50.7% Ni (at %) alloy single crystals has been studied under tensile strain in a single-phase state.
Platonova, Yu. N.   +2 more
core   +2 more sources

Shape memory effect and superelasticity in single crystals of iron-based alloys [PDF]

open access: yes, 2015
It was demonstrated that in single crystals of disordered iron-based (Fe-28%Ni-17%Co-11.5%Al-2.5%Х (at. %) (X = Ti, Ta, Ti + Ta) alloys, which undergoing γ-α' thermoelastic martensitic transformation (γ – fcc – face-centered cubic lattice, α' – bct ...
Reunova, K. A.   +3 more
core   +2 more sources

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