Results 1 to 10 of about 6,709 (186)

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

Nature 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, Shuai Ren, Xinlei Gu, Hao Gong, Xufeng Wang, Zhaoqi Chen, Rong Han, Qing Wang, Jianfeng Gu, Shijun Zhao, Yong Yang   +10 more
doaj   +2 more sources

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

Nature 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, Jixiang Cai, Zhihao Zhao, Ying Yang, Yang Ren, Gang Sha, Lishan Cui, Kaiyuan Yu, Daqiang Jiang, Yao Xiao, Shengcheng Mao, Shijie Hao   +11 more
doaj   +2 more sources

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

Advanced 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, Jingmin Wang, Chuanxin Liang, Jiaxi Meng, Jinyue Xu, Yang Liu, Shiteng Zhao, Xuekui Xi, Chuanying Xi, Ming Yang, Chen Si, Yangkun He, Dong Wang, Chengbao Jiang   +13 more
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Orientation‐Dependent Phase Transformation Pathways Enabling Superior Superelastic and Elastocaloric Performance of NiTi Alloys [PDF]

Advanced 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, Muhammad Aziz, Hao Li, Chi Zhang, Zhifeng Huang, Fei Chen   +5 more
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Effect of torsion deformation and electric pulse treatment on transformation behaviour and superelasticity of Ti-50.8 at.% Ni wire

Materials & Design, 2022
The functional stability of Ti-50.8 at.% Ni wires (diameter: 0.5 mm) was improved by torsion deformation coupled with electric pulse treatment. The effects of torsion deformation (T = 5–50 turns) and electric pulse treatment (f = 50–400 Hz and t = 50 ...
Shan Liu, Yao Lin, Luyi Han, Guangchun Wang   +3 more
doaj   +1 more source

The Cyclic Stability of the Superelasticity in Quenched and Aged Ni₄₄Fe₁₉Ga₂₇Co₁₀ Single Crystals

Metals, 2023
The effect of aging (at 773 K for 1 h) on the cyclic stability of superelasticity was studied in preliminarily quenched (after annealing at 1448 K for 1 h) Ni44Fe19Ga27Co10 [001]-oriented single crystals.
Ekaterina Timofeeva, Elena Panchenko, Maria Zherdeva, Aida Tokhmetova, Yuriy I. Chumlyakov   +4 more
doaj   +1 more source

Strain glass-induced switch from transformation plasticity to reversible superelasticity in Ti-Zr-Ni-Cu alloys

Materials Research Letters, 2023
Reversibility of phase transformation, a basic requirement for functional properties of shape memory alloys, such as superelasticity, is severely affected by plastic deformation.
Chao Song, Shuai Ren, Shaohui Li, Shengwei Li, Guijun Liu, Zhihua Nie, Yandong Wang, Daoyong Cong   +7 more
doaj   +1 more source

Superelastic graphene aerogel-based metamaterials

Nature Communications, 2022
AbstractUltralight, ultrastrong, and supertough graphene aerogel metamaterials combining with multi-functionalities are promising for future military and domestic applications. However, the unsatisfactory mechanical performances and lack of the multiscale structural regulation still impede the development of graphene aerogels.
Mingmao Wu, Hongya Geng, Yajie Hu, Hongyun Ma, Ce Yang, Hongwu Chen, Yeye Wen, Huhu Cheng, Chun Li, Feng Liu, Lan Jiang, Liangti Qu   +11 more
openaire   +3 more sources

Magnetic superelasticity and inverse magnetocaloric effect in Ni-Mn-In [PDF]

, 2007
Applying a magnetic field to a ferromagnetic Ni$_{50}$Mn$_{34}$In$_{16}$ alloy in the martensitic state induces a structural phase transition to the austenitic state.
Antoni Planes, Bachir Ouladdiaf, Eberhard F. Wassermann, Emmanuelle Suard, Eyüp Duman, K. Kakeshita, Lluís Mañosa, Mehmet Acet, Thorsten Krenke, Xavier Moya   +9 more
core   +6 more sources

Influence of Directional Solidification on the Mechanical Properties of Cu-Al-Be-Nb-Ni Alloy [PDF]

Materials Research, 2019
Copper-based polycrystalline shape memory alloys (SMAs) have limitations for many practical applications due to their low superelasticity and low ductility.
Gabrielly de Lucena Tiburtino, Rafael Tavares Vieira, Ieverton Caiandre Andrade Brito, Rafael Evaristo Caluête, Rodinei Medeiros Gomes, Danniel Ferreira de Oliveira   +5 more
doaj   +1 more source