Results 81 to 90 of about 60,100 (278)

Shape‐Memory Alloy Torsion Strips for Soft Robotic Manipulation and Morphing

Advanced Intelligent Systems, EarlyView.
In this research, a dedicated configuration of SMA strip is proposed for soft robotic manipulation and morphing. This configuration has broad application prospects and demonstrates remarkable advantages in soft body joint operations. Mimicking invertebrates, soft robots tend to control each of their body joints to achieve the desired shape changes and ...
Changchun Wu, Hao Liu, Senyuan Lin, Yunquan Li, James Lam, Ning Xi, Yonghua Chen   +6 more
wiley   +1 more source

A Neural Network‐Based Self‐Sensing Embedded Position Control System for Shape Memory Alloy Wire Actuators

Advanced Intelligent Systems, EarlyView.
Shape memory alloy wires exhibit thermally induced phase changes that generate actuation strain and resistance variations enabling self‐sensing. However, hysteretic electromechanical behavior complicates accurate state estimation. This paper presents an artificial in‐based self‐sensing method to reconstruct SMA actuator position in real time, achieving
Krunal Koshiya, Gianluca Rizzello, Paul Motzki   +2 more
wiley   +1 more source

Electroforming Thin Fe Foils Using ChCl/Urea Deep Eutectic Solvent: Effects of MnCl2 and Current Density on Microstructure and Corrosion Behavior

MetalMat, EarlyView.
This study reports the electroforming of Fe thin foils using ChCl/urea DES. It analyzes the effect of current density and MnCl2 addition in the electroformed samples’ composition and corrosion behavior. It presents new insights into Mn incorporation via Fe₂O₃ doping in the Fe matrix.
Vinicius Sales, Carlo Paternoster, Georgios Kolliopoulos, Lukasz Maj, Magdalena Bieda, Diego Mantovani   +5 more
wiley   +1 more source

Additive Manufacturing of Multimetallic Materials to Achieve Multifunctionality

MetalMat, EarlyView.
Leveraging multimaterial directed energy deposition (DED), this work showcases four case studies of metallic multifunctional materials (MFMs). The significant potential of DED to achieve multifunctionalities in metallic materials is demonstrated, providing enlightenment to a wide range of engineering applications unseen in conventional metallic ...
Xiao Shang, Evelyn Li, Soumya S. Dash, Ajay Talbot, Yu Zou   +4 more
wiley   +1 more source

Designing High‐Entropy Alloys With Low Stacking Fault Energy Through Interpretable Machine Learning

Materials Genome Engineering Advances, EarlyView.
In this study, we developed an interpretable machine learning (ML) ensemble framework and, by integrating the VEC criterion with the proposed machine learning scoring parameter in the alloy composition screening process, successfully designed multiple CoCrFeNiMn‐based HEAs with TWIP/TRIP effects and without the BCC phase.
Shuai Nie, Yixuan He, Haoxiang Liu, Xudong Liu, Haifeng Wang, Ziqing He, Menghao Yang   +6 more
wiley   +1 more source

Inhomogeneity of Room‐Temperature Elastocaloric Effects in NiTi Alloys Fabricated by Laser Powder Bed Fusion

Rare Metals, EarlyView.
ABSTRACT NiTi shape memory alloys are among the most promising solid‐state refrigeration materials. In recent years, additive manufacturing methods for producing difficult‐to‐machine NiTi alloys have gained increasing attention from researchers. This work successfully produces NiTi alloys with good superelasticity at room temperature via laser powder ...
Chang‐Yong Chen, Ze Pu, Wen Chen, Bai‐Liang Qin, Hua Luo, Peng‐Bo Wang, Cong‐Rui Yang, Kang‐Cheung Chan   +7 more
wiley   +1 more source

Twin‐Wire In Situ Additive Manufacturing of NiTiNb Eutectic Alloys: Eliminating Unmelted Nb Particles and Tailored Superelasticity

Rare Metals, EarlyView.
ABSTRACT A major challenge in fabricating eutectic NiTiNb alloys is the incomplete melting of Nb due to its much higher melting point than the NiTi matrix. In this work, a novel electron‐beam freeform additive manufacturing strategy is developed to eliminate unmelted Nb particles and achieve a fully eutectic structure through independent dual‐wire ...
Qing‐Da Zhang, Bao‐Xian Su, Chen Liu, Zhe Li, Zhi‐Wen Li, Meng‐Hao Zhong, Bao Ding, Rui‐Run Chen, Liang Wang, Yan‐Qing Su   +9 more
wiley   +1 more source

Thermohydrogen‐Induced α→β Phase Transition and Interfacial Aggregation: A Diffusion Bonding Mechanism for Ti65 Alloy at Low Temperatures

Rare Metals, EarlyView.
ABSTRACT Diffusion bonding (DB) of near‐α titanium alloys requires high temperatures, which can cause grain coarsening, structural deformations, and degradation of the workpiece's mechanical characteristics. In this study, thermal hydrogen processing (THP) was applied to Ti65, combined with selective magnetron sputtering of a Ti‐Al thin film to promote
Liang‐Wei Kang, Shao‐Song Jiang, Jin‐Yuan Zhang, Yang Li, Xin‐Yue Shi, Cheng‐Qian Huang, Peng Peng, Shang Yang, Zheng Han, Zhen Lu   +9 more
wiley   +1 more source

Comparative Characteristics of Martensite and Bainite in Cu-Based SMAs

The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 2014
The present work reports the evolution of micro-structure and shape memory behavior in a Cu-15 Zn-6 Al (mass. %) shape memory alloy (SMA), as a function of the applied hot working procedure and of the performed heat treatments.
Elena MIHALACHE, Monica-Nicoleta LOHAN, Bogdan PRICOP, Leandru-Gheorghe BUJOREANU, Marius-Gabriel SURU   +4 more
doaj  

Finite Size‐Effects in Martensite Microstructure of Magnetic Shape Memory Films

Small, EarlyView.
Magnetic shape memory alloys are a promising multifunctional material system for integration into microsystems. Their multifunctionality arises from the coexistence of ferroelasticity and ferromagnetism. While size‐effects in ferromagnetic microstructure are well understood, corresponding experiments on the ferroelastic microstructure are sparse.
Satyakam Kar, Aman Singh, Kornelius Nielsch, Heiko Reith, Sebastian Fähler   +4 more
wiley   +1 more source