Results 131 to 140 of about 4,525 (236)

Two‐Way Shape Memory Alloy and Polymer Composite Hybrid Smart Actuator With High Speed, Accuracy, and Reversible Deformation

Advanced Functional Materials, Volume 36, Issue 33, 23 April 2026.
Tailored thermo‐mechanical properties of shape memory polymer composites enable large reversible deformation as well as high actuation speed. Moreover, a structural design with curvature in the transverse direction achieves sub‐second actuation on heating and a larger recovery ratio on cooling. Finally, these newly developed smart two‐way actuators can
Dajeong Kang, Seong Yeon Park, Yitro Samuel Aditya, Ha Eun Lee, Wonvin Kim, Sangyoon Bae, Seong Su Kim   +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, Volume 8, Issue 4, April 2026.
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

Effect of PWHT and Electrical Parameters on Austenitic Phase, Sigma Phase and Corrosion in Duplex Steels S32205

Engineering Reports, Volume 8, Issue 4, April 2026.
Welding power and post‐weld heat treatment (PWHT) at 850°C influence phase transformations in S32205 duplex stainless steel, promoting sigma phase formation and reducing corrosion resistance. PWHT at 850°C also replicates HAZ‐like microstructures in base metal, enabling improved characterization of weld joint properties.
Sandra Chacón‐Fernández, José L. Meseguer‐Valdenebro, Andrea Peña Martín   +2 more
wiley   +1 more source

Hybrid GRA–Machine Learning Framework for Surface and Performance Optimization of Ti49.3Ni50.7 SMA in Biomedical Applications

Engineering Reports, Volume 8, Issue 4, April 2026.
Ti49.3Ni50.7 shape memory alloy is highly biocompatible but difficult to machine due to its complex thermo‐mechanical behavior. An enhanced Wire EDM process was developed using a Taguchi L18 design, GRA, and Random Forest with Bayesian optimization. The optimized parameters achieved a surface roughness of 1.298 μm and a material removal rate of 2.537 ...
Adik M. Takale, Uday A. Dabade, Mukesh Kumar, B. Vinod, Manjunath G. Avalappa, Uttam U. Deshpande, Kishor K. Powar   +6 more
wiley   +1 more source

A Review on Cracking in Laser Additive Manufacturing of Nickel‐Based Superalloys: Types, Formation Mechanisms, and Suppression Strategies

Rare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Nickel‐based superalloys (Ni‐based superalloys) have attracted extensive attention in laser additive manufacturing (LAM) due to their capability to directly fabricate complex and high‐performance structural components. However, the rapid melting and solidification inherent to LAM result in intense thermal cycling, which induces high residual ...
Tianxiang Lin, Ciying Li, Hongkai Zhou, Rui Chen, Yi Li, Can Cui, Lizhang Zhang, Maoyuan Li, Zhenzhong Wang, Wei‐Wei Xu   +9 more
wiley   +1 more source

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

Small, Volume 22, Issue 19, 1 April 2026.
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

Phenomenological Prediction of Defect Formation in Continuous Casting of Steel Utilizing Fundamental Modeling and Machine Learning

steel research international, Volume 97, Issue 4, Page 2074-2088, April 2026.
In this article, decision tree classifiers are developed to predict defects in continuous casting of steel utilizing caster data from SSAB Raahe Works (Finland). Phenomenological quality criteria extracted from applicable process measurements and results from solidification and heat transfer simulations are utilized in prediction.
Julius Norrena, Seppo Louhenkilpi, Ville‐Valtteri Visuri, Tuomas Alatarvas, Agne Bogdanoff, Timo Fabritius   +5 more
wiley   +1 more source

Numerical Prediction of Deformation‐Induced Martensitic Transformation in Cold‐Sprayed Austenitic Stainless Steel

steel research international, Volume 97, Issue 4, Page 2241-2249, April 2026.
Cold spray deposition of stainless steel (grade: SS304) is evaluated for marine applications, with emphasis on martensitic transformation during impact. Analytical modeling, simulations, and experiments reveal that helium‐assisted spraying of fine powders promotes cooling below the martensitic start temperature, enabling up to ≈40% austenite to ...
Cal Vin Wong, K. R. Ramkumar, Sougata Roy, Victor K. Champagne, John J. Lee   +4 more
wiley   +1 more source

Characterization of laser powder bed fusion metal samples using Bragg edge neutron transmission analysis

Journal of Applied Crystallography, Volume 59, Issue 2, Page 357-368, April 2026.
Additive manufacturing represents a highly promising technique across various research and development sectors. In this work, Bragg edge neutron imaging is employed to characterize the crystallographic structure of additively manufactured metal samples, aiming to validate and optimize the production process.Bragg edge neutron transmission analysis is a
Matilde Dematteis, Luisa Vigorelli, Francesco Grazzi, Donato Orlandi, Daniele Cortis, Matteo Busi, Marco Costa   +6 more
wiley   +1 more source

Effects of Access Cavity Design on the Shaping Ability and Dentine Thickness Following Canal Preparation Using XP‐Endo Shaper or Reciproc

Australian Endodontic Journal, Volume 52, Issue 1, Page 156-167, April 2026.
ABSTRACT This study compared the shaping ability and remaining dentine thickness in mandibular molars prepared with traditional (TradAC) or ultraconservative (UltraAC) access cavities using Reciproc or XP‐endo Shaper instruments. Thirty‐two molars were scanned with micro‐CT before and after preparation to assess canal surface, volume, untouched walls ...
Renata Muniz Alvez Cruz, Ana Flávia Almeida Barbosa, Carolina Oliveira de Lima, Ricardo Tadeu Lopes, Marco Aurélio Versiani, Emmanuel João Nogueira Leal da Silva, Luciana Moura Sassone   +6 more
wiley   +1 more source