Results 81 to 90 of about 2,616 (238)

Study of Microstructure, Mechanical, and Corrosion Properties of K-TIG Welded Joints of 2205/316L Dissimilar Stainless Steel

open access: yesMetals
Stainless steel welding plays a critical role in industrial manufacturing due to its superior corrosion resistance and structural reliability. The keyhole tungsten inert gas (K-TIG) welding, renowned for its high efficiency, high precision, and cost ...
Shuwan Cui   +4 more
doaj   +1 more source

Ultra Short Pulse Laser Welding of Glass to Metal in the Low Fluence Regime

open access: yesLaser &Photonics Reviews, EarlyView.
Ultrashortpulse laser welding enables precise joining of glass and metal with minimal thermal damage. We introduce the TwoThresholds Criteria to identify suitable laser parameters by combining the nonlinearabsorption threshold in glass with the metalmodification fluence threshold.
Lukas Günther   +4 more
wiley   +1 more source

Polycarbonate Vitrimers and Dynamic Co‐Networks From Epoxide/Carbon Dioxide Copolymerization

open access: yesMacromolecular Rapid Communications, EarlyView.
This work demonstrates how CO2‐derived poly(propylene carbonate) and poly(cyclohexene carbonate) backbones influence vitrimer thermo‐mechanical behavior. By tuning backbone composition, epoxide crosslinker chemistry and blend ratios, the crosslinked materials span a wide property window, from highly extensible to stiff, glassy networks, establishing an
Satej S. Joshi   +3 more
wiley   +1 more source

Identification of additional process parameters for impact welding and their influence on the process window

open access: yes, 2018
Impact welding in general facilitates the metallurgical bond even between dissimilar metals due to the lack of extensive heat input. It thus offers superior joint properties such as a good mechanical strength. However, in contrast to fusion welding, the fundamentals are not fully understood.
Pabst, C., Pasquale, P.
openaire   +2 more sources

Chemically and Mechanically Recyclable Polyolefins Incorporating Covalent Adaptable Networks

open access: yesMacromolecular Rapid Communications, EarlyView.
Low‐molecular‐weight polypropylene is converted into a crosslinked polyolefin containing a covalently adaptable network. The semicrystalline material remains melt‐processable and mechanically recyclable. Its thermal and mechanical properties are comparable to commercial polyolefins.
Andrii Tiiara   +4 more
wiley   +1 more source

Reprocessable Disulfide‐Based Vitrimers with Adhesive Properties

open access: yesMacromolecular Rapid Communications, EarlyView.
A dual‐curing strategy combining UV‐induced thiol–ene polymerization and thermal thiol–epoxy curing was used to prepare disulfide‐based vitrimer networks with reprocessable, recyclable, and adhesive properties enabled by dynamic disulfide exchange. ABSTRACT A family of disulfide (S–S) containing thiol–vinyl–epoxy dynamic networks are presented.
Sasan Moradi   +4 more
wiley   +1 more source

A Comparison of Classical Constitutive Models for High‐Entropy Alloy Behavior: Effects of Medium Strain Rates and Temperature on Plastic Flow

open access: yesMaterials Genome Engineering Advances, EarlyView.
Four constitutive models are evaluated for FeCoNiCr and Al0.6FeCoNiCr HEAs under wide temperature and strain‐rate conditions. The predictive capabilities and limitations of each model are then critically assessed, with particular emphasis on strain rate sensitivity, temperature dependence, and physically unrealistic responses at extreme loading ...
Yooseob Song   +3 more
wiley   +1 more source

Detecting Loosening of Bolt‐Flanged Pipe Using Smoothed Pseudo Wigner–Ville Distribution: Digital Twin‐Based Approach Using Convolution Neural Networks

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT In this paper, an integrated digital twin‐based fault‐diagnosis framework is proposed to detect bolt loosening in flanged pipe connections. The approach combines finite element‐based numerical modeling, experimental modal analysis, and advanced signal processing‐assisted deep learning to achieve reliable loosening detection under operational ...
Milad Shabani Yousefabad   +4 more
wiley   +1 more source

Effect of Nominal Laminate Thickness on Consolidation Quality and Tensile Properties of Compression‐Molded Polyetherketoneketone/Carbon Fiber Composites

open access: yesPolymer Composites, EarlyView.
Effect of Mold Cavity Thickness on Consolidation Quality and Tensile Strength of CF/PEKK Composites. ABSTRACT Carbon‐fiber‐reinforced thermoplastic composites have attracted growing attention as high‐performance structural materials due to their superior toughness, shorter processing cycles, and recyclability.
Hyunseok Choi   +3 more
wiley   +1 more source

Experimental and numerical study on the mechanism of interlayer explosive welding

open access: yesJournal of Materials Research and Technology
Currently, a gap in understanding the mechanism of interlayer explosives exists. This study systematically investigated this mechanism using TP 270C/SUS 821L1 to fill this knowledge gap.
Xiang Chen   +6 more
doaj   +1 more source

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