Results 141 to 150 of about 95,006 (332)

Variations of VHCF Characteristics by Microstructure of a Spring Steel to UNSM Treatment

open access: yes한국해양공학회지
The bainitic structure resulting from the austempering of spring steel exhibits high strength and ductility. On the other hand, there appears to be no study on the effects of very high cycle fatigue (VHCF) and ultrasonic nanocrystal surface modification (
Seung-Hoon Nahm   +2 more
doaj   +1 more source

Recycling End‐of‐Life Solid Oxide Cell Interconnect Assemblies into Commercial‐Grade AISI 304 Stainless Steels

open access: yessteel research international, EarlyView.
This study validates a recycling pathway for converting interconnect assemblies from end‐of‐life SOC stacks into commercial‐grade AISI 304 steels. Using scrap‐based steelmaking operations, austenitic cast steels with <4.0% δ‐ferrite are successfully produced.
Jeraldine Lastam   +7 more
wiley   +1 more source

Numerical thermo-elasto-plastic analysis of residual stresses on different scales during cooling of hot forming parts [PDF]

open access: yes, 2019
In current research, more and more attention is paid to the understanding of residual stress states as well as the application of targeted residual stresses to extend e.g. life time or stiffness of a part.
Brands, D.   +3 more
core  

Effect of Solution Temperature on the Microstructure of 18%Ni Maraging Steel Modified With Nb—X‐Ray Diffraction and Electron Backscattered Scanning Diffraction (EBSD) Analyzes

open access: yesX-Ray Spectrometry, EarlyView.
ABSTRACT Maraging steels are high strength alloys used in applications that require both high mechanical strength and toughness. To achieve these properties, one of the heat treatments applied is solution treatment, although it can reduce toughness.
M. V. Moraschini   +5 more
wiley   +1 more source

Influence of Different Notch Insertion Methods on the Fatigue Behavior of Metastable Cr‐Ni‐Cu‐N and AISI 316L Austenitic Stainless Steels

open access: yesFatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT The fatigue behavior of a metastable austenitic Cr‐Ni‐Cu‐N steel and an austenitic AISI 316L steel was investigated with a focus on the effect of mechanically machined and formed notches, taking into account hardness and residual stress measurements.
Pia Nitzsche   +7 more
wiley   +1 more source

On the Identification of Dissipative Phenomena in Fatigue‐Loaded 2024 Aluminum by Means of Second Harmonic of Temperature Analysis

open access: yesFatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT This study explores the use of temperature harmonics to detect intrinsic dissipation during cyclic loading in aluminum alloys. Under sinusoidal loading, the temperature of a solid is modulated by thermomechanical heat sources. The primary source is the thermoelastic effect, which modulates the temperature at the load frequency and twice the ...
Riccardo Cappello   +3 more
wiley   +1 more source

Impact Toughness and Fatigue Crack Propagation in Carbide‐Free Bainite: The Adverse Role of Retained Austenite and Martensite‐Austenite Islands

open access: yesFatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT The deformation behavior of carbide‐bearing bainite (CBB) and carbide‐free bainite (CFB) under various loading conditions is investigated. Retained austenite (RA) in CFB enhances strength and ductility only under uniaxial tension through gradual strain‐induced martensitic transformation, yet deteriorates impact toughness and fatigue crack ...
Oguz Gulbay   +2 more
wiley   +1 more source

Microtextures and structures in metal–sulfide grains in NWA 869 meteorite and their relation to thermal history of L‐chondrite parent body

open access: yesMeteoritics &Planetary Science, Volume 60, Issue 3, Page 616-631, March 2025.
Abstract Results of microanalysis study of NWA 869 meteorite, an ordinary chondrite, where silicates, Fe‐Ni alloys, and troilite are major constituents, are reported. The presented study of microtextures in metallic and sulfide grains provides information on processes occurring from the asteroid's accretion, through the impacts until cooling.
Paulina Skirak   +4 more
wiley   +1 more source

4D Printing of Composite Thermoplastic Elastomers for Super‐Stretchable Soft Artificial Muscles

open access: yesJournal of Applied Polymer Science, Volume 142, Issue 29, August 5, 2025.
ABSTRACT This study explores the development of soft, super‐stretchable artificial muscles by 4D printing of composite thermoplastic elastomers. A propylene‐based elastomer, combined with carbon black (CB) nanoparticles, is utilized to develop nanocomposite elastomers with enhanced mechanical properties.
Abbas Bayati   +6 more
wiley   +1 more source

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