Results 1 to 10 of about 761 (201)

Recent developments in small punch testing: Tensile properties and DBTT

open access: yesTheoretical and Applied Fracture Mechanics, 2016
AbstractNeutron irradiation and temper embrittlement in nuclear power plants (NPPs) lead to microstructural changes in structural materials which induce a shift of the ductile to brittle transition temperature (DBTT) towards higher temperatures. Monitoring of the DBTT in NPP components receives therefore considerable attention — in particular in the ...
S Holmström
exaly   +4 more sources

Correlation between Processing, Morphology and Impact Resistance of PBT/ABS Blends [PDF]

open access: yesMaterials Research, 2017
To understand the processing influence in an intermeshing corotating twin-screw extrusion (ICTSE) on the morphology and impact properties of the uncompatibilized PBT/ABS (70/30) blend, it was submitted to different processing parameters. In this way both
André Cortegoso Prezenszky   +3 more
doaj   +2 more sources

Machine learning-based correlation of charpy impact properties between sub-sized and standard-sized specimens for nuclear structural materials [PDF]

open access: yesScientific Reports
Reliable correlations of Charpy impact test results between sub-sized and full-sized specimens are essential for structural integrity assessments, particularly in nuclear applications, where spatial constraints and limited material volume restrict ...
Yugandhar Kasala Sreenivasulu   +7 more
doaj   +2 more sources

Comportamiento a fatiga de baja frecuencia del compuesto Rene®80 recubierto de aluminuro de platino cerca y por encima del DBTT

open access: yesRevista de Metalurgia, 2020
La superaleación Rene®80 a base de Ni se utiliza para fabricar álabes de turbinas de gas en motores a reacción. La vida útil de algunas palas de turbina de motores a reacción está limitada por la fatiga de baja frecuencia y esta propiedad se ha visto ...
Mohammad Mehdi Barjesteh   +3 more
doaj   +3 more sources

Identifying intrinsic factors for ductile-to-brittle transition temperatures in Fe–Al intermetallics via machine learning

open access: yesJournal of Materials Research and Technology, 2023
The determination of ductile-to-brittle transition temperatures (DBTT) in intermetallic compounds is crucial for assessing their practical applications.
Dexin Zhu   +9 more
doaj   +1 more source

Quantitative dependence of ductile-to-brittle transition on phosphorus grain boundary segregation for a novel Ni–Cr–Mo RPV steel

open access: yesJournal of Materials Research and Technology, 2021
SA508-4 N steel is considered a novel Ni–Cr–Mo low-alloy steel for reactor pressure vessels. The low-temperature embrittlement in the steel is an important issue that needs to be addressed.
Kai Wang, Yu Guo, Shenhua Song
doaj   +1 more source

Relation of embrittlement to phosphorus grain-boundary segregation for an advanced Ni–Cr–Mo RPV steel

open access: yesJournal of Materials Research and Technology, 2022
Embrittlement is an essential issue for reactor pressure vessel (RPV) steels. Grain-boundary segregation (GBS) of impurity phosphorous is one of the major reasons for non-hardening embrittlement of an RPV steel.
Yu Guo, Meng Wang, Kai Wang, S.H. Song
doaj   +1 more source

Relation between the Fatigue and Fracture Ductile-Brittle Transition in S500 Welded Steel Joints

open access: yesMetals, 2022
The formation and propagation of cracks occur through irreversible dislocation movements at notches, material defects, and grain boundaries. Since this process is partly thermally controlled, the resistance to dislocation movements at low temperatures ...
Finn Sallaba   +4 more
doaj   +1 more source

Structural nonuniformity: Impact on the cold resistance of low carbon microalloyed steel for building cоnstructions

open access: yesResults in Materials, 2020
The nonuniformity of macro- and microstructure of low-carbon microalloyed steel pipes across their wall thickness was estimated comprehensively using optical, scanning and transmission electron microscopy.
Alexander M. Arsenkin   +5 more
doaj   +1 more source

High-temperature tensile and thermal shock characterization of low-temperature rolled tungsten

open access: yesNuclear Materials and Energy, 2023
A developed tungsten (W) grade was prepared by powder metallurgy technology plus multi-step low-temperature rolling. The relative density, thermal conductivity, microstructure, tensile properties of original and high-temperature annealed states, micro ...
Xiaolei Ma   +9 more
doaj   +1 more source

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