Results 1 to 10 of about 2,514 (216)

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

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 ...
Bruchhausen, M.   +6 more
exaly   +2 more sources

DBTT shift of Optifer-IX, Eurofer 97 and MA956 steels after irradiation evaluated with small punch tests

open access: yesJournal of Nuclear Materials, 2021
Abstract In order to analyze the irradiation-induced changes of ductile-to-brittle transition temperature (DBTT) of ferritic/martensitic (FM) steels, small punch (SP) tests were conducted on the specimens of Optifer-IX, Eurofer 97 and MA956 steels after irradiation in a target of the Swiss spallation neutron source (SINQ) at doses between 8.5 and 18 ...
C.F. Yao, Y. Dai
exaly   +2 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

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   +1 more source

Performance of VIDEBAS in an operational environment [PDF]

open access: yes, 1984
VIDEBAS is a relational database management system in which a database consists of two parts, namely a “real-only” and an “update” part. The first part remains unmodified until the next reorganization and exploits redundancy to achieve fast access to ...
Blanken, H.M.
core   +6 more sources

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

Home - About - Disclaimer - Privacy