Results 11 to 20 of about 5,775 (200)

High-Temperature Creep-Fatigue Behavior of Alloy 617

open access: yesMetals, 2018
This paper presents the high-temperature creep-fatigue testing of a Ni-based superalloy of Alloy 617 base metal and weldments at 900 °C. Creep-fatigue tests were conducted with fully reversed axial strain control at a total strain range of 0.6%, 1.2 ...
Rando Tungga Dewa   +3 more
doaj   +1 more source

A Study on Creep-Fatigue Evaluation of Nuclear Cladded Components by ASME-III Division 5

open access: yesEnergies, 2023
In this paper, a study on creep-fatigue evaluation on the cladded nuclear component subjecting to low pressure and high temperature services is carried out. To do this, the codes and standards presented by ASME-III Division 5 are reviewed, and a detailed
Gyeong-Hoi Koo   +5 more
doaj   +1 more source

An Explicit Creep-Fatigue Model for Engineering Design Purposes

open access: yesMetals, 2018
Background: Creep-fatigue phenomena are complex and difficult to model in ways that are useful from an engineering design perspective. Existing empirical-based models can be difficult to apply in practice, have poor accuracy, and lack economy.
Dan Liu, Dirk John Pons
doaj   +1 more source

Investigating creep behavior of Ni–Cr–W alloy pressurized tube at 950 °C by using in-situ creep testing system

open access: yesNuclear Engineering and Technology, 2020
The creep behavior of Ni–Cr–W alloy at 950 °C has been investigated by a novel creep testing system which is capable of in-situ measurement of strain. Tubular specimens were pressurized with argon gas for effective stresses up to 32 MPa.
Yang Zhong   +6 more
doaj   +1 more source

Cyclic creep behaviour of two-phase Ti-6Al-2Mo-2Cr alloy [PDF]

open access: yesMATEC Web of Conferences, 2020
One of the important criteria for selection titanium alloys for discs and blades of turbine engine compressor is their fatigue and creep strength at room and elevated temperature.
Ziaja Waldemar   +3 more
doaj   +1 more source

Relationships between Microstructural Parameters and Time-Dependent Mechanical Properties of a New Nickel-Based Superalloy AD730™

open access: yesMetals, 2015
High temperature creep and dwell-fatigue properties of the new nickel-based superalloy AD730™ have been investigated. Three microstructures have been studied in creep (850 °C and 700 °C) and dwell-fatigue (700 °C stress control with trapezoidal signals ...
Louis Thébaud   +8 more
doaj   +1 more source

Development of damage evaluation system for heat resistant steel for creep and creep fatigue based on deep learning of grain shape and strain information by EBSD observation

open access: yesCogent Engineering, 2021
EBSD observations were conducted on the damaged materials obtained by interrupted creep tests and interrupted creep-fatigue tests for 304 austenitic stainless steel for boiler tube use in fossil power plants, and the shapes of crystal grains extracted ...
Yu Kurashige   +2 more
doaj   +1 more source

Creep-fatigue life evaluation of circular notch specimen on a CrMoV forging steel under multiaxial stress gradient condition

open access: yesNihon Kikai Gakkai ronbunshu, 2018
Creep-fatigue damage preferentially exceeds at stress concentration portions in high temperature components such as steam turbine rotors during cyclic start up- shut down operation.
Takashi OGATA   +2 more
doaj   +1 more source

Operation-Adaptive Damage Assessment of Steam Turbines Using a Nonlinear Creep-Fatigue Interaction Model

open access: yesIEEE Access, 2020
For sustainable operation, power plants require accurate damage assessment of the steam turbines used for power generation. In the past few decades, steam turbine designs have considered only steady-state operation, without accounting for thermal cyclic ...
Woosung Choi   +2 more
doaj   +1 more source

Studies of High-Temperature Fatigue Behavior and Mechanism for Nickel-Based Superalloy Inconel 625

open access: yesMetals, 2022
Strain-controlled continuous fatigue and creep–fatigue tests were carried out at 700 °C and 800 °C on Inconel 625 alloy. The effects of strain rate and tensile-hold time on cyclic stress response and fatigue life were investigated.
Zhenxing Wu   +4 more
doaj   +1 more source

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