Results 21 to 30 of about 12,587 (316)

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

Application of the linear matching method to creep-fatigue failure analysis of cruciform weldment manufactured of the austenitic steel AISI type 316N(L) [PDF]

open access: yes, 2012
This paper demonstrates the recent extension of the Linear Matching Method (LMM) to include cyclic creep assessment [1] in application to a creep-fatigue analysis of a cruciform weldment made of the stainless steel AISI type 316N(L). The obtained results
Chen H. F., H. Chen, Y. Gorash
core   +1 more source

CREEP FATIGUE, PART II: Creep Fatigue Life Prediction: Methods and Trends [PDF]

open access: yesHigh Temperature Materials and Processes, 1995
Creep-fatigue data of low allow steels were compiled from international sources, and trends in creep-fatigue behavior were identified in Paper I. This paper reviews the methods of creep-fatigue life prediction that were assessed from the compiled data. The methods reviewed in this paper are phenomenological in nature.
openaire   +3 more sources

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

Muscle Activity Adaptations to Spinal Tissue Creep in the Presence of Muscle Fatigue. [PDF]

open access: yesPLoS ONE, 2016
The aim of this study was to identify adaptations in muscle activity distribution to spinal tissue creep in presence of muscle fatigue.Twenty-three healthy participants performed a fatigue task before and after 30 minutes of passive spinal tissue ...
Jacques Abboud   +2 more
doaj   +1 more source

Modeling of creep-fatigue interaction effects on crack growth at elevated temperatures

open access: yesMATEC Web of Conferences, 2018
The well-known load frequency effect on creep-fatigue crack growth is explained by the interactions between fatigue and creep loading and is quantified using the concept of plasticity-induced crack closure.
Potirniche Gabriel P.
doaj   +1 more source

Influence of corrosion and creep on intergranular fatigue crack path in 2XXX aluminium alloys [PDF]

open access: yes, 2010
In this paper, two examples of the influence of time-dependent processes on crack path in two 2XXX aluminium alloys are presented. The first example is concerned with corrosion–fatigue crack growth resistance of a 2024 T351 alloy cracked in the S–L ...
Hénaff, Gilbert   +2 more
core   +3 more sources

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