Results 81 to 90 of about 226,779 (310)

Fatigue Properties of Long-Term Thermally Aged Low-Alloy Steel

Metals
Fatigue properties of low-alloy steels, LAS, are well defined in air and at the beginning of life. However, the potential influence from thermal ageing under conditions relevant for the nuclear industry is uncertain. In this study, the fatigue properties
Robert Magnusson, Thomas Damiani, Pål Efsing   +2 more
doaj   +1 more source

Combined Cycle Fatigue Investigation Based on Energy Principle

MATEC Web of Conferences, 2016
We present a modified energy-principle based model of fatigue damage accumulation in high temperature alloys usually used in gas turbine engine under combined high cycle fatigue and low cycle fatigue (LCF/HCF) loading conditions.
Kalynenko Mykyta
doaj   +1 more source

Acoustic emission and stage of high-cycle fatigue

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2005
From the material echo point of view, talking about high-cycle fatigue, when nondestructive tests of acoustic emissions has been made. Five stages of steel fatigue have been approved and divided agreeably with the shape of individual records.
Michal Černý, Pavel Mazal, Josef Filípek, Lucie Zyková   +3 more
doaj   +1 more source

Development of a fretting-fatigue mapping concept: The effect of material properties and surface treatments [PDF]

, 2009
Fretting-fatigue induced by combined localized cyclic contact motion and external bulk fatigue loadings may result in premature and dramatic failure of the contacting components.
Kubiak, K, Kubiak, Krzysztof, Fouvry, S, Fouvry, S.   +3 more
core   +1 more source

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

Advanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice, Krzysztof S. Stopka, Michael D. Sangid   +2 more
wiley   +1 more source

Fatigue life of high strength steel for cold forming

Metalurgija, 2017
The article presents the results of fatigue tests carried out on STRENX-type high-strength cold forming steel. For high-cycle fatigue tests carried out using low cycle loading frequencies of around 30 Hz, a ROTOFLEX machine was used. For ultra high-cycle
R. Ulewicz, F. Novy
doaj  

A cumulative damage model for fatigue life estimation of high-strength steels in high-cycle and very-high-cycle fatigue regimes

, 2012
A cumulative fatigue damage model is presented to estimate fatigue life for high-strength steels in high-cycle and very-high-cycle fatigue regimes with fish-eye mode failure, and a simple formula is obtained.
赵爱国, Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China., 孙成奇, 雷铮强, 谢季佳, Hong, Y, 洪友士   +6 more
core   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Effect of welding defects on fatigue behavior of Ni-base superalloy GH4065A

Journal of Aeronautical Materials
The spot-welding defects of highly alloyed Ni-base superalloy GH4065A were investigated by using SEM and EBSD analysis methods. Effects of the welding defects on fatigue life and fracture behavior were studied by comparing thin plate samples with a ...
LI Linhan, ZHANG Ji, TIAN Chenggang, YANG Shanjie, SHEN Zhongmin, ZHANG Wenyun, ZHANG Beijiang   +6 more
doaj   +1 more source

Consumed by Abdominal Distention

Arthritis Care &Research, EarlyView.
Abimbola Fadairo‐Azinge, James Grenert, Brian Haas, Mary Margaretten   +3 more
wiley   +1 more source