Results 31 to 40 of about 29,317 (303)

A Review on Fretting Fatigue Life Prediction Methods

open access: yesNanjing Hangkong Hangtian Daxue Xuebao
Through a review of relevant domestic and international literatures on fretting fatigue research, this paper first introduces the concept and characteristics of fretting fatigue.
LI Wei   +5 more
doaj   +1 more source

THE CRITERIA OF EXTENDED TENSION IN THE FRETTING PHENOMENON [PDF]

open access: yesAnalele Universităţii "Constantin Brâncuşi" din Târgu Jiu: Seria Inginerie, 2019
Fretting is now fully identified as a small amplitude oscillatory motion which induces a harmonic tangential force between two surfaces in contact. It is related to three main loadings, i.e. fretting-wear, frettingfatigue and fretting corrosion.
Ștefan Ghimiși
doaj  

Fretting fatigue behaviour of Ni-free high-nitrogen stainless steel in a simulated body fluid

open access: yesScience and Technology of Advanced Materials, 2013
Fretting fatigue behaviour of Ni-free high-nitrogen steel (HNS) with a yield strength of about 800 MPa, which was prepared by nitrogen gas pressurized electroslag remelting, was studied in air and in phosphate-buffered saline (PBS(-)).
Norio Maruyama, Sachiko Hiromoto, Eiji Akiyama and Morihiko Nakamura
doaj   +1 more source

Multiaxial High Cycle Fretting Fatigue [PDF]

open access: yesMATEC Web of Conferences, 2019
The aim of this work is to show that multiaxial fatigue can be successfully adpted to model fretting problems. For instance, the paper presents (i) the critical direction method, as an alternative to the critical plane concept, to model the crack ...
Alexander Araújo José   +3 more
doaj   +1 more source

Finite Element Simulation and Fretting Wear Prediction of a Tenon Connection Structure

open access: yesLubricants, 2023
A tenon connection structure is widely used for the blade-disk connection in turbomachinery, and its ability to resist wear influences operation life.
Zexin Zhang   +4 more
doaj   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +1 more source

Initiation of fretting fatigue scar of Ti-6Al-4V alloy dependent on the influence of its surface roughness [PDF]

open access: yesJurnal Tribologi, 2018
This paper reports on the experimental studies undertaken to detect the early stage when appears the fretting wear of the Ti-6Al-4V alloy used for the hip prostheses. Wear is a critical aspect for estimating the fretting fatigue.
Lucian Capitanu   +2 more
doaj  

Understanding the microstructural evolution and fretting wear behaviors of M50 bearing steel heat treated at different temperatures

open access: yesJournal of Materials Research and Technology, 2023
For M50 bearing steel, which is widely used in aerospace engine main bearings, fretting wear is an important but neglected category of wear failure during engine cold startup.
Wenting Wei   +6 more
doaj   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Prediction of Fretting Wear Lifetime of a Coated System

open access: yesMachines
This article proposes a model of predicting the fretting wear lifetime of a low-friction coating. The proposed model incorporates multiple factors that influence the fretting wear damage of coatings: the imposed contact load, imposed average velocity ...
Kyungmok Kim
doaj   +1 more source

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