Results 111 to 120 of about 56,317 (312)

Cyclic fatigue resistance of new and used ProTaper universal and ProTaper next nickel-titanium rotary instruments

open access: yesSaudi Endodontic Journal, 2018
Aim: This study aims to compare the cyclic fatigue resistance of new and used ProTaper Universal (PTU) and ProTaper Next (PTN) rotary nickel-titanium systems using artificial canals.
Neslihan Büşra Keskin   +3 more
doaj   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han   +5 more
wiley   +1 more source

A study of fatigue crack propagation in quenched and tempered and controlled rolled HSLA steels. [PDF]

open access: yes, 1987
A range of HSLA steels reflecting the two major processing routes, quench and tempering and controlled rolling, have been tested in fatigue to assess their potential wider application in the offshore Industry.
Callister, D. R.
core  

Assessment of low cycle fatigue improvement of machined AISI 316 stainless steel by brush hammering [PDF]

open access: yes, 2014
The effects of wire brush hammering on low cycle fatigue behaviour of AISI 316 austenitic stainless steel has been investigated on turned samples through an experimental study combining strain controlled fatigue tests, scanning electron microscope ...
SIDHOM, Habib   +13 more
core   +1 more source

Effect of cyclic loads on fatigue behavior of Ni–Cr–B–Si cladding on 316L(N) SS using PTA process

open access: yesAIP Advances
316L(N) stainless steel (SS) components in Sodium-Cooled Fast Reactors (SFRs) are hardfaced with NiCrBSi alloy in order to avoid self-welding. Hardfacing is performed by the plasma transferred arc welding (PTA) process, as it gives lesser dilution ...
Amruta Pasarkar, Balaguru Sethuraman
doaj   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

open access: yesAdvanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee   +7 more
wiley   +1 more source

The effects of surface defects on the fatigue of water and oil lubricated contacts [PDF]

open access: yes, 2000
A study into effects of surface defects on the rolling contact fatigue of brass and rail steel has been undertaken on a twin-disc rolling-sliding test machine with both oil and water lubrication.
Gao, N., Dwyer-Joyce, R. S.
core   +1 more source

Fatigue properties and damage constitutive model of salt rock based on CT scanning

open access: yesInternational Journal of Mining Science and Technology
To investigate the macroscopic fatigue properties and the mesoscopic pore evolution characteristics of salt rock under cyclic loading, fatigue tests under different upper-limit stresses were carried out on salt rock, and the mesoscopic pore structures of
Junbao Wang   +5 more
doaj   +1 more source

Low cycle fatigue behavior of die cast Mg-Al-Mn-Ce magnesium alloy [PDF]

open access: yesChina Foundry, 2013
Fatigue failure is a main failure mode for magnesium and other alloys. It is beneficial for fatigue design and fatigue life improvement to investigate the low cycle fatigue behavior of magnesium alloys.
Wu Wei, Dai Li, Che Xin
doaj  

Optimization of the Production of Rubber Compounds Using Mathematical Models

open access: yesAdvanced Engineering Materials, EarlyView.
Rubber compounds were mixed in a batch internal mixer, and symbolic regression was used to derive mathematical models linking recipe and process parameters to ram path, torque, and mixing quality (incorporation, dispersion, distribution). Subsequent optimization with evolutionary algorithms identified operating conditions that reduce specific energy ...
Anke Bardehle   +7 more
wiley   +1 more source

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