scholarly journals Calculating the energy required to undergo the conditioning phase of a titanium alloy inertia friction weld

2016 ◽  
Vol 24 ◽  
pp. 186-194 ◽  
Author(s):  
R.P. Turner ◽  
D. Howe ◽  
B. Thota ◽  
R.M. Ward ◽  
H.C. Basoalto ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Conditioning Phase ◽  
Friction Weld ◽  
Inertia Friction Weld

scholarly journals A Study of the Deformation Derivatives for a Ti-6Al-4V Inertia Friction Weld

2021 ◽  
Vol 06 (02) ◽  
pp. 114-121
Author(s):  
Richard P. Turner ◽  
Nils Warnken ◽  
Jeffery W. Brooks
Keyword(s):  
Friction Weld ◽  
Inertia Friction Weld

Phase transformations across high strength dissimilar steel inertia friction weld

2008 ◽  
Vol 204 (1-3) ◽  
pp. 48-58 ◽  
Author(s):  
Richard Moat ◽  
Mallikarjun Karadge ◽  
Michael Preuss ◽  
Simon Bray ◽  
Martin Rawson
Keyword(s):  
Phase Transformations ◽  
High Strength ◽  
Dissimilar Steel ◽  
Friction Weld ◽  
Inertia Friction Weld

A Comparison of Strain Measurements on an Inertia Friction Weld Using the ENGIN-X and SALSA Neutron Strain Mapping Instruments

2006 ◽  
Vol 524-525 ◽  
pp. 393-398 ◽  
Author(s):  
M. Karadge ◽  
Benedict M.B. Grant ◽  
Giovanni Bruno ◽  
Javier R. Santisteban ◽  
Philip J. Withers ◽  
...  
Keyword(s):  
Weld Line ◽  
Nickel Superalloy ◽  
Rietveld Analysis ◽  
Medium Size ◽  
Strain Mapping ◽  
Strain Measurements ◽  
Neutron Spallation Source ◽  
Spallation Source ◽  
Friction Weld ◽  
Inertia Friction Weld

In this study we present a direct comparison between residual strain measurements carried out on the same inertia friction weld using ENGIN-X at ISIS, UK and the new strain scanner SALSA at ILL, France. ENGIN-X is a time of flight (TOF) instrument, which receives neutrons from a neutron spallation source, while the SALSA Strain-Imager, a high resolution diffractometer, is based at a research reactor source with a continuous neutron flux and is operated with a constant wavelength. The purpose of this study was to demonstrate a confidence in crosscomparing future strain measurements to be performed at ENGIN-X and SALSA. Measurements were carried out on medium size inertia friction welded nickel superalloy test-piece, which show no significant crystallographic texture across the weld line. The results demonstrate that, even though residual stresses determined on SALSA only rely on a single peak analysis (in this case the (111) reflection), the results show excellent agreement with the measurements carried out on ENGIN-X, where strain is determined from multi-peak Rietveld analysis.

scholarly journals Modeling of the Heat-Affected and Thermomechanically Affected Zones in a Ti-6Al-4V Inertia Friction Weld

2018 ◽  
Vol 50 (2) ◽  
pp. 1000-1011 ◽  
Author(s):  
R. P. Turner ◽  
B. Perumal ◽  
Y. Lu ◽  
R. M. Ward ◽  
H. C. Basoalto ◽  
...  
Keyword(s):  
Friction Weld ◽  
Inertia Friction Weld

Concurrent Electrodermal and Eyeblink Conditioning With Masked and Unmasked Stimuli

2021 ◽  
Vol 35 (1) ◽  
pp. 35-42
Author(s):  
José Luis Marcos ◽  
Azahara Marcos
Keyword(s):  
Unconditioned Stimulus ◽  
Strong Evidence ◽  
Eyeblink Conditioning ◽  
Noise Burst ◽  
Conditioning Phase ◽  
Contingency Awareness ◽  
Blank Screen ◽  
Neutral Face ◽  
Fearful Face

Abstract. The aim of this study was to determine if contingency awareness between the conditioned (CS) and unconditioned stimulus (US) is necessary for concurrent electrodermal and eyeblink conditioning to masked stimuli. An angry woman’s face (CS+) and a fearful face (CS−) were presented for 23 milliseconds (ms) and followed by a neutral face as a mask. A 98 dB noise burst (US) was administered 477 ms after CS+ offset to elicit both electrodermal and eyeblink responses. For the unmasking conditioning a 176 ms blank screen was inserted between the CS and the mask. Contingency awareness was assessed using trial-by-trial ratings of US-expectancy in a post-conditioning phase. The results showed acquisition of differential electrodermal and eyeblink conditioning in aware, but not in unaware participants. Acquisition of differential eyeblink conditioning required more trials than electrodermal conditioning. These results provided strong evidence of the causal role of contingency awareness on differential eyeblink and electrodermal conditioning.

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