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
2016 ◽  
Vol 24 ◽  
pp. 186-194 ◽  
Author(s):  
R.P. Turner ◽  
D. Howe ◽  
B. Thota ◽  
R.M. Ward ◽  
H.C. Basoalto ◽  
...  

2008 ◽  
Vol 204 (1-3) ◽  
pp. 48-58 ◽  
Author(s):  
Richard Moat ◽  
Mallikarjun Karadge ◽  
Michael Preuss ◽  
Simon Bray ◽  
Martin Rawson

2006 ◽  
Vol 524-525 ◽  
pp. 393-398 ◽  
Author(s):  
M. Karadge ◽  
Benedict M.B. Grant ◽  
Giovanni Bruno ◽  
Javier R. Santisteban ◽  
Philip J. Withers ◽  
...  

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.


2010 ◽  
Vol 50 (11) ◽  
pp. 1666-1670 ◽  
Author(s):  
Yuanzhi Zhu ◽  
Zhimin Yin ◽  
Dongmei Liang ◽  
Junchao Li ◽  
Xiang Zhidong

Author(s):  
M. Karadge ◽  
Benedict Grant ◽  
G. Bruno ◽  
J.R. Santisteban ◽  
Philip J. Withers ◽  
...  

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

Materials ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4366
Author(s):  
Saqib Anwar ◽  
Ateekh Ur Rehman ◽  
Yusuf Usmani ◽  
Ali M. Al-Samhan

This study evaluated the microstructure, grain size, and mechanical properties of the alloy 800H rotary friction welds in as-welded and post-weld heat-treated conditions. The standards for the alloy 800H not only specify the composition and mechanical properties but also the minimum grain sizes. This is because these alloys are mostly used in creep resisting applications. The dynamic recrystallization of the highly strained and plasticized material during friction welding resulted in the fine grain structure (20 ± 2 µm) in the weld zone. However, a small increase in grain size was observed in the heat-affected zone of the weldment with a slight decrease in hardness compared to the base metal. Post-weld solution heat treatment (PWHT) of the friction weld joints increased the grain size (42 ± 4 µm) in the weld zone. Both as-welded and post-weld solution heat-treated friction weld joints failed in the heat-affected zone during the room temperature tensile testing and showed a lower yield strength and ultimate tensile strength than the base metal. A fracture analysis of the failed tensile samples revealed ductile fracture features. However, in high-temperature tensile testing, post-weld solution heat-treated joints exhibited superior elongation and strength compared to the as-welded joints due to the increase in the grain size of the weld metal. It was demonstrated in this study that the minimum grain size requirement of the alloy 800H friction weld joints could be successfully met by PWHT with improved strength and elongation, especially at high temperatures.


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