Effects of wire feed conditions on in situ alloying and additive layer manufacturing of titanium aluminides using gas tungsten arc welding

2014 ◽  
Vol 29 (17) ◽  
pp. 2066-2071 ◽  
Author(s):  
Yan Ma ◽  
Dominic Cuiuri ◽  
Nicholas Hoye ◽  
Huijun Li ◽  
Zengxi Pan
Keyword(s):  
Arc Welding ◽  
Titanium Aluminides ◽  
Gas Tungsten Arc Welding ◽  
Additive Layer Manufacturing ◽  
Gas Tungsten Arc ◽  
Layer Manufacturing ◽  
Gas Tungsten ◽  
Image Position ◽  
Wire Feed

Abstract

In-Situ Neutron Diffraction Study of Gas Tungsten Arc Welding of a 1018 Plain Carbon Steel

2007 ◽  
Vol 1027 ◽  
Author(s):  
Michael Gharghouri ◽  
Michael J Watson ◽  
David Dye ◽  
Ronald B Rogge
Keyword(s):  
Neutron Diffraction ◽  
Arc Welding ◽  
Neutron Diffraction Study ◽  
Plain Carbon Steel ◽  
Gas Tungsten Arc Welding ◽  
Gas Tungsten Arc ◽  
Gtaw Process ◽  
Gas Tungsten ◽  
In Situ Neutron Diffraction

AbstractIn-situ neutron diffraction measurements of a dynamic Gas Tungsten Arc Welding (GTAW) process have been performed using a unique instrument that establishes steady-state conditions by translating and rotating a cylindrical specimen past a stationary weld torch. The fixed neutron sampling volume is at a constant location with respect to the torch as new material is brought into the fusion zone. We present maps of lattice spacing and integrated intensity as a function of location about the weld torch, which provide insight into the temperature and phase distributions around the weld.

scholarly journals Temperature and Microstructure Evolution in Gas Tungsten Arc Welding Wire Feed Additive Manufacturing of Ti-6Al-4V

Materials ◽  
2019 ◽  
Vol 12 (21) ◽  
pp. 3534 ◽  
Author(s):  
Corinne Charles Murgau ◽  
Andreas Lundbäck ◽  
Pia Åkerfeldt ◽  
Robert Pederson
Keyword(s):  
Additive Manufacturing ◽  
Process Simulation ◽  
Arc Welding ◽  
Gas Tungsten Arc Welding ◽  
Feed Additive ◽  
Welding Wire ◽  
Gas Tungsten Arc ◽  
Gas Tungsten ◽  
Microstructural Modelling ◽  
Wire Feed

In the present study, the gas tungsten arc welding wire feed additive manufacturing process is simulated and its final microstructure predicted by microstructural modelling, which is validated by microstructural characterization. The Finite Element Method is used to solve the temperature field and microstructural evolution during a gas tungsten arc welding wire feed additive manufacturing process. The microstructure of titanium alloy Ti-6Al-4V is computed based on the temperature evolution in a density-based approach and coupled to a model that predicts the thickness of the α lath morphology. The work presented herein includes the first coupling of the process simulation and microstructural modelling, which have been studied separately in previous work by the authors. In addition, the results from simulations are presented and validated with qualitative and quantitative microstructural analyses. The coupling of the process simulation and microstructural modeling indicate promising results, since the microstructural analysis shows good agreement with the predicted alpha lath size.

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