Results 61 to 70 of about 2,791 (220)

Galvanised steel to aluminium joining by laser and GTAW processes,

open access: yes, 2008
A new means of assembling galvanised steel to aluminium involving a reaction between solid steel and liquid aluminium was developed, using laser and gas tungsten arc welding (GTAW) processes.
Fras, Gilles   +5 more
core   +1 more source

A comparative study on the microstructure and mechanical properties of fusion welded 9 Cr-1 Mo steel

open access: yesJournal of Materials Research and Technology, 2020
Modified 9 Cr–1 Mo is an ideal candidate preferred for high temperature applications in power plants. In this study, three P91 welds of 12 mm thickness are produced using Gas Tungsten Arc Welding (GTAW), Cold Metal Transfer (CMT) and Pulsed-CMT (P-CMT ...
S. Madhavan, M. Kamaraj, B. Arivazhagan
doaj   +1 more source

Arc characteristics of GTAW under high pressure

open access: yesSādhanā, 2019
The characteristics of GTA (gas tungsten arc) under high pressure has been studied in this paper to reveal the special arc phenomenon from the ambient pressure. A totally new hyperbaric GTAW experiment system has been built, including a hyperbaric environment simulator (0.1-3.5 MPa), an automatic GTAW machine with cooling, the moving equipment, a ...
Shaojie Wu, Shan Gong, Hongming Gao
openaire   +2 more sources

A review of cathode-arc coupling modeling in GTAW [PDF]

open access: yesWelding in the World, 2016
Material properties of welds are strongly influenced by the thermal history, including the thermo-fluid and electromagnetic phenomena in the weld pool and the arc heat source. A necessary condition for arc heat source models to be predictive is to include the plasma column, the cathode, and the cathode layer providing their thermal and electric ...
Alireza Javidi Shirvan, Isabelle Choquet
openaire   +1 more source

Preventing columnar grains growth during hybrid wire arc additive manufacturing of austenitic stainless steel 316L

open access: yesEngineering Reports, Volume 6, Issue 11, November 2024.
WAAM process produce a wall structure full of long and large columnar grains, which can be improved by applying hot forging process, proper buildup process, and correct forging force & temperature to prevent the growth of columnar grains and producing small and equiaxed grains instead.
Abdulaziz I. Albannai   +2 more
wiley   +1 more source

An extensive analysis of GTAW process and its influence on the microstructure and mechanical properties of SDSS 2507

open access: yesJournal of Materials Research and Technology
The Gas Tungsten Arc Welding (GTAW) process is well-known for its accuracy, simplicity, and economical, making it the optimum method for joining Super Duplex Stainless Steel (SDSS) materials.
Sujeet Kumar   +5 more
doaj   +1 more source

Preparation and Characterization of Ti‐6‐4 and Ti‐8‐1‐1 Metal Matrix Composites with High Specific Stiffness Using Powder Hot Extrusion and Arc Remelting

open access: yesAdvanced Engineering Materials, Volume 26, Issue 14, July 2024.
Powder hot extrusion and heat treatment of titanium metal matrix composite's lead to high specific stiffnesses of 34.6 GPa cm3 g−1. Remelting, to simulate an additive manufacturing method, of these materials results in severe changes of the microstructure and a decrease in the mechanical properties even with ex situ reinforcements. Titanium alloys with
Nico Moser   +7 more
wiley   +1 more source

Open-Closed-Loop Iterative Learning Control With a Self-Adjustive Factor of the Gas Tungsten Arc Welding (GTAW) Process

open access: yesIEEE Access, 2020
Human welder’s experiences and skills are critical for producing quality welds in manual gas tungsten arc welding (GTAW) process. For batch welding of the same workpiece, and the welding experience accumulated in same welding track, the welding ...
Nan Yin, Liu Hanwen, Yang Wu
doaj   +1 more source

Experimental Investigation of DSS/HRS GTAW Weldments

open access: yesIndian Journal of Science and Technology, 2016
Objectives: The Gas Tungsten Arc Welding (GTAW) of blanks 2 mm thick of Duplex Stainless Steel (DSS) and Hot Rolled Medium and High Tensile Structural Steel (HRS) is carried out to investigate the metallurgical, mechanical properties and the fracture. Methods: The characterization of the weldments involves tests, viz.
D. Devakumar   +3 more
openaire   +1 more source

Effect of Nitrogen‐Added Shielding Gas on Microstructure Evolution of Welded Joints by Gas Tungsten Arc Welding Process in Duplex Stainless Steel 2205

open access: yessteel research international, Volume 95, Issue 5, May 2024.
A challenge in welding duplex stainless steels is to limit ferritization in the heat‐affected zone to ensure high corrosion resistance. The work describes the influence of nitrogen gas in the Ar–N2 shielding atmosphere during a gas tungsten arc welding process.
Bryan Ramiro Rodriguez‐Vargas   +3 more
wiley   +1 more source

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