scholarly journals Electron Beam Welding of Duplex Steels with using Heat Treatment

2010 ◽  
Vol 18 (28) ◽  
pp. 75-80 ◽  
Author(s):  
Ladislav Schwarz ◽  
Tatiana Vrtochová ◽  
Koloman Ulrich
Keyword(s):  
Heat Treatment ◽  
Energy Source ◽  
Corrosion Resistance ◽  
Electron Beam ◽  
Electron Beam Welding ◽  
Duplex Steels

Electron Beam Welding of Duplex Steels with using Heat Treatment This contribution presents characteristics, metallurgy and weldability of duplex steels with using concentrated energy source. The first part of the article describes metallurgy of duplex steels and the influence of nitrogen on their solidification. The second part focuses on weldability of duplex steels with using electron beam aimed on acceptable structure and corrosion resistance performed by multiple runs of defocused beam over the penetration weld.

Electron beam welding and heat treatment of welded joints of high-strength pseudo-β titanium alloy VT19

2018 ◽  
Vol 2018 (7) ◽  
pp. 10-14 ◽  
Author(s):  
S.V. Akhonin ◽  
◽  
V.Yu. Belous ◽  
R.V. Selin ◽  
E.L. Vrzhyzhevsky ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Titanium Alloy ◽  
Electron Beam ◽  
Welded Joints ◽  
Electron Beam Welding ◽  
High Strength

Microstructure and Corrosion Behavior of Cast A356 and Wrought AA6061 Aluminium Alloy Welds

2010 ◽  
Vol 117 ◽  
pp. 37-42
Author(s):  
K.Ratna Kumar ◽  
G. Madhusudhan Reddy ◽  
K. Srinivasa Rao
Keyword(s):  
Corrosion Resistance ◽  
Electron Beam ◽  
Friction Stir Welding ◽  
Arc Welding ◽  
Electron Beam Welding ◽  
Gas Tungsten Arc Welding ◽  
Fusion Welding ◽  
Friction Stir ◽  
Gas Tungsten Arc ◽  
Gas Tungsten

In this work, it was intended to improve the corrosion resistance of welds of A356 and AA6061 by adopting mainly a special welding techniques, viz., pulsed current gas tungsten arc welding (PCGTAW), electron beam welding (EBW) and friction stir welding (FSW). It was found that the corrosion resistance of A356 and AA6061 welds could be improved by PCGTAW technique rather than continuous current gas tungsten arc welding (CCGTAW). It can be further improved by using electron beam welding. Improved corrosion resistance in A356 welds could be obtained by selecting T6 temper rather than as cast condition. In the case of AA6061, improved corrosion resistance was achieved by selecting T4 temper rather than T6 temper. As for as the welding techniques, friction stir welding (FSW) is useful than fusion welding techniques like CCGTAW,PCGTAW and EBW for improving the corrosion resistance of both the welds.

scholarly journals Mechanical Properties and Corrosion Resistance of Al–Mg Alloys with Cu Added by Electron Beam Welding

1999 ◽  
Vol 40 (6) ◽  
pp. 556-563 ◽  
Author(s):  
Yoshinori Sakamoto ◽  
Chiaki Shibuta ◽  
Sumiko Sanuki ◽  
Takehiko Mae ◽  
Hisakimi Notoya ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Electron Beam ◽  
Electron Beam Welding ◽  
Mg Alloys ◽  
Mechanical Properties And Corrosion

THE STRUCTURE AND COEFFICIENT OF FRICTION OF WELDED NICKEL ALLOYS INCONEL 625 AND INCONEL 718

Tribologia ◽  
2018 ◽  
Vol 281 (5) ◽  
pp. 109-115
Author(s):  
Katarzyna STRZELCZAK ◽  
Agata DUDEK
Keyword(s):  
Heat Treatment ◽  
Electron Beam ◽  
Coefficient Of Friction ◽  
Inconel 718 ◽  
Nickel Alloys ◽  
Precipitation Hardening ◽  
Electron Beam Welding ◽  
Stress Gradient ◽  
Test Method ◽  
Inconel 625

In this study, the coefficients of friction for three series of welded nickel alloy joints, subjected to different heat treatments (lack of heat treatment, solution heat treatment, precipitation hardening), were determined. Heat treatment of the prepared samples was aimed at eliminating the structural and stress gradient, because the electron beam welding technique is dedicated for constructions with very high quality and strength requirements. Given the nature of the electron beam process, the authors are aware that the obtained weld’s structures are characterized by different properties from parent materials, and also from structures melted under equilibrium conditions. The scientific aim of the presented work is to determine the influence of heat treatment on the microstructure, mechanical properties, and performance of dissimilar joints of nickel alloys Inconel 625 and Inconel 718. In order to determine the coefficient of friction for samples, the scratch test method was used. As a result of the research, it was proved that subjecting the welds to the precipitation hardening has a significant effect on abrasion resistance.

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