• Aucun résultat trouvé

Effect of heat input variation on microstructureand mechanical behavior of SMAW welded superduplex joints

N/A
N/A
Info
Télécharger
Protected

Academic year: 2021

Partager "Effect of heat input variation on microstructureand mechanical behavior of SMAW welded superduplex joints"

Copied!
1
0
0

Chargement.... (Voir le texte intégral maintenant)

Texte intégral

(1)

8th INTERNATIONAL CONFERENCE ON ADVANCED COMPUTATIONAL ENGINEERING AND EXPERIMENTACEX 2014

2014

Effect of heat input variation on microstructure and mechanical behavior of SMAW welded super

duplex joints

M.F. Benlamnouar, R. Badji, M. Hadji, A. Boutaghane, M. Temmar

Abstract : In the present study, the effect of heat input variation on microstructure and mechanical behavior of SAF 2507 super duplex stainless steel welded using 308L filler metal is investigated. A duplex austenitic-ferritic microstructure is observed in the weld metal whereas some ferrite grain growth is recorded in the heat affected zone (HAZ). Increasing heat input from 1.19 to 2.42 KJ/mm causes a decrease in ferrite amount in the WM and a slight grain growth in the HAZ. A change in the ferrite grain morphology from acicular to circular is also observed in the WM. A better combination of the mechanical properties and microstructual features is obtained for a heat input of 2.42 KJ/mm.

Keywords : super duplex stainless steel, heat input, SMAW, alloying elements

Centre de Recherche en Technologies Industrielles - CRTI - www.crti.dz

Powered by TCPDF (www.tcpdf.org)

Références

Télécharger maintenant ( PDF - 1 Page - 7.74 KB )

Documents relatifs

Effect of root pass filler metal on microstructure and mechanical properties in the multi-pass welding of duplex stainless steels

The microstructure indicates the presence of austenite in different forms on the weld zone of ER2209, same in the case of ER 2594, but with higher content and finer grains size,

Microstructure and mechanical behavior indissimilar 13Cr/2205stainless steel welded pipes

The fatigue tests conducted on dissimilar weldedspecimens led us to conclude that the weld metal is considered as a weak link of the weld joint in the high cyclefatigue regime. This

Microstructure and mechanical behavior of TIGbimetallic joints

The mechanical behavior is investigated through microhardness, charpy impact and tensile test.The results show that, the weld metal composition has a great influence on

Influence of heat input on microstructure andmechanical properties of Ferritic Stainless Steelwelds

These steels are characterized by good resistance to stress corrosion cracking (SCC), pitting corrosion, crevice corrosion (particularly in chloride environments), higher

Influence of heat input on microstructure and mechanical properties of Ferritic Stainless Steel welds

These steels are characterized by good resistance to stress corrosion cracking (SCC), pitting corrosion, crevice corrosion (particularly in chloride environments),

Effect of postweld heat treatment onmicrostructure and mechanical properties ofwelded 2205 duplex stainless steel

Abstract: Duplex stainless steels 2205 are widely used in constructional and petrochemical applications because of their good mechanical and corrosion properties. The objective of

Effect of postweldheat treatment on microstructure andmechanical properties of welded 2205 duplex stainless steel

Duplex stainless steels 2205 are widely used in constructional and petrochemical applications because of their good mechanical and corrosion properties. The objective of

Ageing Behavior and Restoration by Heat Treatments of 2205 Duplex Stainless Steel

After aging treatments, all samples were annealed at 1080°C for 60 min and quenched in water; this treatment led to a complete dissolution of sigma phase and