Effect of welding process type on mechanical and corrosion properties of SUS329J4L duplex stainless steel

2014 ◽  
Vol 8 (3) ◽  
pp. 189-203 ◽  
Author(s):  
Abdel-Monem El-Batahgy ◽  
Akihiko Tsuboi
Keyword(s):  
Stainless Steel ◽  
Duplex Stainless Steel ◽  
Welding Process ◽  
Corrosion Properties ◽  
Mechanical And Corrosion Properties

Effect of post-weld heat treatment on microstructure and corrosion properties of multi-layer super duplex stainless steel welds

2021 ◽  
Vol 63 (9) ◽  
pp. 791-796
Author(s):  
Lei Tian ◽  
Zhanqi Gao ◽  
Yongdian Han
Keyword(s):  
Heat Treatment ◽  
Stainless Steel ◽  
Duplex Stainless Steel ◽  
Welded Joints ◽  
Post Weld Heat Treatment ◽  
Super Duplex Stainless Steel ◽  
Corrosion Properties ◽  
Austenite Content ◽  
Mechanical And Corrosion Properties ◽  
Weld Heat

Abstract To investigate the influence of post-weld heat treatment on the microstructure and corrosion properties of super duplex stainless steel welded joints, multi-layer multi-pass welding of 2507 super duplex stainless steel by tungsten argon arc welding was performed using an ER2594 welding wire. The microstructures of the welded joints before and after post-weld heat treatment at 1150 °C, 1170 °C and 1190 °C were observed, and the mechanical and corrosion properties were tested. The post-weld heat treatment changed the austenite content and morphology of the welded joint and improved the corrosion resistance of different parts of the weld metal. The choice of various solution heat treatment temperatures affected the change in austenite content in the weld zone and the degree of diffusion and homogenization of the alloy elements. After post-weld heat treatment at 1170 °C, the two-phase ratios in each area of the weld were the most suitable and uniform, and the overall mechanical and corrosion properties of the joint were more uniform.

Effect of Post Weld Heat Treatment on Microstructure and Mechanical Properties of Welded 2205 Duplex Stainless Steel

2004 ◽  
Vol 467-470 ◽  
pp. 217-222 ◽  
Author(s):  
R. Badji ◽  
B. Belkessa ◽  
H. Maza ◽  
M. Bouabdallah ◽  
Brigitte Bacroix ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Duplex Stainless Steel ◽  
Stainless Steels ◽  
Post Weld Heat Treatment ◽  
Corrosion Properties ◽  
X Ray ◽  
Welded Structure ◽  
Mechanical And Corrosion Properties ◽  
Ray Methods

Duplex stainless steels 2205 are widely used in constructional and petrochemical applications because of their good mechanical and corrosion properties. The objective of this work was to study the influence of aging at high temperature on the austenite and d ferrite equilibrium. After welding by TIG process, duplex stainless steel was aged in the range of 800 – 1150 °C temperatures for 60 min. The microstructure was characterized by metallography and X-ray methods. The toughness of welded structure was also measured.

Mechanical and Corrosion Properties of Martensite/Ferrite Duplex Stainless Steel Prepared via Laser Cladding

2018 ◽  
Vol 45 (12) ◽  
pp. 1202012
Author(s):  
朱红梅 Zhu Hongmei ◽  
李勇作 Li Yongzuo ◽  
张振远 Zhang Zhenyuan ◽  
何彬 He Bin ◽  
邱长军 Qiu Changjun
Keyword(s):  
Stainless Steel ◽  
Duplex Stainless Steel ◽  
Laser Cladding ◽  
Corrosion Properties ◽  
Mechanical And Corrosion Properties

scholarly journals Influence of Different Soaking Times at 1050 °C on the UT Response Due to Microstructure Evolution of 2205 Duplex Stainless Steel

Metals ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 503
Author(s):  
Andrea Gruttadauria ◽  
Silvia Barella ◽  
Carlo Mapelli ◽  
Davide Mombelli
Keyword(s):  
Stainless Steel ◽  
Thermal Treatment ◽  
Duplex Stainless Steel ◽  
Energy Absorption ◽  
Microstructure Evolution ◽  
Wave Scattering ◽  
Volume Fraction ◽  
Thermal Treatments ◽  
Corrosion Properties ◽  
Mechanical And Corrosion Properties

Under standard conditions, DSS (duplex stainless steel) features differing amounts of ferrite and austenite, essentially depending on the thermal treatment performed. This study is focused on the ultrasonic tests (UTs) response of DSS 2205, as a function of the microstructure, in terms of austenite volume fraction and austenitic grains evolution owing to different soaking times at 1050 °C. UTs were carried out on several samples. The samples underwent varying thermal treatments characterized by a constant maintenance temperature with different soaking times that allowed for microstructure evolution and modification of the structural constituents’ fraction. The UTs have highlighted an attenuation trend with the response mainly dependent upon the wave scattering and energy absorption caused by the grain features. In particular, the peak of sound attenuation was shown to correspond with the microstructure, which featured a major amount of austenite (in terms of volume fraction and the grain dimensions) and the disappearance of austenitic precipitates within the ferritic matrix. In order to obtain less UT attenuation, without affecting the mechanical and corrosion properties, the soaking should last as little time as possible.

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