Effect of residual stresses on individual phase mechanical properties of austeno-ferritic duplex stainless steel

2006 ◽  
Vol 54 (19) ◽  
pp. 5027-5039 ◽  
Author(s):  
R. Dakhlaoui ◽  
A. Baczmański ◽  
C. Braham ◽  
S. Wroński ◽  
K. Wierzbanowski ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Residual Stresses ◽  
Duplex Stainless Steel ◽  
Individual Phase

scholarly journals Three-Dimensional (3D) Microstructure-Based Modeling of a Thermally-Aged Cast Duplex Stainless Steel Based on X-ray Microtomography, Nanoindentation and Micropillar Compression

Metals ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 688
Author(s):  
Qingdong Zhang ◽  
Kai Zhu ◽  
Arun Sundar S. Singaravelu ◽  
Weizhao Sun ◽  
Tao Jing ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Duplex Stainless Steel ◽  
Three Dimensional ◽  
Compression Tests ◽  
Element Analysis ◽  
X Ray ◽  
3D Microstructure ◽  
Individual Phase ◽  
Micropillar Compression

Finite element analysis was conducted on a thermally-aged cast duplex stainless steel based on the true three-dimensional (3D) microstructure obtained from X-ray microtomography experiments and using the constitutive behavior of each individual phase extracted from nanoindentation on single-crystal and bicrystal micropillar compression tests. The evolution of the phase morphology, the mechanical properties and the boundary deformation behavior during the aging process are highlighted. Quantitative analysis in terms of the distribution and evolution of the stress and strain in both the as received and aged conditions was performed. The experimental results show that aging at an intermediate temperature has a negligible influence on the morphology of the two phases in cast duplex stainless steel (CDSS). Results from simulations reveal that the mechanical behavior of this material were seriously affected by the microstructure and the mechanical properties of the individual phase and the necking deformation tend to form in the area with less large ferrite grains after aging. In addition, stress localization tends to form at the austenite/ferrite interface, in the narrow region of ferrite grains and in the small ferrite grains.

scholarly journals Microstructure and mechanical properties of friction stir welded 8 mm pipe SAF 2507 super duplex stainless steel

2019 ◽  
Vol 8 (1) ◽  
pp. 243-249 ◽  
Author(s):  
Rafael Arthur Reghine Giorjão ◽  
Victor Ferrinho Pereira ◽  
Maysa Terada ◽  
Eduardo Bertoni da Fonseca ◽  
Ricardo Reppold Marinho ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Duplex Stainless Steel ◽  
Super Duplex Stainless Steel ◽  
Friction Stir ◽  
Microstructure And Mechanical Properties
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