Influence of chemical composition and residual stresses on mechanical properties of duplex stainless steel studied by X-ray and neutron diffraction

2007 ◽  
Vol 15 (2) ◽  
pp. 131-137 ◽  
Author(s):  
R. Dakhlaoui ◽  
C. Braham ◽  
A. Baczmanski
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Chemical Composition ◽  
Neutron Diffraction ◽  
Residual Stresses ◽  
Duplex Stainless Steel ◽  
X Ray

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.

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 X-Ray diffraction technique applied to study of residual stresses after welding of duplex stainless steel plates

2014 ◽  
Vol 17 (suppl 1) ◽  
pp. 64-69 ◽  
Author(s):  
Vladimir Ivanovitch Monin ◽  
Ricardo Tadeu Lopes ◽  
Sergio Nolêto Turibus ◽  
João C. Payão Filho ◽  
Joaquim Teixeira de Assis
Keyword(s):  
Stainless Steel ◽  
Residual Stresses ◽  
Duplex Stainless Steel ◽  
Steel Plates ◽  
X Ray Diffraction ◽  
X Ray

INFLUENCE OF ANNEALING ON THE DEPTH MICROSTRUCTURE OF THE SHOT PEENED DUPLEX STAINLESS STEEL AT ELEVATED TEMPERATURE

2018 ◽  
Vol 25 (02) ◽  
pp. 1850059
Author(s):  
QIANG FENG ◽  
JIA SHE ◽  
YONG XIANG ◽  
XIANYUN WU ◽  
CHENGXI WANG ◽  
...  
Keyword(s):  
Residual Stress ◽  
Stainless Steel ◽  
Thermal Expansion ◽  
Elevated Temperature ◽  
Residual Stresses ◽  
Duplex Stainless Steel ◽  
Coefficient Of Thermal Expansion ◽  
Lattice Parameters ◽  
X Ray Diffraction ◽  
X Ray

The depth profiles of residual stresses and lattice parameters in the surface layers of shot peened duplex stainless steel at elevated temperature were investigated utilizing X-ray diffraction analysis. At each deformation depth, residual stress distributions in both ferrite and austenite were studied by X-ray diffraction stress analysis which is performed on the basis of the sin[Formula: see text] method and the lattice parameters were explored by Rietveld method. The results reveal that difference changes of depth residual compressive stress profiles between ferrite and austenite under the same annealing condition are resulted from the diverse coefficient of thermal expansion, dislocation density, etc. for different phases in duplex stainless steel. The relaxations of depth residual stresses in austenite are more obvious than those in ferrite. The lattice parameters decrease in the surface layer with the extending of annealing time, however, they increase along the depth after annealing for 16[Formula: see text]min. The change of the depth lattice parameters can be ascribed to both thermal expansion and the relaxation of residual stress. The different changes of microstructure at elevated temperature between ferrite and austenite are discussed.

VHCF damage in duplex stainless steel revealed by microbeam energy-dispersive X-ray Laue diffraction

2021 ◽  
pp. 106358
Author(s):  
Ali Abboud ◽  
Ali AlHassan ◽  
Benjamin Dönges ◽  
Jean Sebastian Micha ◽  
Robert Hartmann ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Duplex Stainless Steel ◽  
Energy Dispersive ◽  
Laue Diffraction ◽  
X Ray
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