Evaluating the Hydrogen Embrittlement Susceptibility of Aged 2205 Duplex Stainless Steel Containing Brittle Sigma Phase

2021 ◽  
Author(s):  
Loyslene Rabelo Fernandes ◽  
Lisa Claeys ◽  
Margot Pinson ◽  
Tom Depover ◽  
Dagoberto Brandão Santos ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Hydrogen Embrittlement ◽  
Duplex Stainless Steel ◽  
Sigma Phase ◽  
2205 Duplex Stainless Steel

scholarly journals Induced Magnetic Field Used to Detect the Sigma Phase of a 2205 Duplex Stainless Steel

2016 ◽  
Vol 35 (2) ◽  
Author(s):  
Edgard de Macedo Silva ◽  
Josinaldo Pereira Leite ◽  
João Pereira Leite ◽  
Walter Macedo Lins Fialho ◽  
Victor Hugo C. de Albuquerque ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Stainless Steel ◽  
Duplex Stainless Steel ◽  
Sigma Phase ◽  
Induced Magnetic Field ◽  
2205 Duplex Stainless Steel

scholarly journals Quantification of sigma-phase evolution in thermally aged 2205 duplex stainless steel

2015 ◽  
Vol 51 (2) ◽  
pp. 694-707 ◽  
Author(s):  
A. D. Warren ◽  
R. L. Harniman ◽  
Z. Guo ◽  
C. M. Younes ◽  
P. E. J. Flewitt ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Duplex Stainless Steel ◽  
Sigma Phase ◽  
Phase Evolution ◽  
2205 Duplex Stainless Steel

scholarly journals The Difference of Corrosion Behavior in Initial Period for the Hot-Rolled and Cold-Rolled 2205 Duplex Stainless Steel

2018 ◽  
Author(s):  
Tao Gao ◽  
Jian Wang ◽  
Qi Sun ◽  
Peide Han
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Duplex Stainless Steel ◽  
Sigma Phase ◽  
Aging Treatment ◽  
Rolled Material ◽  
2205 Duplex Stainless Steel ◽  
Cold Rolled ◽  
The Difference ◽  
Hot Rolled

The precipitate phases often play an important influence on the corrosion resistance of 2205 Duplex stainless steel (DSS). In the presented paper, the microstructure and corrosion resistance in the hot-rolled and cold-rolled 2205 DSS aging for different time at 850 °C was investigated by XRD, SEM and potentiodynamic polarization. It has been found that the Chi(χ) phase and Sigm(σ) phase were precipitated in turn after aging treatment of hot-rolled and cold-rolled materials, but the precipitate amount in cold-rolled material is much more than that of hot-rolled samples. The corrosion resistance of the solution-annealed cold-rolled material is similar to the hot-rolled material, but the corrosion resistance of cold-rolled material with precipitate is weaker than that of hot-rolled material after aging treatment. Pitting initiates preferentially in the Cr-depleted region from σ phase in aged hot-rolled 2205, and severe selective corrosion occurs on sigma/ferrite interfaces aged for a long aged lime. However, the initiation of pitting corrosion may take place at the phase boundary, defect and martensite in the aged cold-rolled 2205. The σ phase is further selectively dissolved by electrochemical method to investigate the difference of microstructure and corrosion behavior in hot-rolled and cold-rolled 2205 duplex stainless steel.

scholarly journals Effect of Cooling Rate on the Corrosion Behavior of As-Cast SAF 2205 Duplex Stainless Steel after Solution Annealing Treatment

2016 ◽  
Vol 869 ◽  
pp. 620-624
Author(s):  
Maria Eurenice Rocha Cronemberger ◽  
Sandra Nakamatsu ◽  
Neide Aparecida Mariano ◽  
Carlos Alberto della Rovere ◽  
Sebastião Elias Kuri
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Duplex Stainless Steel ◽  
Sigma Phase ◽  
Annealing Treatment ◽  
Solution Annealing ◽  
2205 Duplex Stainless Steel ◽  
The Matrix ◽  
Electrochemical Potentiokinetic Reactivation ◽  
Saf 2205

The formation of intermetallic phases alters the properties of duplex stainless steel and is therefore a crucial factor in its performance. For example, the formation of sigma phase in duplex steel increases its brittleness and decreases its corrosion resistance because this phase consumes chromium and molybdenum in solid solution, thus leading to the depletion of these elements in the matrix. This study investigated the corrosion resistance of as-cast SAF 2205 duplex stainless steel after solution annealing treatment at 1100 °C for 240 minutes, under varying cooling rates. The objective was to evaluate the correlation between cooling condition, microstructural changes and corrosion resistance based on cyclic potentiodynamic polarization tests and double loop electrochemical potentiokinetic reactivation (DL-EPR) measurements. The results revealed a significant reduction in the corrosion resistance of a slowly cooled sample, which presented an increase in the degree of Cr (Qr / Qa) depletion resulting from the formation of sigma phase.

Microtexture evolution of sigma phase in an aged fine-grained 2205 duplex stainless steel

2021 ◽  
Vol 171 ◽  
pp. 110802
Author(s):  
Lóren Kelly de Paula Inácio ◽  
Witor Wolf ◽  
Bruna Castro Barsand de Leucas ◽  
Guilherme Cardeal Stumpf ◽  
Dagoberto Brandão Santos
Keyword(s):  
Stainless Steel ◽  
Duplex Stainless Steel ◽  
Sigma Phase ◽  
2205 Duplex Stainless Steel ◽  
Fine Grained

scholarly journals Analysis of enhanced hydrogen embrittlement fracture for pre-strain hardening 2205 duplex stainless steel

2020 ◽  
Vol 16 ◽  
pp. 102820 ◽  
Author(s):  
Ping Tao ◽  
Fei Ye ◽  
Weiwei Cen ◽  
Jiaxi Zhao ◽  
Yanfei Wang ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Hydrogen Embrittlement ◽  
Duplex Stainless Steel ◽  
Strain Hardening ◽  
2205 Duplex Stainless Steel

Hydrogen Embrittlement of SAF 2205 Duplex Stainless Steel

CORROSION ◽  
2002 ◽  
Vol 58 (10) ◽  
pp. 858-862 ◽  
Author(s):  
J. W. Hsu ◽  
S. Y. Tsai ◽  
H. C. Shih
Keyword(s):  
Stainless Steel ◽  
Hydrogen Embrittlement ◽  
Duplex Stainless Steel ◽  
2205 Duplex Stainless Steel ◽  
Saf 2205
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