Effect of secondary phase precipitation on the corrosion behavior of duplex stainless steels

KW Chan, SC Tjong - Materials, 2014 - mdpi.com
Duplex stainless steels (DSSs) with austenitic and ferritic phases have been increasingly
used for many industrial applications due to their good mechanical properties and corrosion …

Non-destructive techniques for the detection of sigma phase in duplex stainless steel: a comprehensive review

MV Biezma, U Martin, P Linhardt, J Ress… - Engineering Failure …, 2021 - Elsevier
Sigma phase is a deleterious phase which can be formed in duplex stainless steels (DSSs)
during heat treatment, manufacturing, or welding processes, leading to a decrease of …

Identification of sigma and chi phases in duplex stainless steels

N Llorca-Isern, H López-Luque, I López-Jiménez… - Materials …, 2016 - Elsevier
The aim of this work is to find out the most suitable method for detecting and analyzing
accurately the formation conditions of secondary phases, particularly Sigma-phase (σ …

Evaluation of the effect of grain size on chromium carbide precipitation and intergranular corrosion of 316L stainless steel

SX Li, YN He, SR Yu, PY Zhang - Corrosion Science, 2013 - Elsevier
The effect of grain size on chromium carbide precipitation and sensitization of 316L stainless
steel was investigated based on inspection of microstructures and electrochemical …

An electrochemical study on the effect of stabilization and sensitization heat treatments on the intergranular corrosion behaviour of AISI 321H austenitic stainless steel

K Morshed-Behbahani, P Najafisayar, M Pakshir… - Corrosion …, 2018 - Elsevier
The intergranular corrosion behavior of AISI 321H stainless steel was investigated using
oxalic acid etching, double-loop electrochemical potentiokinetic reactivation, anodic …

Kinetic study to predict sigma phase formation in duplex stainless steels

DC Dos Santos, R Magnabosco - Metallurgical and Materials Transactions …, 2016 - Springer
This work presents an improved kinetic study of sigma phase formation during isothermal
aging between 973 K and 1223 K (700° C and 950° C), based on Kolmogorov-Johnson …

Effect of sigma phase morphology on the degradation of properties in a super duplex stainless steel

VA Hosseini, L Karlsson, S Wessman, N Fuertes - Materials, 2018 - mdpi.com
Sigma phase is commonly considered to be the most deleterious secondary phase
precipitating in duplex stainless steels, as it results in an extreme reduction of corrosion …

Detection of susceptibility to intergranular corrosion of aged super austenitic stainless steel S32654 by a modified electrochemical potentiokinetic reactivation method

S Zhang, Z Jiang, H Li, H Feng, B Zhang - Journal of Alloys and …, 2017 - Elsevier
The double loop electrochemical potentiokinetic reactivation method was modified and
applied to detect the susceptibility to intergranular corrosion of super austenitic stainless …

Dissimilar welding behavior of 22% Cr series stainless steel with 316L and its corrosion resistance in modified aggressive environment

J Verma, RV Taiwade - Journal of Manufacturing Processes, 2016 - Elsevier
Superior sustainability in highly aggressive environment makes duplex stainless steels as a
futuristic materials and better replacement of austenitic grade, which reflects an inevitability …

[HTML][HTML] In-situ study of σ phase evolution in 25Cr-7Ni duplex stainless steel (DSS): unrevealing critical insight

RN Hajra, BJ Han, JW Park, WH Kim, J Lee, WS Ko… - Materials & Design, 2024 - Elsevier
The current understanding of the formation mechanism and kinetics of the σ phase in DSS
remains ambiguous. This study investigates the in-situ evolution of the σ phase in DSS …