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 …

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 …

[HTML][HTML] Structure and phase transformations in gas atomized AlCoCrFeNi high entropy alloy powders

D Karlsson, P Beran, L Riekehr, JC Tseng… - Journal of Alloys and …, 2022 - Elsevier
In this study, the crystal structure and phase stability of gas atomized equiatomic
AlCoCrFeNi powder was investigated. This alloy is usually described as a high entropy alloy …

Influence of sigma phase on corrosion and mechanical properties of 2707 hyper-duplex stainless steel aged for short periods

J Wang, W Chen, H Meng, Y Cui, C Zhang… - Journal of Iron and Steel …, 2019 - Springer
Abstract 2707 hyper-duplex stainless steels (HDSSs) contain high contents of alloying
elements (Cr, Ni, Mo and N), which may shorten the incubation period and promote both …

Integranular corrosion susceptibility analysis in austeno‐ferritic (duplex) stainless steels

F Iacoviello, V Di Cocco… - Fatigue & Fracture of …, 2018 - Wiley Online Library
Duplex stainless steels (DSSs) are characterized by a really good generalized corrosion
resistance in many environments and by really interesting mechanical properties …

Evaluation of the of isothermal phases transformations and hardness measurements in SAF 2507 super duplex using Pulsed Eddy Currents

YTB Santos, JCS Queiroz, LAP Cavalcanti, CTT Farias… - 2023 - researchsquare.com
Super duplex stainless steel (SDSS) is utilized in various industries, including offshore,
chemical, petrochemical, and pulp and paper. Exposure to certain temperatures can cause …

A nitrogén szerepe a duplex korrózióálló acélok hegesztésekor

B Varbai - 2020 - search.proquest.com
Alulírott, Varbai Balázs, a Budapesti Műszaki és Gazdaságtudományi Egyetem hallgatója,
büntetőjogi és fegyelmi felelősségem tudatában kijelentem és sajátkezű aláírásommal …

The effect of surface preparation on surface damage and sigma formation in duplex stainless steel

RL Higginson, M Cenci, M Rowlett… - Materials Science …, 2019 - Trans Tech Publ
Sigma formation in duplex stainless steels is known to be detrimental to the mechanical
properties of the material and limits the alloys to low temperature applications. In this paper …