2021年9月1日 · Duplex stainless steel (DSS) is composed of ferrite (α) and austenite (γ) and exhibits a combination of good mechanical and corrosion properties. DSS components with complex shape (e.g., impeller blades) are widely used in …

2024年6月1日 · Flat duplex stainless steel acquires its characteristic banded microstructure during its processing sequence, which ends with a final annealing step aimed at fine tuning the phase ratio to equal parts ferrite and austenite. Besides phase fraction, the grain structures, shapes and morphologies of both phases evolve too during this final step.

This microstructure shows a duplex structure consisting of dendritic Table 1 Chemical composition (wt%) and M d30 (1C) temperature of Ti-modified 201L stainless steel. austenite and...

2022年6月15日 · Elastoplastic deformation and damage process in duplex stainless steels studied using synchrotron and neutron diffractions in comparison with a self-consistent model

5 天之前 · This paper presents an experimental and modeling study to investigate and predict the microstructure evolution for single-phase austenite and ferrite steels with the chemistry of the corresponding phases in a duplex stainless steel SUS329J4L under hot forming conditions. For steels with the compositions corresponding to both austenite and ferrite phases, single-pass hot uniaxial compression ...

The balanced duplex ratio in the microstructure of 2205 duplex stainless steel deter- mines its superior yield strength, chloride stress corrosion resistance, and welding ability that can be used in the shipbuilding and pressure vessel industry [1,2].

2024年6月16日 · Duplex stainless steels (DSS) had good wear and corrosion resistance, making them potential substitutes instead of martensitic stainless steel as the material for water turbine blades. However, designing a DSS with high wear and corrosion resistance using traditional trial-and-error methods required a significant amount of time and cost.

A new form of duplex steel that provides pitting resistance numbers higher than 45 is hyper-duplex stainless steel (HDSS). ... Microstructure and Mechanical Properties of SLM Printed...

Duplex stainless steels are widely used in offshore oil and gas, maritime, process, and nuclear industries as they deliver high corrosion resistance, toughness, and ductility, but they are sensitive to formation of brittle microstructures during additive manufacturing.

2024年11月9日 · The effects of different microstructure components on the relative permeability of duplex stainless steel (grain size, phase fraction, and phase distribution) were discussed. The output inductance of an electromagnetic sensor was determined by relative permeability values and can be validated experimentally.