Processes of precipitation and intercrystalline corrosion in high-nitrogen Cr-Mn steels after isothermal annealing

Rashev, Ts.; Dzhambazova, L. P.; Kovacheva, R.; Andreev, Ch.

doi:10.1007/bf00700539

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Alloy Design Principles Of Nickel Free High Nitrogen Austeni1

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1988

2024

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Cited by 5 publications

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“…This is true in a Fe-Ni-Cr equilibria. The lowest Ni content (ϳ8%) to make a fully austenitic stainless steel was found to be for 18% Cr content, 27) which is validated in the Schaffler's diagram as well. This trend observed in the Fe-Cr-Ni system need not be true for Fe-Cr-Mn-N equilibria as well.…”

Section: Alloy Design Principles Of Nickel Free High Nitrogen Austenimentioning

confidence: 77%

Some Theoretical Aspects on Designing Nickel Free High Nitrogen Austenitic Stainless Steels.

et al. 2001

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Section: Alloy Design Principles Of Nickel Free High Nitrogen Austenimentioning

confidence: 77%

Some Theoretical Aspects on Designing Nickel Free High Nitrogen Austenitic Stainless Steels.

et al. 2001

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Hot cracking in duplex stainless steel weldments — a review

Westin

2022

Weld World

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Evaluation of methods used for simulation of heat-affected zones in duplex stainless steels

Westin,

Westerberg

2024

Weld World

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The weldability of duplex stainless steels partly depends on the ferritization of the high-temperature heat-affected zone (HT-HAZ). This area is rather narrow, and it can be challenging to visualize and determine its actual impact on the properties. To address this, various methods were applied to study the grain growth and austenite reformation in the HT-HAZ of the lean duplex grade UNS S32101. Thermo-mechanical Gleeble® simulations were conducted at 1360 °C with different holding times and cooling rates. Subsequently, the grain size and ferrite content were measured on polished and etched cross-sections. Bead-on-plate welds were performed on the same heat of 6-mm plate thickness using the gas tungsten arc welding (GTAW) process. The shielding gas was Ar + 0–8% N2 to illustrate the effect of nitrogen additions on the HT-HAZ morphology. The arc was either stationary, welding at one spot for 0.5–120 s, or travelling at different speeds to generate varying heat inputs and temperature gradients. The thermo-mechanical simulations approximated the results obtained by travelling arc welding and allowed for a more comprehensive investigation. Stationary arc welding was not suitable for HT-HAZ studies as it quickly caused nitrogen depletion and resulted in significantly higher ferrite contents compared to the travelling arc welds.

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Processes of precipitation and intercrystalline corrosion in high-nitrogen Cr-Mn steels after isothermal annealing

Cited by 5 publications

References 1 publication

Some Theoretical Aspects on Designing Nickel Free High Nitrogen Austenitic Stainless Steels.

Some Theoretical Aspects on Designing Nickel Free High Nitrogen Austenitic Stainless Steels.

Hot cracking in duplex stainless steel weldments — a review

Evaluation of methods used for simulation of heat-affected zones in duplex stainless steels

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