Effects of compositional modifications on the sensitization behavior of FeCrMn steels

Edgemon, Glenn L.; Tortorelli, P.F.; Bell, Graham

doi:10.1016/0022-3115(92)90624-t

Cited by 2 publications

(1 citation statement)

References 7 publications

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“…100 Similar results have been reported by other investigators. 101,102 These authors have established that Fe-Mn-Cr steels (Fe-0 . 25C-20Mn-12Cr) are extremely susceptible compared to Fe-Cr-Ni alloys and in these alloys, alloy addition that forms stable carbides does not have a very significant influence on sensitisation behaviour.…”

Section: Influence Of Chemical Compositionmentioning

confidence: 99%

Influence of metallurgical variables on sensitisation kinetics in austenitic stainless steels

Dayal¹,

Parvathavarthini²,

Raj³

2005

International Materials Reviews

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Austenitic stainless steels are the most favoured construction materials for various components required in chemical, petrochemical, fertiliser and nuclear industries. However, these steels are prone to sensitisation. In the sensitised condition, the steels are quite susceptible to intergranular corrosion and intergranular stress corrosion cracking in chloride and caustic environments resulting in the premature failure of the fabricated components during precommissioning and service periods. The topic of sensitisation has been of interest in studies worldwide. The studies included mechanism of sensitisation, test methods, data generation, and influence of several variables and protection methods. This article covers a review of important contributions to this topic with special emphasis on the influence of metallurgical variables. The present state of understanding is discussed in the following areas: mechanisms, test methods, sensitisation diagrams, influence of chemical composition, cold work and grain size, low temperature sensitisation, modelling and laser surface treatment. The need for further investigation in certain areas is highlighted.

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Section: Influence Of Chemical Compositionmentioning

confidence: 99%

Influence of metallurgical variables on sensitisation kinetics in austenitic stainless steels

Dayal¹,

Parvathavarthini²,

Raj³

2005

International Materials Reviews

View full text Add to dashboard Cite

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The effect of thermomechanical treatment on the microstructure and mechanical properties of high Mn–Cr austenitic steels

Soltani

Asadabad²,

Naderi

2019

International Journal of Materials Research

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It was shown that new high-manganese austenitic steels can be used as an alternative to conventional Ni–Cr austenitic steels especially in vacuum vessels. In this study, a nickel-free austenitic steel with chemical composition of 24 wt.% Mn, 10 wt.% Cr, 0.13 wt.% C and trace elements of Si, Ti, V, W, and Al was hot-rolled at 950 and 1100 °C to different strains. Microscopic observations, X-ray diffraction, tensile, impact and microhardness tests were performed to characterize the microstructural aspects and mechanical properties. A small amount of chromium carbide was found on the grain boundaries of this fully austenitic steel. The results showed that the microstructure and mechanical properties of hot rolled manganese austenitic steel are affected by the dynamic recrystallization and twinning phenomena. Also, by changing the grain morphology from equiaxed to elongated, strength and hardness increased, and the impact toughness and ductility were reduced.

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Effects of compositional modifications on the sensitization behavior of FeCrMn steels

Cited by 2 publications

References 7 publications

Influence of metallurgical variables on sensitisation kinetics in austenitic stainless steels

Influence of metallurgical variables on sensitisation kinetics in austenitic stainless steels

The effect of thermomechanical treatment on the microstructure and mechanical properties of high Mn–Cr austenitic steels

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