Influence of sodium on the creep-rupture behaviour of Type 304 stainless steel

Borgstedt, H.U.; Huthmann, H.

doi:10.1016/0022-3115(91)90480-u

Cited by 27 publications

(4 citation statements)

References 2 publications

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“…These tests, although extremely demanding due to the long-term pre-exposure required, were not carried out in a liquid sodium environment, as already mentioned, and were only targeting the detrimental effects on steel's microstructure of long term high temperature liquid sodium exposure. On the other hand, while the effect of sodium on 304 steel fatigue crack behavior was shown to be negligible at 823 K [8], intergranular cracking of the 304 austenitic steel was also observed during tertiary creep in sodium at the same temperature [9]. Similar behavior was also reported in sodium contaminated by sodium hydroxide [10].…”

Section: Introductionsupporting

confidence: 60%

Investigation of crack propagation resistance of 304L, 316L and 316L(N) austenitic steels in liquid sodium

Barkia

Courouau

Perrin

et al. 2018

Journal of Nuclear Materials

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The fracture behavior of 3 austenitic steels has been tested in liquid sodium on notched tensile specimens after pre-wetting in oxygenated sodium (200 wppm). Austenitic steels are shown to have decreasing crack propagation resistance in liquid oxygenated sodium for some experimental conditions. Crack initiation occurs after significant plastic deformation. Evidences of brittle fracture are observed on the fracture surface. The effect of impurities on LME susceptibility is estimated to be unlikely.

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Section: Introductionsupporting

confidence: 60%

Investigation of crack propagation resistance of 304L, 316L and 316L(N) austenitic steels in liquid sodium

Barkia

Courouau

Perrin

et al. 2018

Journal of Nuclear Materials

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“…AISI 304L steel was found to have an intergranular LME fracture mode in liquid sodium and liquid lithium at lower temperature (between 200°C and 400°C) with moderate to limited mechanical degradation [2,3,4]. Similar intergranular cracking of the 304 austenitic steel was also noticed during tertiary creep in sodium at 550°C [5]. LME is also observed at ambient temperature but with a subset only of the commonly studied austenitic steels in low melting point liquid media such as mercury or gallium [6,7,8].…”

Section: Introductionmentioning

confidence: 97%

Liquid metal embrittlement and deformation induced martensite: The case of 316 L austenitic steel LME by liquid eutectic gallium-indium

et al. 2021

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“…Several countries in the world have carried out experiments in flowing sodium with low carbon concentrations, of less than 5 ppm, to assess the extent of carburization and its consequent changes in mechanical properties. [15][16][17][18][19][20][21][22] The observations and predictions made in the literature cannot be extended to the current study because Indian sodium contains relatively high concentration of carbon of the order of 25 ppm. The authors have already investigated in detail [23] the behavior of primary circuit materials in liquid sodium containing 25 ppm of carbon by employing a monometallic sodium loop made of type 316 stainless steel.…”

Section: Introductionmentioning

confidence: 87%

Evaluation of Microstructural, Mechanical Properties and Corrosion Behavior of AISI Type 316LN Stainless Steel and Modified 9Cr-1Mo Steel Exposed in a Dynamic Bimetallic Sodium Loop at 798 K (525 °C) for 16,000 Hours

Bharasi

Thyagarajan

Shaikh

et al. 2011

Metall Mater Trans A

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Changes occurring in the chemical composition, microstructure, mechanical properties, and carburization behavior of type 316LN stainless steel and modified 9Cr-1Mo steel on exposure to flowing sodium at 798 K (525°C) for 16,000 hours in a bimetallic loop are discussed in this article. Type 316LN stainless steel revealed a degraded layer of approximately 5 lm depth. No significant microstructural changes were observed in the case of modified 9Cr-1Mo steel exposed to sodium. The carburization depth in type 316LN stainless steel was approximately 100 lm and the surface carbon concentration was 0.374 wt pct. In the case of modified 9Cr-1Mo steel, the carbon concentration at the surface was approximately 3.50 wt pct and the depth of carburization was nearly 75 lm. The concentration of nickel and chromium decreased from the bulk to the surface of type 316LN stainless steel, leading to the formation of a ferrite layer. The concentration of these two elements reached the original matrix concentration at around 30 lm. Sodium-exposed material indicated an increase in yield strength by 10 pct and reduction in ductility by 34 pct vis-a`-vis annealed material. No such changes in strength and ductility were observed in the case of modified 9Cr-1Mo steel. A decrease in impact energy was noticed for sodium-exposed type 316LN stainless steel and modified 9Cr-1Mo steel vis-a`-vis as-received material.

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Influence of sodium on the creep-rupture behaviour of Type 304 stainless steel

Cited by 27 publications

References 2 publications

Investigation of crack propagation resistance of 304L, 316L and 316L(N) austenitic steels in liquid sodium

Investigation of crack propagation resistance of 304L, 316L and 316L(N) austenitic steels in liquid sodium

Liquid metal embrittlement and deformation induced martensite: The case of 316 L austenitic steel LME by liquid eutectic gallium-indium

Evaluation of Microstructural, Mechanical Properties and Corrosion Behavior of AISI Type 316LN Stainless Steel and Modified 9Cr-1Mo Steel Exposed in a Dynamic Bimetallic Sodium Loop at 798 K (525 °C) for 16,000 Hours

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