Corrosion of AISI Type 316 Stainless Steel in Sodium and the Assessment of Long-Term Tensile Behaviour

Effect of flowing sodium on corrosion and tensile properties of AISI type 316LN stainless steel at 823K

“…Due to thermal effect many transformations are brought about that affect the material properties [24]. Similar changes in mechanical properties were observed for type 316 stainless steel reported earlier [25].…”

Generation of surface degraded layer on austenitic stainless steel piping exposed to flowing sodium in a loop: intercomparison of long-term exposure data

“…Pillai et al [1] analyzed the generation of degraded layer by optical and scanning electron microscopy on specimens of 316 SS exposed to sodium at 823 K for 16 000 h. In this loop the velocity of sodium was 5 m/s and the oxygen content was maintained to less than 2 ppm by cold trapping. The data obtained is in fair agreement with that estimated by employing the equation of Yoshida et al [3] and also compared in Table 1 above.…”

“…Yoshida et al [3] Ganesan et al [4] Pillai et al [1] 80 (4) is widely employed in estimating the complete loss of material when austenitic steels are exposed to sodium.…”

“…In general, the exposure of stainless steel to high temperature sodium brings about four modes of corrosion [1]. The consequences are considered to be the same for all the grades of austenitic stainless steel of comparable composition.…”

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

“…The leaching of nickel causes the destabilization of the austenite and promotes the formation of the ferrite phase. [10] Several reports are available on the preferential leaching of elements from structural materials in flowing sodium, leading to changes in heat transport and mechanical properties. [11][12][13] When in contact with ferritic steels and austenitic stainless steels at high-temperature, liquid sodium can function as an agent for transport of alloying elements such as nickel, chromium, molybdenum, manganese, and carbon.…”