journal article·2024-05Open access

Corrosion mechanism of cold forged 316 stainless steel in molten FLiNaK salt

Minsung Hong, Shmuel Samuha, Peter Hosemann

Corrosion Science· Volume 232

Abstract

This study examined how cold forging (CF) affects the corrosion of 316 stainless steel (SS) in molten FLiNaK salt at 700 °C for 48 h. CF samples had two corrosion areas: one near the top and another displaying intergranular corrosion (IGC). Samples with lower CF (5–30 %) showed more IGC, while the 50 % CF sample had less IGC but the shallowest corrosion depth. This was due to the increased number of grain boundaries, which raised the potential corrosion initiation sites, and certain grain boundaries promoting chromium dissolution, thus enhancing IGC.
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Research context

OpenAlex topics: Nuclear Materials and Properties · Fusion materials and technologies · Advanced materials and composites

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