Pitting resistance and microstructure evolution of high-carbon austenitic stainless steel BN2R after aging treatment
Source abstract
Abstract
High-carbon austenitic stainless steels (ASSs) offer superior pitting resistance with lower cost compared to 304 ASS, but the rapid precipitation kinetics limit their welding applicability. This study explores the impact of aging treatment on microstructure and pitting resistance of BN2R, a new ASS with 0.15 wt% carbon, to define application boundaries. BN2R shows the nose temperature for precipitation is 850°C, while shows maximum sensitization at 750°C, where pitting resistance decreases greatest. Additionally, the pitting morphology of aged specimens show sensitized grain boundary dissolution. Characterization confirms Cr depletion around M 23C 6 as the main cause of reduced pitting resistance.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Hydrogen embrittlement and corrosion behaviors in metals · Welding Techniques and Residual Stresses · Corrosion Behavior and Inhibition
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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