Year: 2026
Type: article
Abstract: Planar slips have been frequently recognized in nitrogen-added austenitic stainless steels, often influenced by stacking-fault energy (SFE). On the other hand, nitrogen addition promotes the formation of N-Cr short-range order (SRO), also proposed as a critical factor to contribute to the planar slips. In this study, a specified nitriding technique was performed to fabricate a chromium-free Fe-N binary austenite with 2.4 mass% of fully solid-solutioned N to simplify the relationship among deformation structures, SFE and N-Cr SRO. Wavy slips were found in the Fe-N alloy, which can be explained by its SFE, 44.6 mJ/m2. Planar slips were found in nitrogen-added austenitic stainless steels with almost the same SFE, 42.9 mJ/m2 suggesting that N-Cr SRO rather than SFE seems to be the main reasons causing the planar slips.
Source: ISIJ International
Institutions: Kyushu University, University of Tsukuba
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $700
OpenAlex ID: W7123847753