Weak Beam TEM Study on Stacking Fault Energy of High Nitrogen Steels

• DOI: 10.2374/sri09sp038
• Publication Date: 2009-07-01
• Authors: M. Ojima; Yoshitaka Adachi; Yo Tomota; Y. Katada; Yoshiki Kaneko; Kensuke Kuroda; H. Saka
• Keywords: Stacking-fault energy; Stacking fault; Hardening (computing); Work hardening; Chemical Mechanical Planarization; Austenitic stainless steel

The nature of the high work-hardening rate nitrogen bearing steels was examined focusing on stacking fault energy (SFE). dislocation configuration and width dissociated dislocations were evaluated in various kinds austenitic stainless with without nitrogen, using weak beam method. Nitrogen addition resulted changing from tangled to planar. was, however, found increase SFE rather than decrease as reported previously can be formulated a function chemical composition, SFE(mJ/m2) = 5.53 - 0.16 (wt%Cr) + 1.40 (wt%Ni) 17.10 (wt%%N). These results indicate that planarization by is inadequately explained terms SFE.