Materials Science and Engineering: A ( IF 4.652 ) Pub Date : 2020-01-07 , DOI: 10.1016/j.msea.2019.138897 J.-H. Shin; J.-S. Jeong; J. Lee; S.-D. Kim; J.H. Jang; Joonoh Moon; H.-Y. Ha; T.-H. Lee
Discrepancies remain about nature of dislocation-interstitial interaction governing yielding discontinuity in fcc materials. Here, we show that outward diffusion of nitrogen from stacking fault (SF) into matrix causes strain redistribution, leading to lowering stacking fault energy. Local fluctuation of nitrogen promotes fault growth coupled with nitrogen-enriched zone, contributing to enhanced plasticity.