Atomistic study of nano-sized kappa-carbide formation and, its interaction with dislocations in a cast Si added FeMnAlC lightweight steel

作者：Kim C W; Kwon S I; Lee B H; Moon J O; Park S J; Lee J H; Hong H U^*

来源：Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 2016, 673: 108-113.

DOI：10.1016/j.msea.2016.07.029

• Tomography
• Lightweight steel
• Dislocations
• Plasticity
• Precipitation
• Shear bands

The Si addition facilitates the partitioning of carbon to kappa-carbide during aging in a Fe-30Mn-9Al-0.9C-0.5Mo lightweight steel, i.e. from (Fe,Mn)(3)AlC0.38 to (Fe,Mn)(3)AlC0.51. Reduced plasticity was found in 1% Si-added specimen where one directional shearing of kappa-carbide was prominent. Novel insights into dislocation-kappa-carbide interactions are discussed in terms of atomistic shear.

• 出版日期2016-9-15