Abstract:Steel scrap is raw materials of the recycled steels refined in electric arc furnaces, and this recycle process is good for keeping our living environment. Authors focus in the toughness of the recycled steels that contain much tramp elements and nitrogen. Chemical compositions of specimens are 0.17C-0.20Si-1.15Mn,Cu : 0.08 0.50mass%,Ti : 0.006 0.031mass%. This report contains properties of HAZs (heat affected zones) in thermal cycled mother steels, and these HAZs were estimated a heat input of 45-600 kJ/cm. Th… Show more
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