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lnfluence of Alloy Composition on the lmpact
13 other sections not shown
0.5 percent additions of silicon alloying additions alloying elements anneal approximately 50 percent ASTM number austenite bimodal dependency brittle fracture carbide carbon migration mechanism cementite Charpy V-notch CM CM CM concentration crack propagation curves decrease deoxidation detrimental effect dislocations ductile ductile-to-brittle transition behavior effect of silicon effect on toughness effective substitutional solid electrical resistivity embrittlement Enlarged approximately 50 experimental ferrite phase ferrite solution Figure l7 FlGURE furnaced cooled grain boundaries high silicon steels higher silicon impact properties increasing silicon content initial additions initial silicon additions intergranular fracture low oxygen containing manganese Marzola microcrack mild steel minimum transition temperature MlCROSTRUCTURE notch toughness Odin and Goux oxygen containing steel pearlite percent for reproduction percent silicon steel plastic deformation repellent interaction Rinebolt and Harris shown in Figure silicon levels SlLlCON solid solution hardening solubility of carbon specimens steels with silicon stress temperature on silicon tensile properties tensile strengths toughness properties transformation temperatures yield strength