特殊钢
特殊鋼
특수강
Special Steel
2015年
5期
47-50
,共4页
风电塔筒法兰钢S355NL%低温冲击韧性%韧脆转变温度%冲击断口形貌
風電塔筒法蘭鋼S355NL%低溫遲擊韌性%韌脆轉變溫度%遲擊斷口形貌
풍전탑통법란강S355NL%저온충격인성%인취전변온도%충격단구형모
试验和分析了风电塔筒法兰S355NL钢(/％:0.14C,0.22Si,1.35Mn,0.010P,0.002S,0.06Cr,0.01Mo,0.10Ni,0.03Cu,0.40Ceq)-20～-80℃切向和轴向冲击韧性.结果表明,S355NL钢V-型冲击功随试验温度降低而下降,切向试样的韧脆转变温度低于-80℃(-80℃平均冲击功76.89 J),轴向试样的韧脆转变温度在-65℃左右(-60℃平均冲击功96.10 J,-70℃13.28 J),冲击断口形貌由韧性剪切断口转变为准解理断口,直至具有“扇形”解理花样的完全解理断口.
試驗和分析瞭風電塔筒法蘭S355NL鋼(/％:0.14C,0.22Si,1.35Mn,0.010P,0.002S,0.06Cr,0.01Mo,0.10Ni,0.03Cu,0.40Ceq)-20～-80℃切嚮和軸嚮遲擊韌性.結果錶明,S355NL鋼V-型遲擊功隨試驗溫度降低而下降,切嚮試樣的韌脆轉變溫度低于-80℃(-80℃平均遲擊功76.89 J),軸嚮試樣的韌脆轉變溫度在-65℃左右(-60℃平均遲擊功96.10 J,-70℃13.28 J),遲擊斷口形貌由韌性剪切斷口轉變為準解理斷口,直至具有“扇形”解理花樣的完全解理斷口.
시험화분석료풍전탑통법란S355NL강(/％:0.14C,0.22Si,1.35Mn,0.010P,0.002S,0.06Cr,0.01Mo,0.10Ni,0.03Cu,0.40Ceq)-20～-80℃절향화축향충격인성.결과표명,S355NL강V-형충격공수시험온도강저이하강,절향시양적인취전변온도저우-80℃(-80℃평균충격공76.89 J),축향시양적인취전변온도재-65℃좌우(-60℃평균충격공96.10 J,-70℃13.28 J),충격단구형모유인성전절단구전변위준해리단구,직지구유“선형”해리화양적완전해리단구.
