特殊钢
特殊鋼
특수강
Special Steel
2015年
6期
45-48
,共4页
压力容器用钢%12Cr2Mo1R%150 mm超厚板%热处理%组织%力学性能
壓力容器用鋼%12Cr2Mo1R%150 mm超厚闆%熱處理%組織%力學性能
압력용기용강%12Cr2Mo1R%150 mm초후판%열처리%조직%역학성능
试验用12Cr2Mo1R钢(/％:0.08C,0.07Si,0.45Mn,2.16Cr,0.95Mo,0.18Ni,0.14Cu,0.015Al,0.015Sn)经电弧炉-300 mm×2 000 mm电渣重熔扁坯轧制成150 mm厚板(开轧1 145℃,终轧850℃).通过热模拟试验和温度场的有限元仿真得出12Cr2Mo1R钢的静态连续冷却转变(CCT)曲线和超厚板表面、厚度1/4处和1/2处(心部)的冷却温度曲线.热轧板经916℃226 min正火,698℃240 min回火后,钢板1/4厚度处为贝氏体+少量铁素体,1/2厚度处为贝氏体+铁素体,其力学性能-屈服强度464 MPa,抗拉强度585 MPa,伸长率22％,符合供货要求.
試驗用12Cr2Mo1R鋼(/％:0.08C,0.07Si,0.45Mn,2.16Cr,0.95Mo,0.18Ni,0.14Cu,0.015Al,0.015Sn)經電弧爐-300 mm×2 000 mm電渣重鎔扁坯軋製成150 mm厚闆(開軋1 145℃,終軋850℃).通過熱模擬試驗和溫度場的有限元倣真得齣12Cr2Mo1R鋼的靜態連續冷卻轉變(CCT)麯線和超厚闆錶麵、厚度1/4處和1/2處(心部)的冷卻溫度麯線.熱軋闆經916℃226 min正火,698℃240 min迴火後,鋼闆1/4厚度處為貝氏體+少量鐵素體,1/2厚度處為貝氏體+鐵素體,其力學性能-屈服彊度464 MPa,抗拉彊度585 MPa,伸長率22％,符閤供貨要求.
시험용12Cr2Mo1R강(/％:0.08C,0.07Si,0.45Mn,2.16Cr,0.95Mo,0.18Ni,0.14Cu,0.015Al,0.015Sn)경전호로-300 mm×2 000 mm전사중용편배알제성150 mm후판(개알1 145℃,종알850℃).통과열모의시험화온도장적유한원방진득출12Cr2Mo1R강적정태련속냉각전변(CCT)곡선화초후판표면、후도1/4처화1/2처(심부)적냉각온도곡선.열알판경916℃226 min정화,698℃240 min회화후,강판1/4후도처위패씨체+소량철소체,1/2후도처위패씨체+철소체,기역학성능-굴복강도464 MPa,항랍강도585 MPa,신장솔22％,부합공화요구.
