中文会议： 第四届先进结构钢及轧制新技术国际研讨会论文集

会议日期： 2006-01-01

会议地点： 辽宁

主办单位： 中国机械工程学会,辽宁省机械工程学会

作　　者： ; ; ; (董瑞峰）; (闫）;

机构地区： 东北大学材料与冶金学院轧制技术及连轧自动化国家重点实验室

出　　处： 《第四届先进结构钢及轧制新技术国际研讨会》

摘　　要： AN INDUSTRIAL EXPERIMENT OF DEVELOPING 540MPA GRADE DUAL-PHASE HOT STRIP STEEL USING ULTRA-FAST COOING TECHNOLOGY ON BAOTOU CSP LINE WAS INTRODUCED IN THE PRESENT WORK. THE TEST DUAL-PHASE STEEL,WHOSE THICKNESS IS OF 6 MM, WAS RODUCED BY USING THIN-SLAB CONTINUOUS ROLLING AND TWO STAGE COOLING PROCESS, INCLUDING OF LAMINAR AND ULTRA FAST COOLING; THE MICROSTRUCTURES OF THE TEST DUAL-PHASE STEEL ARE FERRITE AND MARTENSITE. THE VOLUME FRACTION OF MARTENSITE IS 12％; THE MECHANICAL PROPERTIES OF THE TEST DUAL-PHASE STEEL ARE UNIFORM IN WIDTHWISE AND LENGTHWISE WITH THE TENSILE STRENGTH OF 555565MPA, THE YIELD STRENGTH OF 335~355MPA, THE TOTAL ELONGATION OF 31~34％, THE YIELD RATIO OF 0.59~0.64 AND THE N VALUE OF 0.18. THE TEST DUAL-PHASE STEEL WITH GOOD SERVICE PERFORMANCE HAS BEEN USED TENTATIVELY FOR MAKING THE BEAM AND THE TAIL-BOARD OF HEAVE-DUTY TRUCK.

领　　域： [文化科学]