摘要：AN INDUSTRIAL EXPERIMENT OF DEVELOPING 540MPA GRADE DUAL-PHASE HOT STRIP STEEL USING ULTRA-FAST COO...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.显示全部
摘要：BY ROLLING EXPERIMENTS OF THE Q345C 220MM –THICKNESS STOCK OF CONTINUOUS METAL CAST PROCESS OF SHO...BY ROLLING EXPERIMENTS OF THE Q345C 220MM –THICKNESS STOCK OF CONTINUOUS METAL CAST PROCESS OF SHOU QIN IN LAB, WITH THE APPROACH OF MICROSTRUCTURE DISSYMMETRY CONTROL ROLLING, THE HIGH STRENGTH PLATE STEEL WITH 70MM THICKNESS WAS PRODUCED, THE CONTROLLING OF THE STRENGTH 、DUCTILITY AND TOUGHNESS OF THE STEEL WAS CARRIED OUT IN THIS PAPER, WORK OVER THE RELATION BETWEEN CONTROL ROLLING PROCESS AND THE MICROSTRUCTURE OF THE STEEL, ANALYZE THE MICROSTRUCTURE OF THE PLATE STEEL.显示全部
