Abstract：The microstructure evolution of cold rolled thin steel strip produced by CSP process was studied by metallographic microscope and QUANTA-400 environmental scanning electronic microscope. At the meantime time, the chemical composition, quantity and partlcle size distribution of cold rolled thin steel strip produced by CSP proeess were studied by chemiea phase analysis and SAXS method with a 3014 X-ray diffracto-spectrometer and a Kratky small ang1e scattering goniometer.The results show that the quantity of duplex impurity in CSP thin slab is minute. The size of crystal grain of the steel strip side along the width direction during continuous casting and continuous rolling,cold rolling and annealing is finer than that of the steel strip center and the phenomenon is more obvious duing continuous casting and continuous rolling than during other processes. The cleanliness of CSP hot rolled strip for cold rolling is high. The precipitated phases in cold rolled and annealed thin steel strip are nano-scaled M3C and nano-scaled MC.The amount of nano-scaled M3C in cold rolled thin steel strip after annealing is about 26 time more than that of nano-scaled MC in cold rolled thin steel strip after annealing.
计云萍 任慧平 金自力 闫 波. CSP工艺冷轧薄板组织演变和第二相分析[J]. 钢铁, 2010, 45(1): 74-74.
Hui-ping REN Zi-li JIN Bo YAN. Microstructure Evolution and Second Phase Analysis of Cold rolled Thin Steel Strip Produced by CSP Process. Iron and Steel, 2010, 45(1): 74-74.
2010, Vol. 45 
