The effects of rare earth Ce on the microstructure and properties of V,Ti microalloyed steel are studied by tensile and impact tests as well as with such analysis means as transmission electron microscope,scanning electron micro-scope and energy spectrometer.The results showed that the interlamellar spacing of pearlite for test steel was decreased,in-clusions containing titanium were changed from rectangle with sharp edge angle to smooth spherality as well as long and thin MnS inclusions became shorter and spherized with the increase of rare earth Ce content.Moreover,the yield strength and impact toughness of test steel are improved.
关键词
稀土Ce/V、Ti微合金化钢/夹杂物变质/性能
Key words
rare earth Ce/V,Ti microalloyed steel/modification of inclusions/properties
维普
万方数据