Effects of Different Deoxidization Technologies on the Microstructure and Properties of Micro Alloyed Steel
The effect of different deoxidization technologies on the microstructure and properties of low carbon micro alloyed Ti containing steel was studied by means of TEM,SEM and properties test.The results showed that under the technology of deoxidization by first with Al before C,Si,Mn and Nb addition and finally deoxidization by Ti,lots of complex inclusions contained Ti within the size about 0.3～1 μm are formed in steel.These inclusions could induce the nucleation of acicular ferrites which refine the microstructure and improved the properties of steel.