"Effective Grain Size" Affecting Low Temperature Toughness in Lath Structure of HSLA Steel
The fine structure in the lath structure of HSLA steel was investigated by means of OM,SEM,TEM and EBSD.The low temperature toughness of the test steel with different heat treatment parameters was also measured."Effective grain size" affecting low temperature toughness was studied from three aspect,such as crystallography,rule for quantitative effect of sub-structure on property and observation of crack propagation path.The results show that block size is the "effective grain size" affecting low temperature toughness.
cleavage fracturelow temperature toughnessblockpacketEBSDeffective grain size
NETL
NSTL
万方数据
维普
