The distribution behavior of boron in steel such as segregation along the grain boundary and formation of borocarbides or boronitrides is sensitively subject to cooling rate, heat treating temperature, and alloying elements (N, Al, Ti). However, in general, it is well known that a very small amount of boron in steel is hard to be detected with electron spectroscopy because of its low atomic value, so that a delicate and special technique is necessary to observe boron distribution in steel. So, in this present study, characteristics of boron distribution with variation of cooling rate after austenitization were investigated in low carbon steel employing Neutron Autoradiography method. From those results, the behavior of boron in low carbon steel were discussed.
展开▼
