Metallurgy of vanadium-microalloyed, high-carbon steel rod

Publisher Website
Google Scholar
Abstract
Factors controlling the degree of vanadium strengthening developed in series of 0·6 and 0·8% C rods by a wide range of forced-air cooling treatments have been examined. Multiple linear-regression analysis has been applied to quantify the strengthening effect of vanadium in terms of precipitation strengthening and changes in the ferrite–pearlite microstructure. The possibility of an effect from the dislocation substructure has been considered qualitatively. The precipitation-strengthening contribution decreased with increasing cooling rate, and this effect was more pronounced at the lower carbon level. These effects have been related to the degree and size of V(CN) precipitation. However, the tensile strength of these materials increased as the cooling rate was accelerated, and it has been shown that the loss in dispersion strengthening is more than compensated for by concurrent increases in interstitial and microstructural strengthening. The successful application of this work to commercial rod production has been described. MST/145

This publication has 2 references indexed in Scilit: