An examination of the validity of existing empirical formulae for the calculation of ms temperature

The aim of the investigation is to test existing M/sub s/ formulae with measured M/sub s/-composition data collected over the past 15 years in alloy design programs at Berkeley. The maximum total composition of alloying elements is about 21 wt pct, and the maximum individual elemental compositions are 0.5 pct C, 12.2 pct Cr, 2.1 pct Mn, 12.5 pct Ni, 4.2 pct Mo, 3.2 pct Si, and 9 pct Co. These values are beyond the composition limit allowed by existing formulae. However, this investigation involves examining the validity of predicting M/sub s/ temperatures in the high alloy as well as low alloy range. 33 refs.