冷却母曲線の応用について
1974 年 60 巻 9 号 p. 1337-1343
詳細
1974 年 60 巻 9 号 p. 1337-1343
The estimation of hardness distribution curves of the cross section of steel bars quenched was made fromthe master cooling curves of coolants and CCT diagrams of steels. These results were in good agreement with the measured hardness distribution curves for respective steels. The results based on the master coolingcurve was compared with those by Lamont's method and Wever-Rose's method. In consequenceof this comparison, it was found that the method of the master cooling curve was excellent in accuracy andin the range of application for different types of steels and coolants. The critical diameters could be alsoderived from the master cooling curves and CCT curves. This result was in better agreement with thepractical results than that of the Grossman's method.
