EFFECT OF DIFFERENT ELEMENTS ON THE HIGH CHROMIUM HIGH SPEED STEEL (II)

Abstract

In the first report in the same title, the author made clear the effect of C, Cr and W on high speed steels containing high chromium. In the present investigation, the author studied the effect of 0-4% V and 0-10% Co on high speed steels containing high cromium.
As results of this investjgation, it was ascertained that the steels containing 1.3-1.4%C, 10% Cr, 4%W, 5%Co becomes most efficient at the content of 1.8-2.0%V, and that the cutting durabi-lity is enhanced as the cobalt content is increased in the range of 0-10%