高速度鋼の Ms 點に及ぼす合金元素の影響に就いて

概要

論文の詳細を見る
The Ms temperature due to additional elements of high speed steels having the base composition of 18-4-1 type was studied dilatometrically, and the relationship between the Ms temperature and the chemical composition of the austenite at the hardening temperature was discussed. Ms temperature of the steel was lowered gradually as each content of carbon, tungsten, chromium or molybdenum was raised, and was almost independent from the content of aluminum, while with addition of vanadium, titanium or boron, Ms temperature is raised significantly, and was raised with cobalt content up to 6%, then lowered with more cobalt addition. The effects of carbon, vanadium, chromium and titanium were presumed to be attributed to the variation in the amount of carbide M_23C_6, and these of tungsten and molybdenum were probably caused by the variation in the amount of carbide M_6C. The effect of cobalt was presnmed to be related with the solubility change in the austenite of the other alloying elements which was caused by the cobalt addition.
社団法人日本鉄鋼協会の論文
1953-04-25