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Ｔｈｅｓｔｕｄｙｏｆｏｘｉｄａｔｉｏｎｓｐｅｅｄｏｆｃｈｒｏｍｉｃａｎｄｍａｎｇａｎｉｃｗｈｉｔｅｃａｓｔｉｒｏｎｓ (3.0 %Ｃ ;1.0 ,… ,1.1%Ｓｉ;0 .3,… ,0 .4 %Ｍｎ ;0 .0 5%ＰａｎｄＳ)ｉｓｃａｒｒｉｅｄｏｕｔｏｎｔｈｅ″Ｄｅｒｉｖａｔｏｇｒａｐｈ″ｉｎｓ
The study of oxidativepeedofchromicandmanganicwhitecastirons (3.0% C; 1.0, ..., 1.1% Si; 0.3, ..., 0.4% Mn; 0.05% Pands) iscarriedoutonthe “Derivatograph” ins