. Transactions. Fig. 9.—Per>; of the original Solidification Dendritesafter six slow coolings. Pure Cast-Iron etched withSomuM Picrate. Magnified 18 diameters. j^aM E4HH^^ ? iP! m»3ff^^M^ 1 ^3^M fB!^*^iSf^ f- ? ^ ^H^^^^ ^^B^K^-. ^ ^Sgt% L^[ j ^^^^r* *flK^^IV9 T^m ^M 1^ ••• ^fl ?B m ?1 Fig. 1].—Pure Cast-Iron No. 2Aquenched from 950°. Contact ofEutectic with Graphite. FineNeedles are Pro-eutectoid Ce-mentite. Magnified 85 Fig. 12.—Pure Cast-Iron quenchedafter Kepeated Oscillations ofTemperature, Fig. 7. Magnified85 diameters. 470 RUFFiS CARBON-IRON EQUILIBRIUM D
. Transactions. Fig. 9.—Per>; of the original Solidification Dendritesafter six slow coolings. Pure Cast-Iron etched withSomuM Picrate. Magnified 18 diameters. j^aM E4HH^^ ? iP! m»3ff^^M^ 1 ^3^M fB!^*^iSf^ f- ? ^ ^H^^^^ ^^B^K^-. ^ ^Sgt% L^[ j ^^^^r* *flK^^IV9 T^m ^M 1^ ••• ^fl ?B m ?1 Fig. 1].—Pure Cast-Iron No. 2Aquenched from 950°. Contact ofEutectic with Graphite. FineNeedles are Pro-eutectoid Ce-mentite. Magnified 85 Fig. 12.—Pure Cast-Iron quenchedafter Kepeated Oscillations ofTemperature, Fig. 7. Magnified85 diameters. 470 RUFFiS CARBON-IRON EQUILIBRIUM DIAGRAM. sugar charcoal in its tube, and No. 5 with kish from an ironblast-furnace. The tubes containing Nos. 2 and 3 had no car-burizing material, and each was separated from its specimenby means of sheet asbestos. The specimen of malleable cast-iron, No. 1, was enclosed ina like steel tube. Table III., and Fig. 7.— Graphitization and Be-Combination inCertain Cast-Irons. Treatment of all Specimens. §?32 oiE o 1000 3 min. 3 m in. 4 luin. 3 min. 3 mi 960 300 ^ /„* 20^=A => |(U -f ta ^v XI #/ V^ \ \^.^/ v%^ ^ /-^^^ lo mm. 1 ,^ 1 15 min. 17 min. 14 min. Comb, carbon Graphite Total carbon Silicon Manganese None. Phosphorus Not det. Sulphur 2oJP3 p o Cast-ironNo. 2 A,Alone. Cast-ironNo. Cast-Irons. No. No. 4. I -, . Sugar Char- I
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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries
