Microscopic Analysis of Metals

100 diameters 20 diameters 20 per cent abscissæ allotropic alloy annealed steels annealing appear Ar₁ Ar₂ attack austenite bodies carbide carbon steel cast Chatelier colour commencement constituents cooling copper correspond crystalline curve diagram dilute Dr Sorby emery emery papers enlargement Etched eutectic ferrite forged grains hard hardened hardenite heated and quenched homogeneous iced water independent cementite influence ingot mould Inst isolated Jour lamellæ layers liquid Martens martensite mechanical metal metallography method micro-structure micrographic analysis microscope mixture needles nitric acid obtained oxidation tinted parallel pearlite photograph plates Polish-attack polishing in bas-relief Polishing on rouged preparation Professor proportion of carbon pure iron quenched at 720 quenched in water quenched steel reagent recalescence Reheated relief Roberts-Austen rouged parchment rubbing sample scratched separation shows silver solid solution solidification sorbite specimen Spiegeleisen structure surface temperature of quenching tempering tincture of iodine trans transformation troostite water at 15