Fig. 1.20 Micrograph of ASTM A 128 austenitic manganese steel (Hadfield steel) casting showing a microstructure consisting of austenite. Etched in 2% nital (5 s) followed by removal of the stain in aqueous 3% EDTA and etching in 20% sodium metabisulfite solution. 64× More

Fig. 24-19 TTT curves for austenitic manganese steel (a) TTT curve of a steel with 1.28% C, 12.4% Mn, 0.35% Si, 0.009% S, 0.030% P, 0.28% Ni, and 0.23% Cu. Austenitized 30 min. at 1050 °C (1920 °F). Grain size 5 to 6. (After Collete, Crussard, Kohn, Plateau, Pomey, and Weisz.) (b) TTT curve More

Fig. 12.9 (a) Austenitic manganese steel. Polygonal austenitic grains and some non-metallic inclusions. Undeformed. Etchant: nital and picral. (b) Austenitic manganese steel lightly cold worked. The slip lines show with relative ease in a clear pattern in this type of steel. Etchant: nital. More

Fig. 20.11 Effect of carbon content on properties of austenitic manganese steel. Source: Ref 1 More

Fig. 2.9 Effect of strain rate on SCC of carbon-manganese steel in carbonate solution. Source: Ref 2.129 More

Figure 6-1 Example of decarburized surface of Hadfield manganese steel. Left, martensitic structure in zone with less than 0.48% carbon, solution-annealed condition (50 ×, nital, then 20% aqueous sodium metabisulphite). Right, aging at 1140°F for 30 min produces carbide precipitation More

Fig. 3 Variation of properties with carbon content for austenitic manganese steel containing 12.2 to 13.8% Mn. Data are for castings weighing 3.6 to 4.5 kg (8 to 10 lb) and about 25 mm (1 in.) in section size that were water quenched from 1040 to 1095 °C (1900 to 2000 °F). Flow under impact More

Fig. 17.36 Nominal stress vs. elongation curves for carbon-manganese steel in slow-strain-rate test in boiling 4 N NaNO 3 and in oil at the same temperature. Source: Ref 17.58 More

Fig. 17.41 Potentiodynamic polarization curves for carbon-manganese steel in 1 N sodium carbonate plus 1 N sodium bicarbonate at 90 °C (195 °F) showing the domains of behavior predicted from curves. Source: Ref 17.71 More

Fig. 5.14 (Part 2) (d) Semikilled carbon-manganese steel. Testpiece (cut in short transverse direction) containing large elongated silicate inclusions. 8% reduction of area. Unetched. 500×. (e) Semikilled, aluminum-treated carbon steel. Testpiece (cut in short transverse direction More

Fig. 12.115 Dredger pump with manganese steel side liners. Source: Ref 4 More

Fig. 12.116 Frog casting for railway line crossing made of austenitic manganese steel. Source: Ref 38 More

Fig. 12.117 Classification of austenitic manganese steel More

Fig. 3.26 Mold stripping times for medium alloyed and manganese steel castings More

Fig. 19-2 Characteristics of manganese steel. (a) Properly heat treated and before use. (b) Slip lines near the surface of a work hardened Mn-steel casting. Slip is evident on at least 3 slip systems in several of the grains.(c) Hardness profiles from Mn-steel castings illustrating More

Fig. 19-21 Work hardening profiles for two manganese steel hammers used in hammermills More

Fig. 9.5 Manganese sulfide inclusions in 0.39% carbon steel, unetched, 250×. Source: Ref 1 More

Fig. 8.78 Micrograph of as-cast steel. High concentration of dendritic manganese sulfide (sometimes called type II sulfide). No etching. More

Fig. 3 SAE 5115 (UNS G51150), chromium-manganese low-carbon steel, salt bath nitrided 90 min at 580 °C (1075 °F), oxidizing molten salt quenched. 500×, nital etch. Courtesy of Kolene Corp. More