Search Results for reheating

Fig. 13(a) Austenite grain coarsening during reheating and after hot rolling for a holding time of 30 min. Titanium contents were between 0.008 and 0.022% Ti. Source: Ref 25 More

Fig. 16 Embrittlement from reheating manganese steel. Cast bars 25 mm (1 in.) in diameter were reheated 48 h at the temperatures indicated after solution annealing and quenching. Source: Ref 3 More

Fig. 24 Effects of reheating on tensile properties of alclad 2024-T81 sheet More

Fig. 35 Effects of reheating time and temperature on tensile properties of 7075-T6 sheet More

Fig. 4 Room-temperature hardness of Muntz metal (Cu-40%Zn) after reheating two different starting microstructures and quenching. The hardness curve on the left is from reheating and quenching a starting duplex (α + β′) microstructure obtained by slow cooling from the disordered β phase More

Fig. 54 Reheating-furnace chain link, sand cast from austenitic manganese steel, that failed by brittle fracture, because material was not stable at operating temperatures. (a) Chain link showing location of fracture. Dimensions given in inches. (b) Macrograph of a nital-etched specimen from More

Fig. 14 Schematic arrangement of equipment used in the gas-stirring, arc-reheating process More

Fig. 20 Induction reheating of the world's largest carbon steel slab. Maximum slab width: 3.2 m; thickness: 0.22 m at 540 tons/h; total power: 42,000 kW. Courtesy of Inductotherm Corp. More

Fig. 30 Reheating-furnace chain link, sand cast from austenitic manganese steel, that failed by brittle fracture, because material was not stable at operating temperatures. (a) Chain link showing location of fracture. Dimensions given in inches. (b) Macrograph of a nital-etched specimen from More

Fig. 9 Metallic filament in center of intergranular crack from reheating or stress-relaxation-induced cracking of Type 347 More

Fig. 4 Jominy hardenability of carburized 8620 steel. (a) Reheat quench. All bars normalized at 925 °C (1700 °F). Core: austenitized 20 min at 845 °C (1550 °F). Case: pack carburized 9 h at 925 °C (1700 °F), box cool; reheated 20 min at 845 °C (1550 °F), quenched. (b) Direct quench. All bars More

Fig. 36 Effect of direct quenching and reheat hardening in SAE 4122 after gas carburizing at various surface carbon contents. (a) Direct quenched with 0.75 wt% surface carbon. (b) Reheat hardened with 0.75 wt% surface carbon. (c) Direct quenched with 1 wt% surface carbon. (d) Reheat hardened More

Fig. 4 Fuel ash corrosion on superheater and reheater tubes showing the maximum metal loss at the 2 and 10 o'clock positions More

Fig. 1 Micrograph showing typical α-phase morphology found in reheated magnetohydrodynamic material. Specimen has been etched to darken the eutectic phase. More

Fig. 18 Schematic of a plasma ladle reheater More

Fig. 19 Bending fatigue crack initiation in gas-carburized and reheated 4320 steel. The dashed line corresponds to maximum depth of surface oxidation, and all fracture below dashed line is transgranular. Source: Ref 49 More

Fig. 14 Structure of a typical reheated manganese steel. ASTM A 128, grade B-3, steel annealed at 1120 °C (2050 °F), water quenched, and reheated above 315 °C (600 °F). Structure is austenite with extensive carbide precipitation along grain boundaries and within grains. Specimen was etched More

Fig. 6 Martensite-dispersed carbide microstructure in case of reheated and quenched carburized 8620 steel. The carbides are the circular, white features dispersed in the dark, martensitic matrix. Light micrograph. Source: Ref 14 More

Fig. 18 Relation between reheat temperature and austenite grain size with various precipitates. Source: Ref 28 More

Fig. 116 Globular carbides at the surface of a carburized 1% Cr-Mo steel (reheat quenched). 850×. Source: Ref 43 More