Search Results for Quenching (cooling)

Fig. 4 When the quench cooling rate is known in terms of the distance ( 1 16 in.) from the end of a Jominy end-quench specimen, the actual or calculated hardenability required to produce either of two levels of martensite content can be determined from this graph. For example More

Fig. 30 Comparison of the cooling power of conventional and fast quenching oils. Source: Ref 2 More

Fig. 12 Effect of flow rate of quenching oil on the cooling time of scale-free steel bars. Temperature range criteria are shown in Table 1 . Source: Ref 9 More

Fig. 10 Percentage of retained austenite after air cooling or water quenching followed by plastic straining. Source: Ref 11 More

Fig. 36 Unstable cooling due to surface oxidation during water quenching of S45C carbon steel. Water temperature is 30 °C (85 °F). Test specimen is a solid cylinder 10 mm (0.4 in.) in diameter by 30 mm (1.2 in.) in length. More

Fig. 39 Cooling curves for a typical accelerated quenching oil as a function of probe size. Probe is type 304 stainless steel with a type K thermocouple at the geometric center. Bath temperature = 65.5 °C (149.9 °F). Flow rate past the probe surface = 15 m/min (50 ft/min). More

Fig. 40 Effect of mass and section size on cooling curves in water quenching More

Fig. 41 Effect of mass and section size on cooling curves in oil quenching More

Fig. 44 Effect of mass and section size on center cooling curves in still quenching 100 mm (4 in.) long commercial drill rod cylinders of various diameters in water More

Fig. 62 Cooling curves obtained during quenching in water, petroleum oil, aqueous polymer solution, molten salt, and molten sodium (at 115, 200, and 300 °C, or 240, 390, and 570 °F). The cooling curves were obtained using a 10 mm (0.4 in.) diameter by 30 mm (1.2 in.) cylindrical silver probe More

Fig. 11 Quenching of a silver sphere. (a) Cooling-rate history. (b) Broadband acoustical data. (c) Narrowband acoustical data. Source: Ref 44 More

Fig. 2 Typical temperature/time and temperature/cooling rate plots when quenching the ISO 9950 probe in oil More

Fig. 8 (a) Four modes of cooling at quenching. (b) Critical heat-flux densities. Courtesy of N.I. Kobasko More

Fig. 7 Typical cooling curves at surface and core during intensive quenching processes (IQ-2 and IQ-3). Ac 3 , austenitizing temperature; T s , quenchant saturation temperature (100 °C, or 212 °F); T m , water or water/salt solution temperature (usually 20 °C, or 68 °F) More

Fig. 2 Cooling rate versus surface temperature curves for quenching the Liščić/Nanmac probe in mineral oil at 20 °C without agitation (top) and 25% poly(alkylene glycol) (PAG) solution at 40 °C and 0.8 m/s agitation rate (bottom) More

Fig. 13 Cooling curves for fluidized-bed quenching of a 430 kg (946 lb) H13 hot-work steel die casting tool. T/C, thermocouple. Source Ref 3 More

Fig. 1 Cooling rates for spray, polymer, and oil immersion quenching More

Fig. 16 Simulated and experimental cooling curves in the T-profile during quenching More

Fig. 6 Decrease of internal cooling speed on quenching as a function of density calculated using Eq 3 (curved line) and Eq 4 (straight line) More

Fig. 18 Cooling rate curves for unagitated quenching oils at a bath temperature of 40 °C (105 °F) More