Fig. 9.10 (Part 2) (e) Large austenitic grain size (parent structure similar to that shown in Fig. 8.8 (Part 1) c ). Austenitized at 730 °C, transformed at 20 °C, water quenched from the austenitizing temperature. 710 HV. Bisulfite. 250×. (f) Large austenitic grain size (parent structure More

Fig. 9.28 (Part 4) (j) Variation with austenitic grain size of the amount of microcracking in a hardened 1.2% C steel. Source: Ref 26 . More

Fig. 10.11 (Part 1) Revealing the austenitic grain size in a 0.3% C quenched-and-tempered steel. 0.25C-0.06Si-0.52Mn (wt%). (a) Austenitized at 860 °C, water quenched. Picral-HCl. 250×. (b) Austenitized at 860 °C, water quenched. Nital + aqueous picral. 250×. (c) Austenitized at 860 °C More

Fig. 10.11 (Part 2) Revealing the austenitic grain size in a 0.3% C quenched-and-tempered steel. 0.25C-0.06Si-0.52Mn (wt%). (a) Austenitized at 860 °C, water quenched. Picral-HCl. 250×. (b) Austenitized at 860 °C, water quenched. Nital + aqueous picral. 250×. (c) Austenitized at 860 °C More

Fig. 10.12 Revealing the austenitic grain size in a 0.5% C quenched-and-tempered steel. 0.50C-0.06Si-0.7Mn (wt%). (a) Austenitized at 960 °C, water quenched, tempered at 150 °C for 30 min. Picral-HCl. 250×. (b) Austenitized at 960 °C, water quenched, tempered at 325 °C for 30 min. Picral More

Fig. 10.13 Revealing the austenitic grain size in a 0.8% C quenched-and-tempered steel. 0.79C-0.01Si-0.3Mn (wt%). (a) Austenitized at 860 °C, water quenched. Picral-HCl. 250×. (b) Austenitized at 860 °C, water quenched, tempered at 150 °C for 30 min. Picral-HCl. 250×. (c) Austenitized More

Fig. 30 Influence of surface heating rate on austenitic grain size. Source: Ref 15 , 27 More

Fig. 9.47 The influence of austenitic grain size on the TTT curve of a steel containing C = 0.87%, Mn = 0.3%, and V = 0.27%. Source: Adapted from Ref 51 More

Fig. 9.48 The effect of austenitization temperature on the austenitic grain size for the same holding time at temperature for a silicon-deoxidized steel. Source: Adapted from Ref 52 More

Fig. 9.55 Standard deviation of the measured austenitic grain size in different combinations of time and temperature for austenitization. Steel containing C = 0.46%, Mn = 0.7%, Al = 0.02%, and N = 32 ppm. The spread in the grain size distribution increases in the temperature range where More

Fig. 10.21 Austenitic grain size as a function of the number of normalizing cycles for the steel in Fig. 10.20 . Average of approximately 500 measurements per sample. 95% confidence intervals for the average are plotted. Source: Ref 14 More

Fig. 8 Relationship between quench cracking frequency and austenitic grain size. Source: Ref 8 More

Fig. 8.17 Comparison of austenitic grain size in (a) coarse-grained SAE 1015 steel and (b) fine-grained SAE 4615 steel after carburizing. Light micrographs. Original magnification: 1000×. Source: Ref 8.16 More

Fig. 7.4 (Part 2) (e) Normalized from 950 °C. A larger austenitic grain size has developed here than in the specimen shown in (a) due to the higher austenitizing temperature, and the proeutectoid cementite has precipitated during cooling as Widmanstätten intragranular plates as well as grain More

Fig. 21.34 Fatigue limits as a function of austenitic grain size for 8719 steel carburized and hardened as marked. Source: Ref 21.57 More

Fig. 21.36 Fatigue limits as a function of austenitic grain size and retained austenite in carburized 8719 steel. Source: Ref 21.57 More

Fig. 2.31. Variation of FATT with austenitic grain size at fixed hardness and impurity levels ( Ref 85 ). More

Fig. 5-13 Austenitic grain size as a function of austenitizing temperature for various tool steels More

Fig. 12-8 Austenitic grain size as a function of second austenitizing temperature of D2 steel after quenching from first austenitizing temperatures as indicated. The austenite grain size as a function of austenitizing temperature for specimens “single quenched” from a single austenitizing More

Fig. 14-12 Austenitic grain size versus second austenitizing temperature for T1 and M2 high-speed steels. Type T1 was prequenched from 1290 °C (2350 °F) and type M2 from 1220 °C (2225 °F). Source: Ref 17 More