Evaluation of Varying Ductile Fracture Criteria for 42CrMo Steel by Compressions at Different Temperatures and Strain Rates

Figure 8

The fracture height reduction and the correspondent DFC under different temperatures and strain rates: (a) 0.01 s⁻¹, 1123~1348 K; (b) 0.1 s⁻¹, 1123~1348 K; (c) 1 s⁻¹, 1123~1348 K; (d) 10 s⁻¹, 1123~1348 K.

(a) The damage distribution of the height reduction ① 55%, ② 53%, ③ 56%, and ④ 49% in the strain rate of 0.01 s⁻¹

(b) The damage distribution of the height reduction ① 55%, ② 58%, ③ 59%, and ④ 53% in the strain rate of 0.1 s⁻¹

(c) The damage distribution of the height reduction ① 59%, ② 58%, ③ 59%, and ④ 58% in the strain rate of 1 s⁻¹

(d) The damage distribution of the height reduction ① 61%, ② 59%, ③ 62%, and ④ 57% in the strain rate of 10 s⁻¹