Effect of high-temperature tempering on resistance to fracture of heat treatable structural steels
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With increasing tempering temperature (in the range of 620–680°C) the strength characteristics decrease monotonically, while the toughness (aC, T50) reaches a peak with tempering at 640°C.
With quenching from the intercritical temperature range the toughness does not reach a maximum value in the presence of more than 5% ferrite.
KeywordsFerrite Structural Steel Strength Characteristic Intercritical Temperature Intercritical Temperature Range
- 1.M. A. Kramarov and A. A. Kroshkin, "Effect of strength level on resistance to brittle fracture and sensitivity to cracks of medium-carbon alloy steels", in: Metal Science [in Russian], No. 13, Sudostroenie, Leningrad (1969), pp. 3–9.Google Scholar
- 2.M. A. Kramarov and Yu. V. Shakhnazarov, "Resistance of steel 40Kh to crack propagation in relation to tempering temperature", Metal. i Term. Obrabotka Metal., No. 7, 76–77 (1971).Google Scholar
- 3.V. G. Martynov, "Effect of tempering temperature on resistance to crack propoagation of steel 18Kh2N4VA", Problemy Prochnosti, No. 8, 74–76 (1973).Google Scholar