Stepped hardening as a method of increasing the structural strength of steel 42Kh2GSNM
- 15 Downloads
Stepped quenching in the range 430–470°C does not increase the structural strength of steel 42Kh2GSNM.
To increase the structural strength of sheet steel 42Kh2GSNM it is recommended to carry out stepped quenching with holding near the lower boundary of the pearlitic range. This holding must not exceed the incubation period of carbon-enriched zones in the austenite which during the subsequent cooling become transformed into carbide phase.
KeywordsCarbide Austenite Lower Boundary Incubation Period Sheet Steel
Unable to display preview. Download preview PDF.
- 1.Yu. A. Gorbatsevich and E. A. Smol'nikov, "Highly stepped hardening of high-speed steels", Metalloved. Term. Obrab. Met., No. 2, 2–6 (1973).Google Scholar
- 2.H. Thiede, Härter-Techn. Mitt.,28, 270–276 (1973).Google Scholar
- 3.R. P. Romashin and B. A. Apaev, "The effect of the hardening method on the strength and ductile characteristics of high-strength steels", Metalloved. Term. Obrab. Met., No. 9, 73–75 (1975).Google Scholar
- 4.G. M. Kondrat'ev, Regular Thermal Regime [in Russian], Gostekhizdat, Moscow (1956).Google Scholar
- 5.L. G. Onuchin and M. Kh. Shorshorov, "Disintegration of austenite in uninterrupted cooling", Dokl. Akad. Nauk SSSR,271, No. 5, 1166–1170 (1983).Google Scholar
- 6.B. A. Apaev and A. P. Kraev, "The magnetometric device MAG-81BA with increased sensitivity of the measuring circuit and automatic recording of the readings", Zavod. Lab.,49, No. 5, 33–35 (1983).Google Scholar