Heat treatment of tool steel with mixed martensite-bainite transformation of austenite

Popelyukh, A. I.; Батаев, А. А.; Teplykh, A. M.; Ognev, A. Yu.; Golovin, Evgeniy

doi:10.3103/s096709121104019x

Cited by 3 publications

(3 citation statements)

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“…Finally, samples were isothermally kept in the box furnace at 350 °C for one hour with the following cooling at still air. The results obtained were compared with the properties of steels treated by other technologies: the first technology was quenching and tempering at 400 °C, and the second one was hightemperature thermomechanical treatment followed by quenching and tempering at 400 °C (HTMT) [8]. Mineral oil was used as a cooling medium in quenching.…”

Section: Materials and Researchmethodsmentioning

confidence: 99%

“…Various types of high-disperse structures having high resistance to degradation under dynamic and cyclic loads may be formed by thermomechanical treatment of steel [3,4,5,6,7]. Another promising trend to increase characteristics of structural strength is to make a mixed structure consisting of two or more components, some of which provide high strength, while the other improves crack propagation resistance of steel [8,9]. A new method of high-temperature thermomechanical treatment of steel with martensite-bainite transformation of austenite (HTMMB) is developed at the materials science department of Novosibirsk State Technical University.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Thermomechanical Treatment on the Properties of Steel with a Mixed Martensitic-Bainitic Structure

Popelyukh

Yurkevich

Popelyukh

2015

AMM

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The structure formation features of steel with 0.4 C, 1.5 Cr, 1.5 Ni, 0.5 Mo (wt. %) after high-temperature thermomechanical treatment with martensite-bainite transformation of austenite was investigated. It was found that a mixed structure consisting of alternating elongated areas of tempered martensite and lower bainite was formed by steel treatment. The proposed treatment can significantly increase impact strength and fracture toughness of steel. This technological process is mostly effective for strengthening alloy steels with increased resistance of under-cooled austenite.

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Section: Materials and Researchmethodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Thermomechanical Treatment on the Properties of Steel with a Mixed Martensitic-Bainitic Structure

Popelyukh

Yurkevich

Popelyukh

2015

AMM

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“…Steels with a mixed martensitic-bainitic structure also have a variety of mechanical properties [5,6]. Investigations devoted to the creation of a highstrength structure in steel with significant resistance to a fatigue failure showed that one of the most promising technologies is thermal treatment with mixed martensitic-bainitic transformation of austenite [7]. mechanical treatment of steel with mixed martensitic-bainitic transformation of austenite (VTMMB) was developed at the Materials Science department of NSTU.…”

Section: Introductionmentioning

confidence: 99%

Combined Thermomechanical Treatment for the Mining Industry

Popelyukh

Yurkevich

Popelyukh

2014

AMM

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A new method for combined thermo-mechanical treatment of steel 0.4 % C, 1.5 % Cr, 1.5 % Ni, 0.5 % Mo is developed. Thermo-mechanical processing includes hot forging and rapid cooling to the temperature range between the beginning and end of martensitic transformation. The final stage of heat treatment is heating up to the temperature of bainite transformation in which the remaining austenite transforms into a bainite structure and previously formed martensite tempers. In comparison with well known techniques of thermal treatment, the developed thermo-mechanical treatment increases the impact toughness of the steel by 2 times and fatigue crack resistance by 6 times (with equal values of strength parameters). The technological process of high-temperature thermo-mechanical treatment is recommended for treatment of high-strength blank forging.

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