Microalloy Steels: Energy Saving Prospect at Manufacture of Details of Cars

The composition and properties of three constructional microalloyed steel with vanadium, niobium and nitrogen is investigated. High strength and ductility steel in rolling mill products and in forgings were revealed, manufactured according to various flow diagram. The resistance of microalloyed steels to grain growth during heating to 1300 °C has been established. The opportunity of realization of the forging heat forgings in their heat treatment is shown. Output testing was carried out of steels in the manufacturing crankshaft and engine connecting rods. For heavily loaded machine components, the use of 38G2AF, AC40H2NMAF and AC30X3NMAFB steels is recommended. High resistance to grain growth is shown when heating steels microalloyed with vanadium, niobium and nitrogen. High properties of the steel AC40H2NMAF, AC30X3NMAFB and 38G2AF make it possible to recommend them for the manufacture of heavily loaded parts - crankshafts and connecting rods. The possibility of realizing forging heat of forgings made microalloyed steels with vanadium, niobium and nitrogen during their heat treatment to ensure a high level properties and structural requirements.

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Microalloyed Steels for Car Parts

Mukhametzyanova

Shveyova

Astaschenko

2020

IOP Conf. Ser.: Mater. Sci. Eng.

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Thermal Treatment of Cemented Alloyed Steels for the Cold Plastic Deformation

Astashchenko

Shveyova

Shveyov

2020

IOP Conf. Ser.: Mater. Sci. Eng.

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Disclosed is a method of thermal treatment of blanks from alloyed cement steels for cold volumetric stamping and extrusion. The technology ensures the formation of a ferritic-pearlitic structure in steel with a minimum microhardness of individual structural components. Examples of manufacturing of toothed parts by the method of cold wrapping and thin-walled tubular articles during cold extrusion are given. It is shown that cyclic resistance of parts made by cold plastic deformation and hardened by method of chemical-thermal treatment is increased by three or more times. According to the results of metallographic analysis, the ability of steel to cold plastic deformation and the ability to obtain high-quality machine parts are predicted.

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Microalloy Steels: Energy Saving Prospect at Manufacture of Details of Cars

Cited by 2 publications

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Microalloyed Steels for Car Parts

Microalloyed Steels for Car Parts

Thermal Treatment of Cemented Alloyed Steels for the Cold Plastic Deformation

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