Combined Thermomechanical Treatment for the Mining Industry

Albert Popelyukh; Maria Yurkevich; Pavel Popelyukh

doi:10.4028/www.scientific.net/AMM.698.382

Paper Titles

Effect of Copper on the Friction Properties of Gray Cast Iron
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Electron-Beam Cladding of Boron Carbide on Low-Alloyed Steel at the Air Atmosphere
p.369

Evaluation of Wear Resistance of Products on the Basis of Mechanically Activated Materials
p.374

Reliability Increase of Dissimilar Steel Welded Joints
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Combined Thermomechanical Treatment for the Mining Industry
p.382

Development of a Force Parameter Model for a New Severe Plastic Deformation Technique – Multi-ECAP-Conform
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Impact of Local Weld Pool Zones on the Heterogeneous Material Structure
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Computer Simulation of the Drawing Process of Cylindrical Cups Taking into Account the Microstructure of the 5056 Alloy
p.395

Rapid Determining of the Optimum Operation Mode for Abrasive Waterjet Cutting Process by Means of Acoustic Emission
p.401

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 698Combined Thermomechanical Treatment for the Mining...

Combined Thermomechanical Treatment for the Mining Industry

Abstract:

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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Periodical:

Applied Mechanics and Materials (Volume 698)

Pages:

382-385

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.698.382

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Online since:

December 2014

Authors:

Albert Popelyukh, Maria Yurkevich, Pavel Popelyukh

Keywords:

Fracture, Mining Fatigue Crack Growth, Steel, Thermomechanical Treatment

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