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Original scientific paper

Mechanical and structural response of AISI 4135 steel after controlled cooling process

P. Kučera ; Vitkovice Cylinders Inc., Czech Republic
E. Mazancová ; VŠB - Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, Czech Republic

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page 165-168

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AISI 4135 steel is a commonly used material for high strength applications such as shafts, forgings and high pressure steel cylinders. The mentioned steel is used in a variety of microalloying by Nb, Ti, V, N, respectively of those elements combinations. In this presented paper, three different microalloyed (by N and V) heats of mentioned steel were studied. Three heat treatment modes were applied. The first mode was based on heating at 700 °C, subsequent quenching and tempering at 470 °C. In the second and the third mode the material was heated at 890 °C and subsequently different controlled cooling process followed in both modes. Microstructural and microfractographic analyses compared with found mechanical properties were part of the solution.


AISI 4135, heat treatment, control rolling, microstructure, mechanical properties

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