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Engineering Review : International journal for publishing of original researches from the aspect of structural analysis, materials and new technologies in the field of mechanical engineering, shipbuilding, fundamental engineering sciences, computer sciences, electrical engin, Vol. 28 No. 2, 2008.

Original scientific paper

MONOTONIC BEHAVIOUR OF NORMALISED AND QUENCHED AND TEMPERED STEEL 42CrMo4

Robert BASAN orcid id orcid.org/0000-0002-3895-5051 ; Faculty of Engineering, University of Rijeka, Rijeka, Croatia
Robert KUNC ; Faculty of Mechanical Engineering, University of Ljubljana, Ljubljana, Slovenia
Marina FRANULOVIĆ ; Faculty of Engineering, University of Rijeka, Rijeka, Croatia

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Abstract

The presented work is concerned primarily with experimental determination of the behaviour of normalised and quenched and tempered low-alloy steel 42CrMo4 (AISI4140) subjected to monotonic uniaxial tensile loading and determination of its monotonic parameters. Experiments were performed on standard specimens using a servo-hydraulic testing machine at room temperature. The behaviours of materials with differing hardnesses were analyzed and compared. After determination of principal monotonic parameters values, correlation was confirmed to exist between tempering temperature, i.e. achieved materials’ hardness, and the monotonic yield strength as well as the ultimate strength. Simple expressions are proposed for fast estimation of cited monotonic properties from hardness.

Keywords

monotonic properties; material behaviour; steel 42CrMo4; hardness

Hrčak ID:

30615

URI

https://hrcak.srce.hr/30615

Publication date:

19.12.2008.

Article data in other languages: croatian

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