Acta Univ. Agric. Silvic. Mendelianae Brun. 2013, 61(1), 25-38 | DOI: 10.11118/actaun201361010025

Basic mechanical properties of layered steels

Michal Černý1, Josef Filípek1, Pavel Mazal2, Petr Dostál1
1 Department of Engineering and Automobile Transport, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
2 Institute of Machine and Industrial Design, University of Technology Brno, Technická 2, 616 69 Brno, Czech Republic

This article deals with identifying attributes of layered steel materials (damask steel) with the help of mechanical tests. Experimentally verify basic mechanical properties of layered steel and subsequently assessed it in comparison with the values obtained for the classic steel materials. In conclusion, there are listed the possibilities of using multilayer steel materials in technical practice, depending on the economics of production.
The damask steel was prepared by forge welding from a packet consisting of 17 layers (9 layers of tool steel 19 133 (ČSN) with the thickness of 6 mm and 8 layers 80NiCr11 steel in the form of saw bands with the thickness of 1.2 mm. The packet was cut into 8 parts, folded 3 times and forged together, which provided damask steel with 136 layers. The resulting steel bars were used to make semi-finished products with the approximate dimensions of the test specimens. For evaluation of mechanical properties were applied the following tests: tensile test, Charpy impact test, hardness and microhardness measurements.
The results of tests proved that the properties of damask steel are dependent not only on the direction led impact quality forge weld layers and content iof nhomogeneities in the place of discord, but also on the quenching and tempering temperature, resp. on the choice of quenching bath, which determine the final structure of steel and the resulting hardness, respectively microhardness.

Keywords: damask steel, mechanical properties of materials, tensile test, impact bending test, hardness tests
Grants and funding:

The research has been supported by the project IP 10/2010 "Proportional monitoring of the Acoustic emission in crypto-conditions", financed by internal grant agency (IGA) Mendel University in Brno, Faculty of Agronomy. Above mentioned results were created also as a part of solution of the project MPO CR FR-TI1/371 "Integrated system of monitoring of selected machine parts" and supported by European Regional Development Fund in the framework of the research project NETME Centre under the Operational Programme Research and Development for Innovation (reg. No. CZ. 1.05/2.1.00/01.0002).

Received: September 18, 2012; Published: April 8, 2013  Show citation

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Černý, M., Filípek, J., Mazal, P., & Dostál, P. (2013). Basic mechanical properties of layered steels. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 61(1), 25-38. doi: 10.11118/actaun201361010025
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