Manufacturing Technology 2019, 19(1):77-81 | DOI: 10.21062/ujep/247.2019/a/1213-2489/MT/19/1/77

Influence of Heat Treatment on the Change of Al-Si Coating Properties at Ultra-high Strength Sheets

Michaela Kolnerova, Jiří Sobotka, David Koreček, Pavel Solfronk
Faculty of Mechanical Engineering, Technical University of Liberec. Studentská 1402/2, 461 17 Liberec Czech Republic

Paper deals with the evaluation of protective coating surface layer Al-Si at boron steel 22MnB5. Parts from these steels are used at the car-body design. Such parts are produced by hot forming technology that means not only higher requirements on material but also on the surface layer. Coatings are used to protect surface against oxidation during heating and also support the own forming process inside the tools. In this paper is evaluated the protective layer change during heat treatment - heating in furnace (8, 12 and 16 min). Performed microscopic analysis of Al-Si surface layer proves the thermal regime influence on the change of coating properties.

Keywords: Heat Treatment, 22MnB5, AlSi Coating, Surface Layer, AHSS
Grants and funding:

Technical University of Liberec (TUL) as part of the Student Grant Contest "SGS 21122" with the support of the Specific University Research Grant, as provided by the Ministry of Education, Youth and Sports of the Czech Republic.

Published: February 1, 2019  Show citation

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Kolnerova M, Sobotka J, Koreček D, Solfronk P. Influence of Heat Treatment on the Change of Al-Si Coating Properties at Ultra-high Strength Sheets. Manufacturing Technology. 2019;19(1):77-81. doi: 10.21062/ujep/247.2019/a/1213-2489/MT/19/1/77.
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