PT Journal
AU Kolnerova, M
   Sobotka, J
   Korecek, D
   Solfronk, P
TI Influence of Heat Treatment on the Change of Al-Si Coating Properties at Ultra-high Strength Sheets
SO Manufacturing Technology Journal
PY 2019
BP 77
EP 81
VL 19
IS 1
DI 10.21062/ujep/247.2019/a/1213-2489/MT/19/1/77
DE Heat Treatment; 22MnB5; AlSi Coating; Surface Layer; AHSS
AB 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.
ER