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ORIGINAL PAPER
Influence of diffusion boriding and laser boriding on corrosion resistance Hardox 450 steel
1
Industrial Institute of Agricultural Engineering, ul. Starołęcka 31, 60-963 Poznań, Poland
2
Institute of Materials Science and Engineering, Poznan University of Technology, Poland
3
Institute of Mechanical Technology, Poznan University of Technology, Poland
Journal of Research and Applications in Agricultural Engineering 2014;59(2):40-45
KEYWORDS
ABSTRACT
The article presented an influence of diffusion boriding and laser boriding on microstructure, microhardness and corrosion
resistance of Hardox 450 steel. After the boron modification process of Hardox 450 steel was obtained an increase result of
microhardness and resistance to corrosion. After the diffusion boriding obtained needle-like microstructure of
microhardness 1800-1500 HV0.1. Whereas after laser boriding microstructure was consisted of a remelted zone (MZ), heataffected
zone (HAZ) and core. In the remelted zone enriched in boron the microhardness was about 1600 HV 0.1. Corrosion
resistance tests showed, that the higher corrosion resistance in solutions of pH = 3.5 and pH = 7.0 have a diffusion
boriding layers, whereas in the pH = 11.0, the laser boriding layers.
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| eISSN: | 2719-423X |
| ISSN: | 1642-686X |
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