| Issue |
Rev. Met. Paris
Volume 99, Number 2, February 2002
Science et Génie des Matériaux
|
|
|---|---|---|
| Page(s) | 135 - 144 | |
| DOI | https://doi.org/10.1051/metal:2002187 | |
| Published online | 25 October 2002 | |
Laser surface alloying of a chromium-molybdenum steel: mechanical behaviour improvement by melting of boron coatings
Surface laser alloying can improve mechanical behaviour, particularly hardness, wear or corrosion resistance. Here, different boron coatings - boron carbides, boron, boron-iron or zirconia-boron mixtures - on a chromium-molybdenum steel are laser melted; the laser tracks show rather homogeneous microstructures; hardness increases with boron content and can reach about 1200 HV over a one millimeter depth with 5.7% boron, without the formation of the brittle phase FeB.
© La Revue de Métallurgie, 2002
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