| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1660122 | Surface and Coatings Technology | 2009 | 7 Pages |
Abstract
Molybdenum and chromium coatings were deposited on AISI 4130 steel using the Laser Induced Surface Improvement1 (LISIâ¢) process. In this process a mixture of precursor material is pre-placed on the substrate and then laser melted, resulting in the formation of a thin surface layer of alloy on the underlying material. First, a chromium coating was deposited on steel using the Cr-CrB2 eutectic composition, and subsequently a molybdenum coating using the Mo-MoB eutectic composition was deposited on the chromium layer. Both the coatings have been individually characterized and compared using scanning electron microscope, energy dispersive spectrometry, Vicker's hardness, X-ray diffraction, wear and erosion. The chromium layer exhibited superior erosion resistance (ASTM G76) while the molybdenum-on-chromium coating performed better in sliding wear (ASTM G77).
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Authors
Deepak Rajput, Kathleen Lansford, Lino Costa, William Hofmeister,