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1542 |
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Tuesday, June 03, 2008, Room 08 9:50 AM Fe-based Materials 1 Due to the worldwide rise of material costs Fe-based materials are becoming more and more a suitable alternative to established hard phase coatings |
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Wear resistant plasma-transferred-arc coatings for lightweight structures |
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Ondrej Racek* / Caterpillar, Inc., USA Jason Sebright / Technology & Solutions Division, Caterpillar Inc., USA Brad Beardsley/ Technology & Solutions Division, Caterpillar Inc., USA |
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Ground engagement tools of earthmoving machinery are exposed to severe corrosion-wear environments. The amount of removed material is significant; therefore, the construction material, typically low alloy steel, needs to be thick enough to provide the appropriate structural strength when the cross-section becomes thinner due to the wear. Wear resistant materials can be welded on the steel structures using the metal-inert-gas (MIG) and plasma-transferred-arc (PTA) methods. The protective layer will extend the wear life of the ground engagement tools and the cross section of the underlying material can be reduced. The reduced overall weight will result in a lower fuel consumption and carbon footprint. Several materials including alloys based on glass forming compositions were tested using laboratory and field test. The present study was a part of the Structurally Integrated Coatings for Wear and Corrosion project supported by the United States Department of Energy (DOE) under the Cooperative Agreement No. DE-FC36-04GO14037. |