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The reciprocating sliding wear behavior of high-silicon bainitic steels has been studied on microstructures obtained from two alloys containing 0.3 and 1.0wt% C, which were isothermally transformed between 200 and 425°C. Results show an order of magnitude improvement in the wear resistance of the nano-scaled bainitic structures with respect to the ultra-fine with similar hardness values. The scale...
Rail is the most valuable asset owned by railroads the AAR reported that only in North America the annual expenditure for rail repair and replacement is approximately $2.6 billion. In the last 50 years the railways and rail manufacturers have improved rail performance. Modern rail metallurgies have achieved a successful increased in hardness from 248 Hardness Brinell (HB) to more than 400HB. This...
It is known that manganese steels respond well in situations where a high wear resistance is required.The manganese content provides an austenitic structure with both wear resistance and high tenacity values under wear. In its working life, this austenitic structure becomes martensitic as a result of impact and the phenomenon of friction, thus explaining an increase in hardness and its response under...
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