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Lu, P.
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Publications (4/4 displayed)
- 2019Laser Cladding of Rail; The Effects of Depositing Material on Lower Rail Gradescitations
- 2019Determining interface structures in vertically aligned nanocomposite films
- 2018Laser cladding of rail; the effects of depositing material on lower rail grades
- 2004Growth of rhombohedral B12P2 thin films on 6H-SiC(0001) by chemical vapor deposition
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article
Laser Cladding of Rail; The Effects of Depositing Material on Lower Rail Grades
Abstract
This paper presents a study comparing the wear performance of laser clad rails. A grade of martensitic stainless steel (MSS) was deposited on two substrate materials: The European standard grade rail steel R260, and a lower grade rail steel R200. A twin-disc method has been used to simulate the contact of wheel and rail under closely controlled conditions. Although cladding on a lesser grade of rail has an effect on the hardness and wear performance of the clad layer (due to dilution), the resulting wear performance of the clad layer assessed using this approach is still vastly improved over R260 material alone.