Abstract
Laser cladding is an additive manufacturing method for producing functionally graded materials by coating a metallic substrate with an alloy possessing superior properties. In order to prevent fracture due to the wheel-rail contact, it is proposed to clad rail track components of high value with alloys of superior properties. With this in mind, it is critical to evaluate the residual stress state of the components after cladding and its subsequent response to cyclic loading. Two materials have been tested within this research; a cobalt-based alloy and a martensitic steel. The study has shown that high residual stresses are generated by laser cladding rail material, that they do not exhibit shakedown upon cyclic loading and that poor choice of laser cladding parameters can significantly reduce component lifetime.
| Original language | English |
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| Title of host publication | ICF 2017 - 14th International Conference on Fracture |
| Pages | 404-405 |
| Number of pages | 2 |
| Publication status | Published - 2017 |
| Externally published | Yes |
| Event | International Congress on Fracture 2017 - Rhodes, Greece Duration: 18 Jun 2017 → 20 Jun 2017 Conference number: 14th https://www.icfweb.org/icf/ (Website) |
Conference
| Conference | International Congress on Fracture 2017 |
|---|---|
| Abbreviated title | ICF 2017 |
| Country/Territory | Greece |
| City | Rhodes |
| Period | 18/06/17 → 20/06/17 |
| Internet address |
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