Microstructural and abrasion wear characteristics of laser-clad tool steel coatings
| Autor: | H. Pajukoski, Leo Hyvärinen, Petri Vuoristo, Jonne Näkki, Jari Tuominen |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Abrasion (mechanical) Vanadium chemistry.chemical_element 02 engineering and technology engineering.material 01 natural sciences Carbide 0103 physical sciences Materials Chemistry Composite material computer.programming_language 010302 applied physics Austenite Abrasive Metallurgy Surfaces and Interfaces 021001 nanoscience & nanotechnology Condensed Matter Physics Surfaces Coatings and Films chemistry Scratch Martensite Tool steel engineering 0210 nano-technology computer |
| Zdroj: | Surface Engineering. 32:923-933 |
| ISSN: | 1743-2944 0267-0844 |
| DOI: | 10.1080/02670844.2016.1180496 |
| Popis: | Several different tool steel grades were deposited on mild steel by the laser-cladding process with coaxial powder feeding. With bidirectional scanning pattern, most of the grades were deposited crack-free with hardness up to 1000 HV without additional preheating. In a 3-body abrasion wear study, the laser clad Ralloy® WR6 with significant portion of retained austenite exhibited superior abrasive wear resistance compared with the predominantly martensitic tool steel coatings (M2, M4, H13, HS-23, HS-30) and the reference material, Raex® Ar500 wear resistant steel. The abrasion wear resistance of austenitic–martensitic WR6 tool steel was further enhanced by the external addition of 20% volume percentage of relatively large (45–106 µm) vanadium carbides. In single point scratch tests, predominantly martensitic tool steels outperformed austenitic–martensitic tool steels and wear resistant steel. The differences in wear performances were explained by different wear mechanisms and types of contact between the a... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
| Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |