The resistance to surface and subsurface damage during lubricated rolling-sliding wear of a carburised low-alloy sintered steel and the effect of shot peening were investigated. The formation of both contact fatigue cracks and of brittle tensile cracks may be predicted by a theoretical model that was experimentally validated. Carburising is effective in increasing the resistance to contact fatigue, but pores in a hard and brittle matrix may act as pre-existing cracks. Shot peening increases the contact fatigue resistance since compressive residual stresses oppose the nucleation of surface cracks.
Damage phenomena in lubricated rolling-sliding wear of a gas carburised 0.85%Mo low-alloyed sintered steel: theoretical analysis and experimental verification / Tesfaye, S.; Molinari, A.; Pahl, W.. - In: POWDER METALLURGY. - ISSN 0032-5899. - 60:5(2017), pp. 321-329. [10.1080/00325899.2017.1331817]
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Titolo: | Damage phenomena in lubricated rolling-sliding wear of a gas carburised 0.85%Mo low-alloyed sintered steel: theoretical analysis and experimental verification | |
Autori: | Tesfaye, S.; Molinari, A.; Pahl, W. | |
Autori Unitn: | ||
Titolo del periodico: | POWDER METALLURGY | |
Anno di pubblicazione: | 2017 | |
Numero e parte del fascicolo: | 5 | |
Codice identificativo Scopus: | 2-s2.0-85020309064 | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1080/00325899.2017.1331817 | |
Handle: | http://hdl.handle.net/11572/343766 | |
Citazione: | Damage phenomena in lubricated rolling-sliding wear of a gas carburised 0.85%Mo low-alloyed sintered steel: theoretical analysis and experimental verification / Tesfaye, S.; Molinari, A.; Pahl, W.. - In: POWDER METALLURGY. - ISSN 0032-5899. - 60:5(2017), pp. 321-329. [10.1080/00325899.2017.1331817] | |
Appare nelle tipologie: | 03.1 Articolo su rivista (Journal article) |