The Oxidation Effect on the Exhaust Valve Seat Wear 912509

Effects of the copper infiltration and the oxide formation on the wear behavior of the sintered exhaust valve seat material were investigated by the pin - on - disc wear test. By the copper infiltration, the wear properties were remakably improved, on the contrast, the oxide deteriorated the wear resistance. The friction coefficient and specific wear rate decreased with the applied load. The dominant wear mechanism was suggested as follows; the spalling of the bulk debris in the non-infiltrated sample and the mild oxidational wear in the infiltrated.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 43% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.