Abrasive wear resistance of Fe$$_{{3}}$$Al and Stellite 6 coatings for the protection of valve faces

Abstract Developing a technology that increases the service life of valve seats in CNG/LNG-powered vehicles requires appropriate selection material and its application technology. Commercially used seat materials show accelerated wear under operating conditions, especially natural gas vehicle engines. The authors developed new technological concept to protect vehicles. Two were research: Stellite 6 alloy Fe $$_{3}$$ 3 Al intermetal. A commonly for combustion engines is 6. proposed coating protection internal article compares abrasive resistance these materials. abrasion tests performed on T-11 pin-on-disc tester, counter-sample was steel S235JR. test conditions similar those prevailing during operation valves head engine, without influence temperature. results indicate Fe3Al intermetallic compound characterised by lower coefficient friction intensity than exploitation confirm phase prospective be as protective made mathematical model newly created surface layers hypotheses regarding mechanisms layers.