Surface activation technique in the study of car engine components wear

Wear measuring technique by means of charged particle surface activation in a cyclotron has been developed for some components of internal-combustion engines. The injection pump piston pusher rollers wear was investigated as well as that of valve pushers. Irradiation rigs have been developed providing both sufficient heat removal at the irradiation and the possibility of simultaneous processing of several component units. The rollers and pushers wear at various lubrication modes was studied as well as the impact of different lubricating oils. The wear level was estimated via comparison of the used up and reference oil activity