Abstract
A step-by-step report on the results of ultrasonic testing of the antifriction surfacing of plain bearing shells in the scope of technology development for plasma-powder surfacing of babbitt alloys is presented. The revealed correlation between wear resistance and porosity of the antifriction surfacing structure is described. The analysis of modern methods and means of porosity testing is carried out. A hypothesis is put forward about the need for ultrasonic testing of the antifriction surfacing porosity in order to increase the service life of the plain bearing shells.
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