METHOD OF WEAR TESTING OF MATERIALS Russian patent published in 1997 - IPC

FIELD: testing technology. SUBSTANCE: sample and countersample of cylindrical shape are made from materials of operational friction pair with relation of radii of cylinders satisfying condition R_s>R_c.s, where R_s is radius of sample; R_c.s is radius of countersample. Sample and countersample are so mounted that their axes are parallel, sample is pressed against countersample with constant rate and dependence of wear rate is found by relation , where L is friction path; N is speed of rotation of sample; l is length of chord of wear depression in direction of rotation caused by pressure in pair sample-countersample determined from ratio , where S is area of wear depression by which critical pressures of transition from one type of wear to another is determined. EFFECT: enhanced authenticity of method. 5 dwg