A simple in-situ method for studying wear of materials has been developed.
This technique involves photographically imaging the specimen under test as
a function of wear cycles and subtracting the initial image for identifica
tion of wear sites and quantification of wear. From the differential images
, the level of wear is determined by calculating the surface area of the wo
rn region. This method also allows one to visualize and gain further unders
tanding of the wear process by viewing the series of images as time-lapsed