Abstract
The results of the wear test of steel on this subject were reported in the previous papers. In this paper,the results of cast iron were reported. The results obtained were summarized as follows: (1) Both in one-way and in reciprocating friction, the wear increases in proportion to the increase of pressure, but is independent of the friction velocity. This tendency is different from the behavior shown by steel. (2) The higher the friction velocity, the smaller the ratio of the increase of wear with the increase of pressure. (3) The critical pressure beyond which heavy wear occurs is generally lower for reciprocating friction than for one-way friction. (4) Consequently, in the range of this experiment, the wear phenomena of cast iron in reciprocating friction may be approximately predicted from the results of wear test of one-way friction.
