抄録
Based on the results of our previous research, we scrutinized the wear phenomenon of the heat treated titanium cast iron with eutectic graphite structure. We tested the wear of the cast iron which was heat treated, such as annealing, hardening, tempering or isothermal treatment under the constant conditon. As the result, it was found that the anneald cast iron had the supassing wear resistance at about 550°C and hardened or tempered cast iron had good wear resistance at 200°C to 300°C. However, we came to a conclusion that the isothemally treated cast iron was much superior in the wear resistance to the cast iron treated in two methods above mentioned.