研究論文
球状黒鉛鋳鉄のすべり摩耗特性と摩擦面温度との関係
1978 年 50 巻 1 号 p. 32-37
詳細
1978 年 50 巻 1 号 p. 32-37
Both the temperature of real contacting asperities (the flash temperature) and the mean temperature of the apparent sliding surface were considered. It is assumed that the former is related to the formation of adhesive junction and the strength of its interface, while the later is a guideline of the temperature at site of adhesive junction to be sheared. Regardless of sliding condition and matrix structure, when the flash temperature is from 300°C to 500°C, the mechanical destructive wear, which is one form of the severe wear, appears and this wear rate slightly decreases with rise in the mean temperature. That the range of sliding speed where the mechanical destructive wear occurs increases with the amount of ferrite in the matrix structure depends on the fact that the sliding speed for the flash temperature to become 300°C−500°C extends because of decrease in hardness of the matrix structure. Drastic seizure appears when the mean temperature is above 400°C. There is a close relation between seizure and mean temperature and they depend on each other.
