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위명용,박익흥 충북대학교 건설기술연구소 1993 建設技術論文集 Vol.12 No.2
Microstructure, hardness, tensile strength and wear characteristics of gray cast iron with pearlite matrix, in the range of phospor concentration from 0.1∼0.96 wt%, were examined. The results were as follows : 1) As the content of phospor increases, the amount of steadite and hardness increase. 2) As the content of phospor increases, the tensile strength increases up to 0.3wt%P but gradually decreases beyond that point. 3) As more phospor is added, wear amount decreases and as content load increases, wear amount increases. In high load state, effective wear resistence can be obtained at around 0.8wt% and in medium and low load state, 0.3wt%P is the optimal level 4) As the hardness of rotor increase, wear amount increases. Wear amount decreases acutely up to 0.3wt%P but, beyond that point, it decreases slow down. Therefore effective wear resistance ran be obtained at around 0.3wt%P.