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자동차엔진용 금속기 복합재료의 피로균열거동에 관한 연구
박원조(Wonjo Park),허선철(Sunchul Huh),정재욱(Jaewoo Jung),이해우(Haewoo Lee),부명환(Myunghwan Boo) 한국자동차공학회 2003 한국 자동차공학회논문집 Vol.11 No.5
Metal matrix composites had generated a lot of interest in recent time because of their high specific strength and stiffness in specific properties. It was also highlighted as the material of frontier industry because strength, heat-resistance, corrosion-resistance and wear-resistance were superiored. In this study, the strength properties of AI18B4O33/AC4CH composites were represented mixing the binder of SiO2. It was also fabricated by squeeze casting. AI_18B_4O_33/AC4CH was fabricated at the melt temperature of 760℃, the perform temperature of 700℃ and mold temperature of200℃ under the pressure of 83.4MPa. Consequently, fatigue life was observed roughly in the order of AC4CH) nobiner) SiO_2, independently on crack propagation direction and stress ratio.<br/>