| 제목 |
자동차엔진용 금속기 복하재료의 피로균열거동에 관한 연구 |
| 분야 |
재료 및 RECYCLE |
| 언어 |
Korean |
| 저자 |
박원조(경상대학교), 정재욱(경상대학교), 허선철(경상대학교), 이해우(삼성중공업), 부명환(전력연구원) |
| Key Words |
Metal matrix composites(금속기 복합재료), Squeeze casting(가압주조), Sinusoidal wave(정현파), Stress intensity factor range(응력확대계수범위), Fatigue crack growth(피로균열진전) |
| 초록 |
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. |
| 원문(PDF) |
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