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AZ31 마그네슘합금의 피로균열전파거동에 미치는 영향 인자

Factors Affecting Fatigue Crack Propagation Behavior in AZ31 Magnesium Alloy

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주제분류기계공학

초록

The objectives of this paper are to evaluate the factors affecting the fatigue crack propagation(FCP) behavior in AZ31 magnesium alloy. FCP experiments have been performed on the specimens of AZ31 magnesium alloy under various conditions such as a loading frequency, a specimen thickness, a maximum fatigue load, and a load ratio and the obtained results were analyzed to find the influence factors on the FCP behavior in magnesium alloy. It is necessary to consider the influence factors for the design and the maintenance of lightweight structures. The correlation between the crack growth rate exponent and the crack growth rate coefficient, which are FCP behavior parameters, was also analyzed and the regression model was presented.

Abstract

The objectives of this paper are to evaluate the factors affecting the fatigue crack propagation(FCP) behavior in AZ31 magnesium alloy. FCP experiments have been performed on the specimens of AZ31 magnesium alloy under various conditions such as a loading frequency, a specimen thickness, a maximum fatigue load, and a load ratio and the obtained results were analyzed to find the influence factors on the FCP behavior in magnesium alloy. It is necessary to consider the influence factors for the design and the maintenance of lightweight structures. The correlation between the crack growth rate exponent and the crack growth rate coefficient, which are FCP behavior parameters, was also analyzed and the regression model was presented.

참고문헌 (14)

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  3. 유명한, "AM60 합금 내 MWCNT 용탕 분산처리를 통한 기계적 물성 거동에 관한 연구", 한국기계기술학회지, 18(6), pp.918~923 (2016), 한국기계기술학회[DOI]
  4. K. Tokaji, "Fatigue Crack Propagation and Fracture Mechanisms of Wrought Magnesium Alloys in Different Environments", International Journal of Fatigue, 31(7), pp.1137~1143 (2009)
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  14. S. S. Choi, "Effect of maximum load on fatigue crack propagation behavior in Mg alloy under constant amplitude loading", Proceedings of the KSMTE Spring Conference 2010, pp.62~62 (2010)

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