AZ31 마그네슘합금의 피로균열전파거동에 미치는 영향 Factors Affecting Fatigue Crack Propagation Behavior in AZ31 Magnesium Alloy
한국기계기술학회지
(韓國機械技術學會誌)
제24권 제1호
(2022.02)
pp.72-77
pp.72-77
한국기계기술학회
(Korean Society of Mechanical Technology)
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.
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