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Vol.46, No.8, 538 ~ 545, 2008
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| Title |
| A study on the Thermal Fatigue Properties of Mg/Mg-Al18B4O33 Functionally Graded Material by Thermal Cycling Test and Finite Element Method |
| 이욱진 Wook Jin Lee , 양준성 Jun Seong Yang , 최계원 Kye Won Choi , 박용하 Yong Ha Park , 박봉규 Bong Gyu Park , 박익민 Ik Min Park , 박용호 Yong Ho Park |
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| Abstract |
| MMCs were manufactured in two different forms. One was two-layered non FGM composite and the other was four-layered FGM composite. The matrix used in this study was AZ31 magnesium alloy and the reinforcement was Al18B4O33. The composite materials contained reinforcement fibers with a volume fraction of 0, 15, 25 and 40%. Squeeze infiltration method was used for the fabrication of each block. The thermal properties of the FGM alloy and composite joints were studied by conducting thermal cycling tests. The numerical calculation (the finite elements method-FEM) results exhibited a good agreement with the experimental results. Thermal stresses induced by thermal cycling test were clearly reduced in the functionally graded materials. |
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| Key Words |
| Magnesium, Al18B4O33, MMC, FGM, Thermal cycling, FEM |
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