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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2014.1
- 수록면
- 757 - 763 (7page)
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초록· 키워드
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In this study an attempt was carried out to determine the effect of production temperature on the mechanicalproperties and energy absorption behavior of closed-cell A356 alloy foams under uniaxial compressiontest. For this purpose, three different A356 alloy closed-cell foams were synthesized at three different castingtemperatures, 650 °C, 675 °C and 700 °C by adding the same amounts of granulated calcium as thickeningand TiH2 as blowing agent. The samples were characterized by SEM to study the pore morphologyat different foaming temperatures. Compression tests of the A356 foams were carried out to assess theirmechanical properties and energy absorption behavior. The results indicated that increasing the foamingtemperature from 650 °C to 675 °C and 700 °C reduces the relative density of closed cell A356 alloys by18.3% and 38% respectively and consequently affects the compressive strength and energy absorption ofcellular structures by changing them from equiaxed polyhedral closed cells to distorted cells. Also at 700 °Cfoaming temperature, growth of micro-pores and coalescence with other surrounding pores leads to severalbig voids.
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참고문헌 (18)
참고문헌 신청
HP. Degischer. / 2002 / Handbook of Cellular Metals Production, Processing, Applications. 1st Ed / WILEY-VCH Verlag GmbH
W. Deqing. / 2006 / Mater. Sci. Eng. A 420:235
R. E. Raj. / 2008 / Int. J. Adv. Manuf. Tech 38:605
L. A. Bin. / 2012 / Trans Nonferr. Met. Soc. China. 22:S33
X. Q. Cao. / 2006 / Trans. Nonferr. Met. Soc. China 16:351
W. Deqing. / 2006 / Mater. Sci. Eng. A 420:235
R. E. Raj. / 2008 / Int. J. Adv. Manuf. Tech 38:605
L. A. Bin. / 2012 / Trans Nonferr. Met. Soc. China. 22:S33
X. Q. Cao. / 2006 / Trans. Nonferr. Met. Soc. China 16:351
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