摘要
By investigating the thermal expansion properties of three quasicrystalline alloys Al 65 Cu 20 Cr 15 quenched, Al 65 Cu 20 Cr 15 cast and Al 65 Cu 20 Fe 15 cast particles reinforced Al matrix composites from 25 ℃ to 500 ℃, the thermal expansion coefficients of three quasicrystalline alloys were theoretically estimated. The results show that the thermal expansion coefficients of the composites are much lower than that of pure Al, and the thermal expansion coefficients of the composites reinforced by Al Cu Cr quasicrystalline particles are lower than those of the composites reinforced by Al Cu Fe quasicrystalline particles. According to estimating, quasicrystalline alloys have negative thermal expansion coefficients, and the thermal expansion coefficients of Al Cu Cr quasicrystalline alloys are lower than those of Al Cu Fe quasicrystalline alloys. In the alloys, the more the qusicrystalline content, the lower the thermal expansion coefficient.
By investigating the thermal expansion properties of three quasicrystalline alloys Al 65 Cu 20 Cr 15 quenched, Al 65 Cu 20 Cr 15 cast and Al 65 Cu 20 Fe 15 cast particles reinforced Al matrix composites from 25 ℃ to 500 ℃, the thermal expansion coefficients of three quasicrystalline alloys were theoretically estimated. The results show that the thermal expansion coefficients of the composites are much lower than that of pure Al, and the thermal expansion coefficients of the composites reinforced by Al Cu Cr quasicrystalline particles are lower than those of the composites reinforced by Al Cu Fe quasicrystalline particles. According to estimating, quasicrystalline alloys have negative thermal expansion coefficients, and the thermal expansion coefficients of Al Cu Cr quasicrystalline alloys are lower than those of Al Cu Fe quasicrystalline alloys. In the alloys, the more the qusicrystalline content, the lower the thermal expansion coefficient.
出处
《中国有色金属学会会刊：英文版》
CSCD
2004年第1期152-155,共4页
Transactions of Nonferrous Metals Society of China
基金
Project( 60 0 710 10 )supportedbytheNaturalScienceFoundationofChina
关键词
Al-Cu-Cr合金
准晶
热膨胀系数
热分析
铝合金
Al 65 Cu 20 Cr 15 alloy
quasicrystalline alloy
composite
thermal expansion coefficients
