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采用快速凝固/粉末冶金法成功地研制出Al-7.09%Fe-1.34%Mo-1.45%Si(FMS0714)合金及其金属/金属复合体材料FMS0714/15%Al和FMS0714/10%(Zn-30%Al),考察了其组织、拉伸性能、阻尼性能和密度,并同锻铝LD7CS合金进行了对比。结果表明:FMS0714合金本身就具有较好的拉伸与阻尼性能。添加纯Al和Zn-30%Al合金粉均使其强度下降,而延伸率略有改善。在20~250℃范围内,FMS0714/15%Al的阻尼性能与FMS0714合金的相近;而FMS0714/10%(Zn-30%Al)的阻尼性能优于FMS0714/15%Al和FMS0714合金,室温值达8×10-3,接近高阻尼金属或合金的阻尼水平。这三种材料的密度均小于3.1g/cm3,且拉伸强度和阻尼性能均明显优于LD7CS合金,可用来代替飞机上现行采用的LD7CS合金,用于需要减振的场合。
Al-7.09% Fe-1.34% Mo-1.45% Si (FMS0714) alloy and its metal / metal composites FMS0714 / 15% Al and FMS0714 / 15 were successfully fabricated by rapid solidification / 10% Zn-30% Al. The microstructure, tensile properties, damping properties and density of the as-cast LD7CS alloy were investigated. The results show that the FMS0714 alloy itself has good tensile and damping properties. Addition of pure Al and Zn-30% Al alloy powder all decreased the strength and the elongation slightly improved. The damping properties of FMS0714 / 15% Al are similar to those of FMS0714 alloy in the temperature range of 20 ~ 250 ℃. The damping properties of FMS0714 / 10% (Zn-30% Al) are better than those of FMS0714 / 15% Al and FMS0714. Up to 8 × 10-3, close to the high damping metal or alloy damping level. The density of these three materials are less than 3.1g / cm3, and tensile strength and damping performance are significantly better than the LD7CS alloy can be used instead of the aircraft currently used LD7CS alloy for vibration reduction applications.