搅拌铸造法制备SiC颗粒增强镁-锌-锆合金基复合材料的阻尼性能
Damping Capacity of SiC Particles Reinforced Mg-Zn-Zr Alloy Composites Prepared by Stir Casting
摘 要
采用搅拌铸造法制备了SiC颗粒增强Mg-2.1%Zn-0.7Zr合金基复合材料,采用LMR-1型低频力学弛豫谱测试系统研究了基体合金及复合材料的阻尼性能与振幅和温度的变化关系.结果表明:室温下复合材料的阻尼性能随SiC合金的增加略有下降,在25~250℃时复合材料的内耗值与基体合金的内耗值基本相当:当温度高于300℃时,复合材料的阻尼性能明显优于基体合金的:基体合金及其复合材料的阻尼机制均可用G-L理论解释.
SiC颗粒
阻尼性能
位错
magnesium matrix composite
SiC particle
damping capacity
dislocation
Abstract
SiC particles reinforced Mg-2.1%Zn-0.7%Zr alloy composites were prepared by stir casting.The damping capacity of the matrix alloy and the composites varying with amplitude and temperature was investigated by LMR-1 low-frequency torsion pendulum system.The results show that the damping capacity of the composites at room temperature decreased slightly as the increase of the SiC content.The internal friction value of the composites was the same of that of the matrix alloy when the temperature was in the range of 25-250℃.A contrary result could be obtained at the temperature higher than 300℃.The damping mechanism of the matrix alloy and the composites could be explained by G-L theory.
中图分类号 TB535.1:TG146.2:TG113.226
所属栏目 材料性能及其应用
基金项目 中国人民解放军武器装备重点基金资助项目(6140502)
收稿日期 2009/2/23
修改稿日期 2009/8/24
网络出版日期
作者单位点击查看
备注潘安霞(1986-),男,江苏盐城人,硕士研究生.
引用该论文: PAN An-xia,MA Li-qun,ZHANG Ping,XIA Ming-liu,CHENG Jiang-hui,DING Yi. Damping Capacity of SiC Particles Reinforced Mg-Zn-Zr Alloy Composites Prepared by Stir Casting[J]. Materials for mechancial engineering, 2010, 34(3): 70～73
潘安霞,马立群,张平,夏明六,程江辉,丁毅. 搅拌铸造法制备SiC颗粒增强镁-锌-锆合金基复合材料的阻尼性能[J]. 机械工程材料, 2010, 34(3): 70～73
被引情况:
【1】阮爱杰,马立群,卞亚娟,潘安霞,丁毅, "SiCp增强镁-锌-锆合金基复合材料的阻尼性能",机械工程材料 34, 62-65(2010)
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【3】YE H Z,LIU X Y.Review of recent studies in magnesium matrix composites[J].Journal of Materials Science,2004,39(20):6153-6171.
【4】张修庆,滕新营,王浩伟.镁基复合材料的阻尼性能研究[J].铸造,2004(3):176-178.
【5】PODDAR P,SRIVASTAVA V C,DE P K,et al.Processing and mechanical properties of SiC reinforced cast magnesium matrix composites by stir casting process[J].Materials Science and Engineering A,2007,460/461:357-364.
【6】权高峰.SiC颗粒增强镁基复合材料的研究[J].西安交通大学学报,1997(6):121-123.
【7】葛庭燧.非线性滞弹性内耗的实验和理论研究[J].金属学报,1997(1):9-21.
【8】GRANATO A,LCKE K.Application of dislocation theory to internal friction phenomena at high frequencies[J].Journal of Applied Physics,1956,27(6):583-805.
【9】冯端,王业林,丘第荣.金属物理[M].北京:科学出版社,1975:577-582.
【10】SRIKANTH N,GUPTA M.Determination of energy dissipation in Mg/SiC formulations using a new method of suspended beam coupled with circle fit approach[J].Scripta Materialia,2001,45(9):1031-1037.
【11】SRIKANTH N,GUPTA M.Damping characterization of Mg-SiC composites using an integrated suspended beam method and new circle-fit approach[J].Materials Research Bulletin,2002,37(6):1149-1162.
【12】哈宽富.金属力学性质的微观理论[M].北京:科学出版社,1983:202-212.
【13】WATANABE H,MUKAI T,SUGIOKA M,et al.Elastic and damping properties from room temperature to 673 K in an AZ31 magnesium alloy[J].Scripta Materialia,2004(51):291-295.
【14】顾金海,张小农,顾明元.纤维增强AZ91 镁基复合材料的阻尼性能[J].航空材料学报,2004,24(6):29-33.
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