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Liu Yongzhang, Xue Yufang, Yang Jincheng, Yang Gencang. HIGH-FREQUENCY INTERNAL FRICTION BEHAVIOR OF PARTICLE REINFORCED MMCs PREPARED BY SPRAY CO-DEPOSITION[J]. Powder Metallurgy Technology, 1999, 17(1): 48-51.
Citation: Liu Yongzhang, Xue Yufang, Yang Jincheng, Yang Gencang. HIGH-FREQUENCY INTERNAL FRICTION BEHAVIOR OF PARTICLE REINFORCED MMCs PREPARED BY SPRAY CO-DEPOSITION[J]. Powder Metallurgy Technology, 1999, 17(1): 48-51.
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HIGH-FREQUENCY INTERNAL FRICTION BEHAVIOR OF PARTICLE REINFORCED MMCs PREPARED BY SPRAY CO-DEPOSITION

  • State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xian 710072

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  • Revised Date: July 17, 1998
  • Available Online: July 19, 2021
    Graphical Abstract
    • Abstract
  • The effects of graphite and SiC particles on the resultant damping behavior of the spray deposited high silicon alloy ZA27 were examined by Sound frequecy internal friction apparatus. The experimental results show that the damping capacities of the MMCs reinforced by SiC and Gr particulates are 3.90 and 3. 381 times more respectively than tha of the ascast alloy ZA27 at 30℃. After extrusion, the damping capacities of the MMCs improve a tittle, but the difference between them decreased a lot. The operative damping mechanisms were discussed in ligh of the data obtained from characterization of microstructure.
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