MICROSTRUC TURE AND PROPERTIES OF IN-SITU TiC PARTICULATE REINFORCED Al-Si ALLOY COMPOSITE

Acta Metall Sin

1994, Vol. 30

Issue (13): 39-44 DOI:

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MICROSTRUC TURE AND PROPERTIES OF IN-SITU TiC PARTICULATE REINFORCED Al-Si ALLOY COMPOSITE

Wang Zidong; Li Qingchun(Harbin Institute of Technology)Li Chunyu; Zhang Lusan; Yu Guifu(Beijing Institute of Aeronutical Materials)

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Wang Zidong; Li Qingchun(Harbin Institute of Technology)Li Chunyu; Zhang Lusan; Yu Guifu(Beijing Institute of Aeronutical Materials). MICROSTRUC TURE AND PROPERTIES OF IN-SITU TiC PARTICULATE REINFORCED Al-Si ALLOY COMPOSITE. Acta Metall Sin, 1994, 30(13): 39-44.

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Abstract A novel technique to make in-situ TiC Particulate in an Al-5.6Wt%Si matrix has been developed through direct-contact reaction.An Al-Ti-C compact is pushed into Al-Si alloy at 750℃. The titanium and carbon react directly to form fine TiC particulates (0.1-1.0μm) in liquid Al-Si alloy.The structures indicate that TiC enters into α-Al matrix during solidification and α-Al matrix is reinforced by the dispersion of TiC particulates. This new way to produce cast metal matrix composites is of great future.

Key words: cast Al martrix composite in-situ reaction microstructure

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1994/V30/I13/39

1BrupbacerJMetal．U．S．patent4710348,19872WestwoodARC．MetallTransA．1988;19A:7493RappRA,ZhengXuejin,MetallTransA,1991;22A:30714KanuryAM,MetallTransA,1992;23A:23495UhlmannDB,ChalmersB．JApplPhys,1964;35:29866ZubkoAM,LobanovVG,NikonovaVV．SovPhysCrystallogr,1973;19:2397ShangguanD,AbujaS,StefanescuDM．MetallTransA,1992;23A:6698丁文江,余滋璋,徐小平,邓祖威．材料科学进展,1992;6:269

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