TiB 2/Al 4.5Cu Composite by Reaction of Mixed Salts in Molten Metal

Chen Ziyong\ Chen Yuyong\ Shu Qun\ An Geying

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TiB 2/Al 4.5Cu Composite by Reaction of Mixed Salts in Molten Metal
Issue 6, (1997)
Published： 1997 ，
DOI：

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[1]陈子勇,陈玉勇,舒群,安阁英.盐类反应制备TiB_2/Al-4.5Cu复合材料的研究[J].特种铸造及有色合金,1997(06):3-6.

Chen Ziyong\ Chen Yuyong\ Shu Qun\ An Geying. TiB 2/Al 4.5Cu Composite by Reaction of Mixed Salts in Molten Metal. [J]. Special Casting & Nonferrous Alloys (6).(1997)
[1]陈子勇,陈玉勇,舒群,安阁英.盐类反应制备TiB_2/Al-4.5Cu复合材料的研究[J].特种铸造及有色合金,1997(06):3-6. DOI：

Chen Ziyong\ Chen Yuyong\ Shu Qun\ An Geying. TiB 2/Al 4.5Cu Composite by Reaction of Mixed Salts in Molten Metal. [J]. Special Casting & Nonferrous Alloys (6).(1997) DOI：

摘要

采用Ｋ２ＴｉＦ６和ＫＢＦ４混合盐反应法制备ＴｉＢ２／Ａｌ－４．５Ｃｕ复合材料，通过ＳＥＭ，ＸＲＤ及ＭＴＳ等仪器研究了复合材料的凝固组织和力学性能。增强相ＴｉＢ２颗粒细小（＜２μｍ），呈近球形，均匀分布于基体之中，起强化和细化基体作用，ＴｉＢ２颗粒与基体结合好。当Ｋ２ＴｉＦ６和ＫＢＦ４混合物加入质量为基体的２０％时，复合材料的综合性能最好。ＵＴＳ达３５２ＭＰａ，ＥＬ达４．４％，ＨＢ达１４６。

Abstract

The TiB 2/Al 4.5Cu composite was fabricated by K 2TiF 6/KBF 4 mixed salts reaction in Al 4.5Cu molten metal. The solidification microstructure and mechanical properties of the composite was researched by SEM

XRD and MTS etc. The reinforced TiB 2 particle less than 2 μm

with nearly spheroidal form was uniformly distributed in the matrix

reinforcing and refining metal matrix. Moreover

the TiB 2 particle was combined with AlCu4 alloy well. When the K 5TiF 6 and KBF 4 mixed salts addition is 20% of the metal matrix

the mechanical properties of the composite is best

UTS is 352 MPa

EL is 4.4%

HB is 146.