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微量Ce和Ti對AlCuMgAg合金組織和性能的影響
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TG146.21

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國家“973”重點基礎(chǔ)研究發(fā)展規(guī)劃項目(G1999064900-9-02)


Effect of Ce and Ti Doping on Microstructure and Properties of the Alloy AlCuMgAg
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    摘要:

    采用拉伸測試和顯微組織分析，研究了微量Ce和Ti對AlCuMgAg合金組織和性能的影響。結(jié)果表明，添加Ce或Ti，能加速合金的時效硬化。提高合金室溫抗拉強度，但只有添加Ce能提高合金的高溫耐熱性能；顯微組織分析表明。Ce或Ti的添加并不改變強化析出相的種類，但能細(xì)化析出相。提高其密度。同時添加Ce和Ti，合金中形成了1種新的硬而脆的AlTiCeCu金屬間化合物相，降低了合金的時效硬化和拉伸強度，使強化析出相的析出受到抑制。

    Abstract:

    The microstructure and mechanical properties of AlCuMgAg doped with Ce and Ti were investigated by tensile testing and microstructure analysis. It is shown that Ce and Ti doping increases the hardness and improves the tensile strength. Moreover, the Ce doping can improve the heat resistance of the alloy. By microstructure analysis, it is shown that the kinds of the precipitation- strengthening phases are not changed, although they decrease in size and increase in density. When both Ce and Ti were doped into the AlCuMgAg alloy, a new AlTiCeCu compound that is harder and brittle is formed, the precipitated phases were inhibited, and the tensile strength of the alloy decreased.

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肖代紅 王健農(nóng) 丁冬雁 陳世樸.微量Ce和Ti對AlCuMgAg合金組織和性能的影響[J].稀有金屬材料與工程,2004,33(4):404~407.[Xiao Daihong, Wang Jannong, Ding Dongyan, Chen Shipu. Effect of Ce and Ti Doping on Microstructure and Properties of the Alloy AlCuMgAg[J]. Rare Metal Materials and Engineering,2004,33(4):404~407.]
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  • 最后修改日期:2002-09-16
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