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低溫真空擴(kuò)散反應(yīng)制備高性能TiAl合金粉
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國(guó)家自然科學(xué)基金（50774010）；新金屬材料國(guó)家重點(diǎn)實(shí)驗(yàn)室開(kāi)放基金資助項(xiàng)目（2010Z-04）；國(guó)家教育部回國(guó)人員科研啟動(dòng)基金資助項(xiàng)目


Preparation of TiAl Alloy Powders by Diffusion Reaction at Low Temperature and in High Vacuum
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    摘要:

    通過(guò)高能球磨均勻混合以及低溫真空預(yù)燒工藝制備TiAl合金粉，原料為粒度43 μm Ti粉和9~12 μm Al粉，研究不同溫度下不同保溫時(shí)間后Ti、Al混合粉的合金化程度。結(jié)果表明：高能球磨1h的Ti、Al混合粉在500 ℃保溫2 h，再在600 ℃保溫3 h能制得主要為TiAl相和少量Ti3Al相的合金粉，制備合金粉的平均粒徑為20 μm左右。

    Abstract:

    TiAl alloy powder was prepared by high-energy ball milling and heat preservation under the condition of low temperature and high vacuum with titanium powder of 43 μm and aluminium powder of 9~12 μm as starting materials. After heat treated for different time and at different temperatures, the alloying of blended powder of titanium and aluminium was investigated. The results show that the alloy powder with the main intermetallic compounds of TiAl and a small quantity of Ti3Al can be obtained through 1 h high-energy ball milling and heat preservation at 500 oC for 2 h, and 600 oC for 3 h in high vacuum. The particle size of the prepared alloy powder is about 20 μm.

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王 軍,邵慧萍,郭志猛.低溫真空擴(kuò)散反應(yīng)制備高性能TiAl合金粉[J].稀有金屬材料與工程,2013,42(6):1264~1267.[Wang Jun, Shao Huiping, Guo Zhimeng. Preparation of TiAl Alloy Powders by Diffusion Reaction at Low Temperature and in High Vacuum[J]. Rare Metal Materials and Engineering,2013,42(6):1264~1267.]
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  • 收稿日期:2012-06-20
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