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電場(chǎng)處理的強(qiáng)化晶界效應(yīng)與唯象理論
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TG166.3 TG146.21

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國(guó)家自然科學(xué)基金資助項(xiàng)目(59871039)


Effect and Phenomenological Theory of Electric Field Treatment on Grain Boundary Strengthening
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    摘要:

    以2090＋Ce鋁鋰合金為研究對(duì)象，重點(diǎn)探索了電場(chǎng)處理的強(qiáng)化晶界效應(yīng)，研究了室溫拉伸性能、顯微組織對(duì)之的響應(yīng)關(guān)系。結(jié)果表明，電場(chǎng)固溶處理可強(qiáng)化晶界，從而減弱沿晶斷裂傾向，獲得改善塑性的效應(yīng)，但對(duì)強(qiáng)度影響甚微。唯象理論研究表明，電場(chǎng)有助于增強(qiáng)晶內(nèi)溶質(zhì)固溶能力，阻礙溶質(zhì)、空位簇聚。

    Abstract:

    In this paper, specific emphasis has been placed on exploring the effect of electric field treatment on grain boundary strengthening for Al Li alloy 2090+Ce. The relation of the tensile properties to the electric field was investigated. The results show that the grain boundary can be so strengthened as to weaken the intergranular failure. An improvement in ductility has been obtained, however, the change of strength was very little. The research results of phenomenological theory show that the solution ability of solute atoms was enhanced and the cluster gather of solute atoms and vacancy was improved by electricfield treatment.

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陳錚 劉兵 等.電場(chǎng)處理的強(qiáng)化晶界效應(yīng)與唯象理論[J].稀有金屬材料與工程,2001,(5):331~334.[Chen Zheng, Liu Bing, Wang Yongxin, Wei Qilong. Effect and Phenomenological Theory of Electric Field Treatment on Grain Boundary Strengthening[J]. Rare Metal Materials and Engineering,2001,(5):331~334.]
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  • 最后修改日期:2000-09-15
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