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6061合金雙向等通道擠壓金屬流動(dòng)規(guī)律研究
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昆明理工大學(xué)

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中圖分類號(hào):

TG146.2 2

基金項(xiàng)目:

國家自然基金u0837601


Study on metal flow of 6061 aluminum alloy processed by Dual Equal Channel Extrusion
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Kun Ming science and technology university

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    摘要:

    摘 要: 采用數(shù)值模擬和實(shí)驗(yàn)驗(yàn)證的方法研究了雙向等通道擠壓過程金屬流動(dòng)規(guī)律，發(fā)現(xiàn)雙向等通道技術(shù)能夠在材料內(nèi)部造成劇烈的剪切變形，具有晶粒細(xì)化和形變強(qiáng)化作用，可以通過調(diào)整摩擦系數(shù)對(duì)變形過程進(jìn)行調(diào)控。6061合金A、B兩種路徑四道次雙向等通道擠壓發(fā)現(xiàn)，雙向等通道具有強(qiáng)烈的形變強(qiáng)化作用，在相同道次下，B路徑等效應(yīng)變量大于A路徑。

    Abstract:

    Abstract: Adopt the method of numerical simulation and experiment to study the metal flowing law in dual equal channel extrusion process ,dual equal channel extrusion technology can cause severe shear deformation within the material, lead to grain refinement and deformation strengthening effect, and the deformation process should be control by adjusting the coefficient of friction. By four passes extrusion 6061 Alloy within A, B path respective, dual equal channel extrusion has strong effetive strain, and at the same passes, path B have great strain strengthening ability than path A.

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起華榮.6061合金雙向等通道擠壓金屬流動(dòng)規(guī)律研究[J].稀有金屬材料與工程,2016,45(9):2317~2321.[qihuarong. Study on metal flow of 6061 aluminum alloy processed by Dual Equal Channel Extrusion[J]. Rare Metal Materials and Engineering,2016,45(9):2317~2321.]
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  • 收稿日期:2014-07-16
  • 最后修改日期:2014-08-29
  • 錄用日期:2015-12-11
  • 在線發(fā)布日期: 2016-10-09
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