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Er對(duì)Al-Zn-In合金組織和電化學(xué)性能的影響
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廣西大學(xué)有色金屬材料及其加工新技術(shù)教育部重點(diǎn)實(shí)驗(yàn)室,廣西大學(xué)有色金屬材料及其加工新技術(shù)教育部重點(diǎn)實(shí)驗(yàn)室,廣西大學(xué)有色金屬材料及其加工新技術(shù)教育部重點(diǎn)實(shí)驗(yàn)室,廣西大學(xué)有色金屬材料及其加工新技術(shù)教育部重點(diǎn)實(shí)驗(yàn)室,廣西大學(xué)有色金屬材料及其加工新技術(shù)教育部重點(diǎn)實(shí)驗(yàn)室,廣西大學(xué)有色金屬材料及其加工新技術(shù)教育部重點(diǎn)實(shí)驗(yàn)室,廣西大學(xué)有色金屬材料及其加工新技術(shù)教育部重點(diǎn)實(shí)驗(yàn)室

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中圖分類號(hào):

TG174.3

基金項(xiàng)目:

國(guó)家自然科學(xué)基金資助(項(xiàng)目號(hào)51401057)；廣西自然科學(xué)基金資助(2013GXNSFBA019252)；廣西教育廳科研項(xiàng)目資助(No. 2013YB011)；新型鋁合金材料及先進(jìn)加工理論與技術(shù)系統(tǒng)性課題資助(桂科能13-051-02,13-A-02-03)；“鋁合金材料先進(jìn)加工技術(shù)”八桂學(xué)者專項(xiàng)經(jīng)費(fèi)資助


Effect of Er on microstructure and electrochemical performance of Al-Zn-In anode
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Key Lab of Nonferrous Materials and New Processing Technology,Guangxi University,Nanning ,Guangxi,China,Key Lab of Nonferrous Materials and New Processing Technology,Guangxi University,Nanning ,Guangxi,China,Key Lab of Nonferrous Materials and New Processing Technology,Guangxi University,Nanning ,Guangxi,China,Key Lab of Nonferrous Materials and New Processing Technology,Guangxi University,Nanning ,Guangxi,China,Key Lab of Nonferrous Materials and New Processing Technology,Guangxi University,Nanning ,Guangxi,China,Key Lab of Nonferrous Materials and New Processing Technology,Guangxi University,Nanning ,Guangxi,China,Key Lab of Nonferrous Materials and New Processing Technology,Guangxi University,Nanning ,Guangxi,China

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    摘要:

    采用掃描電鏡、能譜和X射線衍射等方法，研究了不同Er含量對(duì)Al-Zn-In陽(yáng)極合金組織的影響；在3.5wt% NaCl溶液中測(cè)試了不同Er含量的Al-5Zn-0.03In-Er合金的極化曲線和電化學(xué)阻抗（EIS）。結(jié)果表明：隨著Er含量的增加，鋁合金陽(yáng)極枝晶得到細(xì)化，枝晶間析出相增多，合金腐蝕電位正移，EIS譜中阻抗弧半徑增大，腐蝕速度減緩。四種合金中，Al-5Zn-0.03In-1Er合金枝晶得到一定程度細(xì)化、析出相數(shù)量適中，點(diǎn)蝕坑較為獨(dú)立，呈現(xiàn)均勻腐蝕的特征，可作為陽(yáng)極合金材料。

    Abstract:

    The effect of Er content on microstructure of Al-Zn-In alloy anodes were studied by using scanning electron microscopy(SEM), energy spectrum analysis and X-ray diffraction analysis. The polarization curves and EIS of Al-Zn-In alloy with different Er content were tested in the 3.5wt% NaCl solution. The results show that with the increase of Er content, the dendrite was refined, the amount of inter-dendritic precipitates increased, the corrosion potential became more positive, the radius of electrochemical impedance spectroscopy enlarged and corrosion rate also decreased. Al-5Zn-0.03In-1Er alloy has refined dendrites and proper amount of precipitates, with the corrision morphologies of independent pitting, corrosion in uniformity, which is an ideal choice for using as sacrifical alloy.

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李航,魏兵,許征兵,曾建民,李恒,陳蓉,陸艷艷. Er對(duì)Al-Zn-In合金組織和電化學(xué)性能的影響[J].稀有金屬材料與工程,2016,45(7):1848~1854.[Li Hang, Weibin, Xu Zhengbing, Zeng Jianmin, Li Heng, Chen Rong, Lu Yanyan. Effect of Er on microstructure and electrochemical performance of Al-Zn-In anode[J]. Rare Metal Materials and Engineering,2016,45(7):1848~1854.]
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  • 收稿日期:2015-03-31
  • 最后修改日期:2015-12-26
  • 錄用日期:2016-01-14
  • 在線發(fā)布日期: 2016-10-09
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