| 球墨铸铁基非晶合金的形成及腐蚀行为 |
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| 引用本文： | 郭强军,逄淑杰,张涛.球墨铸铁基非晶合金的形成及腐蚀行为[J].稀有金属材料与工程,2008(Z4). |
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| 作者姓名： | 郭强军 逄淑杰 张涛 |
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| 作者单位： | 北京航空航天大学; |
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| 基金项目： | 国家自然科学基金(50771005); 长江学者和创新团队发展计划(IRT0512)资助 |
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| 摘 要： | 采用熔态旋淬法制备了耐腐蚀球墨铸铁(QT)基(QT0.992B0.008)99-xAl1Crx(x=0.5,1,2,3,4,6,8%)非晶合金。该系非晶合金在升温过程中没有出现玻璃转变温度,随Cr含量的增加晶化温度逐渐升高。高Cr含量的QT-B-Al-Cr非晶合金在3%NaCl和0.5mol/LH2SO4溶液中具有优异的耐腐蚀性能。随着Cr含量的增加,合金的腐蚀速率和钝化电流密度均降低,耐腐蚀性能提高。QT-B-Al-Cr非晶合金的饱和磁感应强度为0.9～1.35T,并随着合金中Cr含量的增加而降低。
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| 关 键 词： | Fe基合金 非晶合金 球墨铸铁 腐蚀 磁性 |
Formation and Corrosion Behavior of Spheroidal Graphite Cast Iron (QT)-Based QT-B-Al-Cr Amorphous Alloys |
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| Guo Qiangjun,Pang Shujie,Zhang Tao.Formation and Corrosion Behavior of Spheroidal Graphite Cast Iron (QT)-Based QT-B-Al-Cr Amorphous Alloys[J].Rare Metal Materials and Engineering,2008(Z4). |
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| Authors: | Guo Qiangjun Pang Shujie Zhang Tao |
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| Affiliation: | Guo Qiangjun,Pang Shujie,Zhang Tao (Beihang University,Beijing 100083,China) |
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| Abstract: | Corrosion-resistant spheroidal graphite cast iron (QT)-based (QT0.992B0.008)99-xAl1Crx(x=0.5, 1, 2, 3, 4, 6, 8wt%) amorphous alloys were synthesized by single-roller melt-spinning method. The QT-B-Al-Cr amorphous alloys exhibit no glass transition temperature before crystallization upon heating, and the onset crystallization temperature increases with Cr content. The amorphous alloys with 3wt% or more Cr possess high corrosion resistance in 3wt% NaCl and 0.5 moL/H2SO4 solutions. With the increase of Cr cont... |
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| Keywords: | Fe-based alloy amorphous alloy cast iron corrosion magnetic properties |
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