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金属学报  2017, Vol. 53 Issue (3): 369-375    DOI: 10.11900/0412.1961.2016.00281
  本期目录 | 过刊浏览 |
高Fe含量Fe-B-Si-Hf块体非晶合金的结构-性能关联
耿遥祥1(),张志杰1,王英敏2,羌建兵2,董闯2,汪海斌1,特古斯3
1 江苏科技大学材料科学与工程学院 镇江 212003
2 大连理工大学三束材料改性教育部重点实验室 大连 116024
3 内蒙古师范大学内蒙古自治区功能材料物理与化学重点实验室 呼和浩特 010022
Structure-Property Correlation of High Fe-ContentFe-B-Si-Hf Bulk Glassy Alloys
Yaoxiang GENG1(),Zhijie ZHANG1,Yingmin WANG2,Jianbing QIANG2,Chuang DONG2,Haibin WANG1,Ojied TEGUS3
1 School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
2 Key Lab of Materials Modification by Laser, Ion and Electron Beams, Ministry of Education, Dalian University of Technology, Dalian 116024, China
3 Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, Inner Mongolia Normal University, Hohhot 010022, China
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摘要: 

以具有最佳非晶形成能力的新型Fe-B-Si-Hf四元块体非晶合金团簇式成分[Si-B2Fe7.7Hf0.3]Fe (Fe72.5B16.7Si8.3Hf2.5)为基础,通过添加Fe原子获得了[Si-B2Fe7.7Hf0.3]Fe+Fex (x=0、1.5、2、2.5和3,原子个数)系列高Fe含量的Fe-B-Si-Hf四元合金成分。液态急冷、热分析和磁性测量结果表明,随着Fe原子数量的增加,非晶合金的形成能力逐渐降低,形成棒状块体非晶样品的临界尺寸由x=0时的2.5 mm降低到x=2时的1 mm。非晶样品的玻璃态转变温度、晶化温度和Curie温度随Fe原子数量的增加也整体上表现为降低的趋势。该系列非晶样品软磁性能优异,其中[Si-B2Fe7.7Hf0.3]Fe+Fe2 (Fe76.4B14.3Si7.1Hf2.2)块体非晶合金的饱和磁化强度和矫顽力分别为1.58 T和2.8 A/m。为建立高Fe含量Fe-B-Si-Hf非晶合金的结构-性能关联,构建了{[Si-B2Fe7.7Hf0.3]+[Fe-Fe14]x/15}Fe非晶合金的“双团簇”微观结构模型。结果表明,源于α-Fe的[Fe-Fe14]团簇的数量在Fe-B-Si-Hf四元非晶合金的性能变化中起决定作用。

关键词 成分设计Fe-B-Si-Hf块体非晶合金软磁性能“双团簇”模型结构-性能关联    
Abstract

Fe-based amorphous alloys are well known for their good magnetic properties. But these alloys were only prepared into ribbon form in early times due to their insufficient glass-forming abilities (GFAs). After first synthesized of Fe-(Al, Ga)-P-C-B bulk glassy alloy, many Fe-based bulk metallic glasses (BMGs) were synthesized. Compared with amorphous alloy ribbons, the GFA of these alloys was significantly improved, but the saturation magnetization (Bs) was less than 1.5 T. To achieve higher Bs in Fe-based amorphous alloys, the Fe content should be maximized and the metalloid and alloying elements contents should be minimized, but it makes glass formation difficult. It is difficult to reveal the effect mechanism of Fe atoms in high Fe-content amorphous alloys, due to the complexity of the amorphous structure. The present work focuses on explores the structure-property correlations of high Fe-content Fe-B-Si-Hf multi-component glassy alloys with an amorphous structure model. A series of high Fe-content alloys with the composition of [Si-B2Fe7.7Hf0.3]Fe+Fex (x=0, 1.5, 2, 2.5 and 3) was produced by adding Fe atoms to the ideal cluster formula, which is based on the composition with the best glass-forming ability of [Si-B2Fe7.7Hf0.3]Fe (Fe72.5B16.7Si8.3Hf2.5) for Fe-B-Si-Hf quaternary alloys. Liquid quench, thermal analysis and magnetic measurement results show that the critical rod size for glassy alloys gradually decreases from 2.5 mm to 1 mm as the number of Fe atoms increases from 0 to 2. The [Si-B2Fe7.7Hf0.3]Fe+Fe2 (Fe76.4B14.3Si7.1Hf2.2) bulk glassy alloy has a high saturation magnetization of 1.58 T and a low coercive force of 2.8 A/m. The decreasing of the glass transition temperature, the thermal stability, the glass-forming ability and the Curie temperature with increasing Fe content in Fe-B-Si-Hf glassy alloys was evaluated using a “dual-cluster” ({[Si-B2Fe7.7Hf0.3]+[Fe-Fe14]x/15}Fe) amorphous structure model. The result shows that the [Fe-Fe14] cluster from the α-Fe phase plays an important role in determining the properties change for this series high Fe-content Fe-B-Si-Hf glassy alloys.

Key wordscomposition design    Fe-B-Si-Hf bulk glassy alloy    soft magnetic property    "dual-cluster" model    structure-property correlation
收稿日期: 2016-07-05     
基金资助:国家自然科学基金项目Nos.51671045和51601073,国际热核聚变实验堆计划项目Nos.2013GB107003和2015GB105003,以及中央高校基本科研业务费项目No;DUT16ZD209

引用本文:

耿遥祥,张志杰,王英敏,羌建兵,董闯,汪海斌,特古斯. 高Fe含量Fe-B-Si-Hf块体非晶合金的结构-性能关联[J]. 金属学报, 2017, 53(3): 369-375.
Yaoxiang GENG, Zhijie ZHANG, Yingmin WANG, Jianbing QIANG, Chuang DONG, Haibin WANG, Ojied TEGUS. Structure-Property Correlation of High Fe-ContentFe-B-Si-Hf Bulk Glassy Alloys. Acta Metall Sin, 2017, 53(3): 369-375.

链接本文:

https://www.ams.org.cn/CN/10.11900/0412.1961.2016.00281      或      https://www.ams.org.cn/CN/Y2017/V53/I3/369

图1  [Si-B2Fe7.7Hf0.3]Fe+Fex (x=0、1.5、2、2.5和3)系列棒状和条带样品的XRD谱
图2  直径为1 mm棒状[Si-B2Fe7.7Hf0.3]Fe+Fe2样品的TEM明场像和SAED谱
图3  [Si-B2Fe7.7Hf0.3]Fe+Fex (x=0、1.5、2、2.5和3)系列非晶条带样品的DSC和DTA曲线
图4  [Si-B2Fe7.7Hf0.3]Fe+Fex (x=0、1.5、2、2.5和3)非晶样品的玻璃态转变温度(Tg)、晶化开始温度(Tx)和约化玻璃转变温度(Trg)随x的变化关系
图5  [Si-B2Fe7.7Hf0.3]Fe+Fex (x=0、1.5、2、2.5和3)非晶条带样品的磁化曲线和磁滞回线
图6  [Si-B2Fe7.7Hf0.3]Fe+Fex (x=0、1.5、2、2.5和3)非晶样品的饱和磁化强度(Bs)和Curie温度(Tc)随x的变化关系
Cluster formulas x Corresponding dc / mm Tg / K Tx / K Tl / K Trg
composition
[Si-B2Fe7.7Hf0.3]Fe+Fe0 0 Fe72.5B16.67Si8.3Hf2.5 2.5 852 885 1458 0.584
[Si-B2Fe7.7Hf0.3]Fe+Fe1.5 1.5 Fe75.6B14.8Si7.4Hf2.2 1.0 842 864 1472 0.572
[Si-B2Fe7.7Hf0.3]Fe+Fe2 2 Fe76.4B14.3Si7.1Hf2.2 1.0 824 847 1461 0.564
[Si-B2Fe7.7Hf0.3]Fe+Fe2.5 2.5 Fe77.2B13.8Si6.9Hf2.1 <1.0 830 852 1515 0.548
[Si-B2Fe7.7Hf0.3]Fe+Fe3 3 Fe78.0B13.3Si6.7Hf2.0 <1.0 825 849 1521 0.542
表1  [Si-B2Fe7.7Hf0.3]Fe+Fex (x=0、1.5、2、2.5和3)系列非晶样品的团簇式对应的成分、临界尺寸dc、Tg、Tx、熔化结束温度(Tl)和Trg
图7  {[Si-B2Fe7.7Hf0.3]+[Fe-Fe14]x/15}Fe非晶合金的2维微观结构模型(图中[Si-B2(Fe,Hf)8]和[Fe-Fe14]团簇按类fcc堆垛,连接原子Fe则进入到团簇间的八面体间隙位)
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