| 引用本文: | 田浩亮,魏世丞,陈永雄,刘毅,徐滨士.高速电弧喷涂FeAlNbB非晶纳米晶涂层的组织与性能[J].材料科学与工艺,2012,20(1):108-113.DOI:10.11951/j.issn.1005-0299.20120122. |
| TIAN Hao-liang,WEI Shi-cheng,CHEN Yong-xiong,LIU Yi,XU Bin-shi.Microstructure and mechanical properties of FeAlNbB amorphous/nanocrystalline coatings deposited by high velocity arc spaying[J].Materials Science and Technology,2012,20(1):108-113.DOI:10.11951/j.issn.1005-0299.20120122. |
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| 摘要: |
| 为了提高钢铁材料的耐磨性和硬度，利用高速电弧喷涂技术在45钢基体上制备了FeAlNbB非晶纳米晶涂层.采用扫描电镜（SEM）、能谱分析仪(EDAX)，透射电镜(TEM)和X射线衍射仪等设备对涂层的组织结构和相组成进行了分析，研究了非晶纳米晶的形成机制.实验结果表明：FeAlNbB非晶纳米晶涂层是非晶相、α-Fe、FeAl纳米晶和Fe3Al微晶共存的多相组织，涂层中非晶相含量约36.2%，纳米晶尺寸约14.1 nm；涂层组织均匀，结构致密，平均孔隙率约2.3％；非晶纳米晶涂层具有较高的硬度，其耐磨性是相同实验条件下制备的3Cr13涂层的2.2倍. |
| 关键词: 非晶纳米晶涂层 高速电弧喷涂 显微硬度 耐磨性 |
| DOI：10.11951/j.issn.1005-0299.20120122 |
| 分类号:TG174.442 |
| 基金项目:国家重点基础研究发展计划（973计划）资助项目（2011CB013403）；国家自然科学基金资助项目 (50735006;50971132) |
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| Microstructure and mechanical properties of FeAlNbB amorphous/nanocrystalline coatings deposited by high velocity arc spaying |
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TIAN Hao-liang1,2, WEI Shi-cheng3, CHEN Yong-xiong3, LIU Yi3, XU Bin-shi3
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1.School of Material Science and Engineering,Beijing University of Aeronautics＆ Astronautics ,Beijing 100037,China，E-mail:haoliangtian@163.com;2.National key Laboratory for Remanufacturing,Academy of Armored Forces Engineering,Beijing 100072,China;3.National key Laboratory for Remanufacturing, Academy of Armored Forces Engineering,Beijing 100072,China
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| Abstract: |
| To improve the hardness and the wear resistance properties of the steel materials.FeAlNbB amorphous/nanocrystalline coatings were deposited on a mild steel by high velocity arc spraying processing of which the microstructure was characterized by SEM 、EDAX 、TEM and XRD.The results show that the microstructure consists of amorphous、α-Fe 、FeAl nanocrystalline and Fe3Al microcrystalline phase.The volumn fraction of amorphous phase is 36.2% and the size of the nanocrystalline is 14.1 nm.The coatings were fully dense with low porosity of 2.3%.The formation mechanism of amorphous/nanocrystalline was discussed.The microhardness and wear resistance of the 3Cr13 coating fabricated under the same experiment conditions and the amorphous/nanocrystalline coatings were also analyzed.The amorphous/nanocrystalline coating has high hardness and the wear resistance is 2.2 times better than that of 3Cr13 coatings. |
| Key words: amorphous/nanocrystalline coating high velocity arc spraying microhardness wear resistance |
