Microstructural and Mechanical Properties of a NiCoCrAlY Coating Prepared by Laser Cladding on a Compacted Graphite Cast Iron Surface
文献类型：期刊论文
| 作者 | Liu, H.; Yu G(虞钢) ; He XL(何秀丽); Yang, H. F.; Han, Z. T.; Yang, HF (reprint author), China Univ Min & Technol, Sch Mech & Elect Engn, Xuzhou 221116, Jiangsu, Peoples R China.
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| 刊名 | LASERS IN ENGINEERING
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| 出版日期 | 2017 |
| 卷号 | 37期号:4-6页码:273-289 |
| 关键词 | Nd:Yag Laser Compacted Graphite Cast Iron (Cgci) Nicocraly Powder Laser Cladding Columnar Ctystal Growth Boa Rang Interface Microhardness Powder Feed Rate |
| ISSN号 | 0898-1507 |
| 文献子类 | Article |
| 英文摘要 | Laser cladding with synchronous powder feeding on the surface of compacted graphite cast iron (CGCI) was conducted using NiCoCrAlY powder in this research, with the aim of obtaining coatings mainly consisting of directional columnar crystals in the microstructure. A metallographic microscope, scanning electron microscope (SEM), X-ray diffractometer (XRD), and Vickers hardness tester were used to analyse the dilution rate, bonding properties, microstructure, and microhardness of the coating. The research results showed that: the alloy coating mainly consisted of the dendrites of gamma(Fe, Ni) and the carbide phases of Cr7C3 and Cr23C6 between grain boundaries. Meanwhile, it was discovered that the powder feed rate can significantly influence the crystalline state within the coating: with increasing powder feed rate, the microstructure of the coating was gradually converted from dendrites with poor directivity to columnar crystals with strong directivity, and the average microhardness was reduced owning to the decrease of the amount of Cr7C3 and Cr23C6 phases. |
| 分类号 | Q4 |
| WOS关键词 | SUPERALLOY SINGLE-CRYSTALS ; DEPOSITION ; TEMPERATURE ; RESISTANCE ; EVOLUTION ; GROWTH |
| WOS研究方向 | Materials Science ; Optics |
| 语种 | 英语 |
| WOS记录号 | WOS:000406998700007 |
| 资助机构 | Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) ; Discipline Research Initiative of CUMT(2015XKQY12) |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/70035]  |
| 专题 | 力学研究所_先进制造工艺力学重点实验室 |
| 通讯作者 | Yang, HF (reprint author), China Univ Min & Technol, Sch Mech & Elect Engn, Xuzhou 221116, Jiangsu, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Liu, H.,Yu G,He XL,et al. Microstructural and Mechanical Properties of a NiCoCrAlY Coating Prepared by Laser Cladding on a Compacted Graphite Cast Iron Surface[J]. LASERS IN ENGINEERING,2017,37(4-6):273-289. |
| APA | Liu, H.,虞钢,何秀丽,Yang, H. F.,Han, Z. T.,&Yang, HF .(2017).Microstructural and Mechanical Properties of a NiCoCrAlY Coating Prepared by Laser Cladding on a Compacted Graphite Cast Iron Surface.LASERS IN ENGINEERING,37(4-6),273-289. |
| MLA | Liu, H.,et al."Microstructural and Mechanical Properties of a NiCoCrAlY Coating Prepared by Laser Cladding on a Compacted Graphite Cast Iron Surface".LASERS IN ENGINEERING 37.4-6(2017):273-289. |
入库方式： OAI收割
来源：力学研究所
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