| Microstructural and Mechanical Properties of a NiCoCrAlY Coating Prepared by Laser Cladding on a Compacted Graphite Cast Iron Surface | |
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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| Source Publication | LASERS IN ENGINEERING
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| 2017 | |
| Volume | 37Issue:4-6Pages:273-289 |
| ISSN | 0898-1507 |
| Abstract | 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. |
| Keyword | Nd:Yag Laser Compacted Graphite Cast Iron (Cgci) Nicocraly Powder Laser Cladding Columnar Ctystal Growth Boa Rang Interface Microhardness Powder Feed Rate |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000406998700007 |
| WOS Keyword | SUPERALLOY SINGLE-CRYSTALS ; DEPOSITION ; TEMPERATURE ; RESISTANCE ; EVOLUTION ; GROWTH |
| WOS Research Area | Materials Science ; Optics |
| WOS Subject | Materials Science, Multidisciplinary ; Optics |
| Funding Organization | Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) ; Discipline Research Initiative of CUMT(2015XKQY12) |
| Department | MAM激光智能制造工艺力学 |
| Classification | Q4 |
| Ranking | 1 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/70035 |
| Collection | 先进制造工艺力学实验室 |
| Corresponding Author | Yang, HF (reprint author), China Univ Min & Technol, Sch Mech & Elect Engn, Xuzhou 221116, Jiangsu, Peoples R China. |
| Recommended Citation 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| FA023.pdf（2069KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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