Relationships between spray parameters, microstructures and ultrasonic cavitation erosion behavior of HVOF sprayed Fe-based amorphous/nanocrystalline coatings
文献类型：期刊论文
| 作者 | Qiao, Lei; Wu, Yuping; Hong, Sheng; Zhang, Jianfeng; Shi, Wei; Zheng, Yugui; Wu, YP; Hong, S (reprint author), Hohai Univ, Coll Mech & Mat, 8 Focheng West Rd, Nanjing 211100, Jiangsu, Peoples R China. |
| 刊名 | ELSEVIER SCIENCE BV
 |
| 出版日期 | 2017-11-01 |
| 卷号 | 39页码:39-46 |
| 关键词 | Cavitation Hvof Fe-based Taguchi Amorphous/nanocrystalline |
| ISSN号 | 1350-4177 |
| 英文摘要 | s Fe-based amorphous/nanocrystalline coatings were prepared on the AISI 321 steel substrate by the high-velocity oxygen-fuel (HVOF) thermal spraying technology. The effect of selected parameters (oxygen flow, kerosene flow and spray distance) on the cavitation erosion resistance (denoted as Rc) of the coating were investigated by using the Taguchi method. Statistical tools such as design of experiments (DOE), signal-to-noise (S/N) ratio and analysis of variance (ANOVA) were used to meet the expected objective. It was concluded that the kerosene flow had greater influence on the Rc of the coating and followed by the spray distance and the oxygen flow, respectively. The optimum spray parameters (OSP) were 963 L/min for the oxygen flow, 28 L/h for the kerosene flow, and 330 mm for the spray distance. The Rc of the coating increased with the increase of hardness or the decrease of porosity, and the hardness had a greater influence on Rc than the porosity. The Fe-based coating deposited under the OSP exhibited the best cavitation erosion resistance in distilled water. The cracks initiated at the edge of the pores and the interfaces between the un-melted or half-melted particles, and finally leaded to the delamination of the coating.; s Fe-based amorphous/nanocrystalline coatings were prepared on the AISI 321 steel substrate by the high-velocity oxygen-fuel (HVOF) thermal spraying technology. The effect of selected parameters (oxygen flow, kerosene flow and spray distance) on the cavitation erosion resistance (denoted as Rc) of the coating were investigated by using the Taguchi method. Statistical tools such as design of experiments (DOE), signal-to-noise (S/N) ratio and analysis of variance (ANOVA) were used to meet the expected objective. It was concluded that the kerosene flow had greater influence on the Rc of the coating and followed by the spray distance and the oxygen flow, respectively. The optimum spray parameters (OSP) were 963 L/min for the oxygen flow, 28 L/h for the kerosene flow, and 330 mm for the spray distance. The Rc of the coating increased with the increase of hardness or the decrease of porosity, and the hardness had a greater influence on Rc than the porosity. The Fe-based coating deposited under the OSP exhibited the best cavitation erosion resistance in distilled water. The cracks initiated at the edge of the pores and the interfaces between the un-melted or half-melted particles, and finally leaded to the delamination of the coating. |
| 学科主题 | Acoustics ; Chemistry, Multidisciplinary |
| 语种 | 英语 |
| 资助机构 | National Natural Science Foundation of China [51579087, 51609067]; Natural Science Foundation of Jiangsu Province of China [BK20150806]; China Postdoctoral Science Foundation [2016M590404]; Material Corrosion and Protection Key Laboratory of Sichuan Province [2016CL08]; Fundamental Research Funds for the Central Universities [2016B45714]; CAS Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences [2016NMSAKF03] |
| 公开日期 | 2018-01-10 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/79028]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wu, YP; Hong, S (reprint author), Hohai Univ, Coll Mech & Mat, 8 Focheng West Rd, Nanjing 211100, Jiangsu, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Qiao, Lei,Wu, Yuping,Hong, Sheng,et al. Relationships between spray parameters, microstructures and ultrasonic cavitation erosion behavior of HVOF sprayed Fe-based amorphous/nanocrystalline coatings[J]. ELSEVIER SCIENCE BV,2017,39:39-46. |
| APA | Qiao, Lei.,Wu, Yuping.,Hong, Sheng.,Zhang, Jianfeng.,Shi, Wei.,...&Hong, S .(2017).Relationships between spray parameters, microstructures and ultrasonic cavitation erosion behavior of HVOF sprayed Fe-based amorphous/nanocrystalline coatings.ELSEVIER SCIENCE BV,39,39-46. |
| MLA | Qiao, Lei,et al."Relationships between spray parameters, microstructures and ultrasonic cavitation erosion behavior of HVOF sprayed Fe-based amorphous/nanocrystalline coatings".ELSEVIER SCIENCE BV 39(2017):39-46. |
入库方式： OAI收割
来源：金属研究所
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