| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8024095 | Surface and Coatings Technology | 2018 | 22 Pages |
Abstract
In this study, NiCrBSi-TiN composite coatings were obtained by plasma spraying NiCrBSi and Ti powders followed by subsequent induction remelting. The microstructural evolution was investigated by X-ray diffraction analysis (XRD), scanning electron microscopy (SEM) and atomic force microscopy (AFM). The wear resistance and erosion resistance of as-sprayed NiCrBSi-TiN (ASN) and induction remelted NiCrBSi-TiN (RMN) composite coatings were tested using a block-on-ring tribo-tester and solid-particle erosion configuration, respectively. Key findings suggest that induction remelting changed the microstructure of NiCrBSi-TiN composite coatings, by eliminating defects such as pores and micro-cracks and improved inter-lamellar bonding. A transition layer with a thickness of about 12â¯Î¼m was formed between the remelted coating and metal substrate which were connected with metallurgical bonds. RMN coatings exhibited better erosion and wear resistance and had a more stable friction behavior compared to ASN coatings.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Jingbai Chen, Yanchun Dong, Lining Wan, Yong Yang, Zhenhua Chu, Jianxin Zhang, Jining He, Dongyang Li,