Effect of silver vanadate on the lubricating properties of NiCrAlY laser cladding coating at elevated temperatures | |
Xin BB(辛本斌)1,2; Yu YJ(俞友军)1; Zhou JS(周健松)1; Wang LQ(王凌倩)1; Ren SF(任书芳)1; Li Z(李珍)1 | |
刊名 | Surface & Coatings Technology |
2016 | |
卷号 | 307页码:136-145 |
关键词 | NiCrAlY based composites Tribological properties Elevated temperature Lubrication mechanism Synergistic lubricating effect |
ISSN号 | 0257-8972 |
通讯作者 | 俞友军 ; 周健松 |
英文摘要 | Self-lubricating coating NiCrAlY/Cr3C2 (NiCr)/V2O5/Ag2O was prepared by laser cladding. Two different kinds of contrast samples were prepared in order to verify the excellent tribological properties of the composite coating. The composition and microstructure of the composite coating were characterized by X-ray diffractometry, scanning electron microscopy with energy spectrum analyzer (SEM-EDS). The tribological behavior of the coating from 25 °C to 800 °C was evaluated by a ball-on-disk tribometer and dual-mode 3D surface profiler, the corresponding wear mechanism of the composite coating was investigated by Raman spectroscopy. It has been found that the composite coating shows better tribological properties than the compared coatings when the temperature higher than 400 °C, the friction coefficient of composite coating was 0.143 and the wear rate was 2.86 × 10− 5 mm3/Nm at 800 °C. All these can be attributed to formation of the self-lubricant Ag3VO4 and AgVO3 with lamella structure on the worn surface. The wear mechanism of the composite coating is dominated by plastic deformation, delamination and adhesive wear at elevated temperature. |
学科主题 | 材料科学与物理化学 |
收录类别 | SCI |
资助信息 | the National Natural Science Foundation of China (Grant No. 51475444;51505464;51405475) |
语种 | 英语 |
WOS记录号 | WOS:000390622200016 |
内容类型 | 期刊论文 |
源URL | [http://210.77.64.217/handle/362003/20420] |
专题 | 兰州化学物理研究所_先进润滑与防护材料研究发展中心 兰州化学物理研究所_固体润滑国家重点实验室 |
作者单位 | 1.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China 2.Graduate School of Chinese Academy of Sciences, Beijing 100039, PR China |
推荐引用方式 GB/T 7714 | Xin BB,Yu YJ,Zhou JS,et al. Effect of silver vanadate on the lubricating properties of NiCrAlY laser cladding coating at elevated temperatures[J]. Surface & Coatings Technology,2016,307:136-145. |
APA | Xin BB,Yu YJ,Zhou JS,Wang LQ,Ren SF,&Li Z.(2016).Effect of silver vanadate on the lubricating properties of NiCrAlY laser cladding coating at elevated temperatures.Surface & Coatings Technology,307,136-145. |
MLA | Xin BB,et al."Effect of silver vanadate on the lubricating properties of NiCrAlY laser cladding coating at elevated temperatures".Surface & Coatings Technology 307(2016):136-145. |
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