Reaction mechanism of Ni-Al during thermal spraying

被引:0
|
作者
Wang, Z. L. [1 ]
Li, Q. [2 ]
Han, X. R. [2 ]
Ju, C. [1 ]
Song, Q. H. [1 ]
Li, J. J. [1 ]
Sun, Z. P. [1 ]
Zhang, Y. F. [1 ]
机构
[1] Qilu Univ Technol, Shandong Acad Sci, Sch Mech & Automot Engn, Jinan 250353, Shandong, Peoples R China
[2] Qilu Univ Technol, Shandong Acad Sci, Sch Mat Sci & Engn, Jinan 250353, Shandong, Peoples R China
关键词
Thermal spraying; Ni-Al coating; Ni-Al composite wire; Reaction mechanism; OXIDATION; COATINGS;
D O I
暂无
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
In this paper, the microstructure and element distribution of the Ni-Al coating prepared with the nickel coated aluminum composite powder, aluminum coated nickel composite powder and Ni-Al composite wire are studied by Scanning Electron Microscopy. Energy dispersive spectrometer element mapping was employed to obtain elemental composition at different areas of the powder and coating cross-section. X- ray diffraction and thermogravimetry differential thermal analysis are used to qualitatively analyze the phase. Finally, the reaction mechanism of Ni-Al in thermal spraying process is studied. It is found that the quality of Ni-Al coating obtained by aluminum coated nickel powder is better than that of nickel coated aluminum powder. Compared with Ni-Al composite powder, the spraying efficiency of Ni-Al composite wire flame spraying is higher.
引用
收藏
页码:1295 / 1311
页数:17
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