|
|
|
| Influence of Heat Treatment on Microstructure of Composite Coatings of FeAl-Cr3C2 |
Yao CHEN1,Honghua ZHANG1,2,Ganlan YANG1,2,Junhuai XIANG1,2( ) |
1 School of Materials and Mechanical & Electrical Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013, China;
2 Jiangxi Key Laboratory of Surface Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013, China |
|
|
|
|
Abstract Composite coatings of Fe40Al-50%Cr3C2 with the thickness of 30 μm were prepared by high velocity oxygen-fuel (HVOF) technology on 304 steel. The change of its microstructure by heat treatment at different temperatures was studied by means of XRD and SEM/EDS. The surface of the coating is very rough and the element distribution is inhomogeneous before the heat treatment. The composition of the coating is mainly composed of Fe, Al, intermetallics plus a little oxide of Fe and Al. A large amount of particles of Fe with big size are present in the outer layer, while a few particles of Al are present in the inner layer. The homogeneity of the coating has great change after vacuum annealing, though some holes still exist in the coating. With the increase of the annealing temperature from 700 ℃ to 900 ℃, the pure Fe and Al particles of big size disappear gradually due to their full diffusion and thereby formation of more intermetallics.
|
|
Received: 01 October 2016
|
| Fund: Supported by Natural Science Foundation of Jiangxi Province (20132BAB206015 and 20122BAB216018) and Science and Technology Research Youth Fund Project of Jiangxi Provincial Education Department (GJJ150811) |
| [1] | Chen Y, Chu M Y, Wang L J, et al.Microstructure and performance of Cr2AlC coatings deposited by HVOF spraying[J]. Chin. J. Rare Met., 2012, 36: 568 | | [1] | (陈洋, 储茂友, 王力军等. 超音速火焰喷涂制备Cr2AlC涂层组织性能研究[J]. 稀有金属, 2012, 36: 568) | | [2] | Wang G, Miao D D, Xiao P, et al.Microstructure and corrosion behavior of Fe-based amorphous alloy coatings by high velocity oxy fuel spraying[J]. Funct. Mater., 2014, 45: 21123 | | [2] | (王刚, 缪丹丹, 肖平等. 超音速火焰喷涂制备Fe基非晶合金涂层的组织与腐蚀性能研究[J]. 功能材料, 2014, 45: 21123) | | [3] | Zamanzade M, Vehoff H, Barnoush A.Effect of chromium on elastic and plastic deformation of Fe3Al intermetallics[J]. Intermetallics, 2013, 41: 28 | | [4] | Zhang H H, Xiang J H, Wang W, et al.High temperature oxidation of coatings prepared on Fe-15Cu-10Al alloys with controlled microstructures[J]. Adv. Sci. Lett., 2012, 14: 352 | | [5] | Lee S E, Jung S, Jang O J, et al.Oxidation behavior of Fe-15Cr-4Al alloy at high temperatures[J]. Sci. Adv. Mater., 2015, 7: 1475 | | [6] | Nakamura R, Takasawa K, Yamazaki Y, et al.Single-phase interdiffusion in the B2 type intermetallic compounds NiAl, CoAl and FeAl[J]. Intermetallics, 2002, 10: 195 | | [7] | Houngniou C, Chevalier S, Larpin J P.High-temperature-oxidation behavior of iron-aluminide diffusion coatings[J]. Oxid. Met., 2006, 65: 409 | | [8] | Xiang J H, Zhu X H, Chen G, et al.Oxidation behavior of Fe40AlxWC composite coatings obtained by high-velocity oxygen fuel thermal spray[J]. Trans. Nonferrous Met. Soc. China, 2009, 19: 1545 | | [9] | Guilemany J M, Cinca N, Dosta S, et al.High-temperature oxidation of Fe40Al coatings obtained by HVOF thermal spray[J]. Intermetallics, 2007, 15: 1384 | | [10] | Guilemany J M, Lima C R C, Cinca N, et al. Studies of Fe-40Al coatings obtained by high velocity oxy-fuel[J]. Surf. Coat. Technol., 2006, 201: 2072 | | [11] | Meng X J, Liu X B, Liu H Q, et al.Effects of heat treatment on microstructure and performance of NiCr/Cr3C2-WS2 composite coatings[J]. Trans. Mater. Heat Treat., 2013, 34(S2): 188 | | [11] | (孟祥军, 刘秀波, 刘海青等. 热处理对NiCr/Cr3C2-WS2复合涂层组织与性能的影响[J]. 材料热处理学报, 2013, 34(S2): 188) | | [12] | Sun W C, Zhang F, Zhang P, et al.Influence of heat treatment on microstructure and wear resistance of HVOF WC-17Co coatings[J]. J. China Coal Soc., 2015, 40: 476 | | [12] | (孙万昌, 张峰, 张佩等. 热处理对HVOF WC-17Co涂层组织结构及耐磨性能的影响[J]. 煤炭学报, 2015, 40: 476) | | [13] | Liu Q N, Liu Y, Li F, et al.Effect of heat treatment on micro-structure and wear behaviors of iron-base amorphous alloy coatings[J]. Mater. Sci. Eng. Powder Metall., 2012, 17: 586 | | [13] | (刘倩楠, 刘咏, 李飞等. 热处理对Fe基非晶合金涂层的相组成及摩擦磨损行为的影响[J]. 粉末冶金材料科学与工程, 2012, 17: 586) | | [14] | Ma X, Li Q A, Jing X T.Influence of heat treatment on microstructure and corrosion resistance of Mg-10Gd-2.5Nd-0.5Zr alloy[J]. J. Chin. Soc. Corros. Prot., 2016, 36: 143 | | [14] | (马旭, 李全安, 井晓天. 热处理对Mg-10Gd-2.5Nd-0.5Zr合金组织和耐蚀性能的影响[J]. 中国腐蚀与防护学报, 2016, 36: 143) | | [15] | Fan Z S, Pan J G, Sun D B, et al.Influence of heat treatment on phase structure and wear characteristics of iron base amorphous alloy coatings[J]. Trans. Mater. Heat Treat., 2008, 29(1): 120 | | [15] | (樊自拴, 潘继岗, 孙冬柏等. 热处理对铁基非晶合金涂层相组成及磨损性能的影响[J]. 材料热处理学报, 2008, 29(1): 120) |
|
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
