1. Hunan Metallurgy Material Institute Co., Ltd., Changsha 410014, China; 2. Hunan Provincial Key Laboratory of Advanced Materials for New Energy Storage and Conversion,Hunan University of Science and Technology, Xiangtan 411201, China; 3. State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
Abstract：The iron-based amorphous coatings were prepared by detonation spray under three kinds of oxygen fuel ratios. The microstructure and nanoindentation behavior were examined by XRD, SEM and nanoindenter. The results show that the amorphous phase contents of coatings under 1:1, 1.2:1 and 1.5:1 are calculated to be 88.71%, 86.18% and 81.36%, respectively. The variation speeds of indentation depth are similar under different load, indicating the homogenous coating structure. In similar position, the coatings under oxygen fuel ratios of 1:1 and 1.2:1 have higher hardness, exhibiting smaller maximum indentation depth. In the longitudinal direction, the variation of nanohardness is very small. In the transverse direction, the nanohardness value decreases from 16.75 GPa to 10.25 GPa with increasing the distance from the coating to the substrate.
[1] WANG Y, XING Z Z, LUO Q, et al.Corrosion and erosion- corrosion behaviour of activated combustion high-velocity air fuel sprayed Fe-based amorphous coatings in chloride-containing solutions[J]. Corrosion Science, 2015, 98: 339-353. [2] KOGA G Y, NOGUEIRA R P, ROCHE V, et al.Corrosion properties of Fe-Cr-Nb-B amorphous alloys and coatings[J]. Surface and Coatings Technology, 2014, 254: 238-243. [3] LOUZGUINE-LUZGIN D V, BAZLOV A I, KETOV S V, et al. Crystallization behavior of Fe- and Co-based bulk metallic glasses and their glass-forming ability[J]. Materials Chemistry and Physics, 2015, 162: 197-206. [4] INOUE A, KONG F L, MAN Q K, et al.Development and applications of Fe- and Co-based bulk glassy alloys and their prospects[J]. Journal of Alloys and Compounds, 2014, 615: S2-S8. [5] MILANTI A, MATIKAINEN V, KOIVULUOTO H, et al.Effect of spraying parameters on the microstructural and corrosion properties of HVAF-sprayed Fe-Cr-Ni-B-C coatings[J]. Surface and Coatings Technology, 2015, 277: 81-90. [6] WANG G, HUANG Z, XIAO P, et al.Spraying of Fe-based amorphous coating with high corrosion resistance by HVAF[J]. Journal of Manufacturing Processes, 2016, 22: 34-38. [7] GUO H, ZHANG S, SUN W, et al.Differences in dry sliding wear behavior between HVAF-sprayed amorphous steel and crystalline stainless steel coatings[J]. Journal of Materials Science and Technology, 2019, 35(5): 865-874. [8] KOMAKI M, MIMURA T, KUSUMOTO Y, et al.Formation of Fe-based amorphous coating films by thermal spraying technique[J]. Materials Transactions, 2010, 51(9): 1581-1585. [9] CHU Z, YANG Y, CHEN X, et al.Characterization and tribology performance of Fe-based metallic glassy composite coatings fabricated by gas multiple-tunnel plasma spraying[J]. Surface and Coatings Technology, 2016, 292: 44-48. [10] PIAO Z Y, XU B S, WANG H D, et al.Characterization of Fe-based alloy coating deposited by supersonic plasma spraying[J]. Fusion Engineering and Design, 2013, 88(11): 2933-2938. [11] ZHOU Z, WANG F C, LIU Y B.Formation and corrosion behavior of Fe-based amorphous metallic coatings prepared by detonation gun spraying[J]. Transactions of Nonferrous Metals Society of China, 2009, 19: s634-s638. [12] WU H, LAN X D, LIU Y, et al.Fabrication, tribological and corrosion behaviors of detonation gun sprayed Fe-based metallic glass coating[J]. Transactions of Nonferrous Metals Society of China, 2016, 26(6): 1629-1637. [13] 解路, 熊翔, 王跃明. 氧燃比对爆炸喷涂铁基非晶涂层结构和摩擦磨损性能的影响[J]. 粉末冶金材料科学与工程, 2019, 24(3): 261-266. XIE Lu, XIONG Xiang, WANG Yueming. Effects of oxygen fuel rate on microstructure and wear properties of denotation sprayed iron-based amorphous coatings[J]. Materials Science and Engineering of Powder Metallurgy, 2019, 24(3): 261-266. [14] ULIANITSKY V Y, DUDINA D V, BATRAEV I S, et al.Detonation spraying of titanium and formation of coatings with spraying atmosphere-dependent phase composition[J]. Surface and Coatings Technology, 2015, 261: 174-180. [15] GAVRILENKO T P, UL'YANITSKII V Y. Application of propane-butane in detonation deposition facilities[J]. Combustion Explosion and Shock Waves, 2011, 47(1): 81-86. [16] GAVRILENKO T P, NIKOLAEV Y A.Calculation of detonation gas spraying[J]. Combustion Explosion and Shock Waves, 2007, 43(6): 724-731. [17] ULIANITSKY V, SHTERTSER A, ZLOBIN S, et al.Computer-controlled detonation spraying: From process fundamentals toward advanced applications[J]. Journal of Thermal Spray Technology, 2011, 20(4): 791-801. [18] ZHANG C, LIU L, CHAN K C, et al.Wear behavior of HVOF-sprayed Fe-based amorphous coatings[J]. Intermetallics, 2012, 29: 80-85. [19] YUGESWARAN S, KOBAYASHI A, SURESH K, et al.Wear behavior of gas tunnel type plasma sprayed Zr-based metallic glass composite coatings[J]. Applied Surface Science, 2012, 258(22): 8460-8468. [20] LI Z, ZHANG C, LIU L.Wear behavior and corrosion properties of Fe-based thin film metallic glasses[J]. Journal of Alloys and Compounds, 2015, 650: 127-135. [21] INOUE A, SHEN B L, CHANG C T.Super-high strength of over 4 000 MPa for Fe-based bulk glassy alloys in [(Fe1-xCox)0.75B0.2Si0.05]96Nb4 system[J]. Acta Materialia, 2004, 52(14): 4093-4099. [22] QIAO J H, JIN X, QIN J H, et al.A super-hard super hydrophobic Fe-based amorphous alloy coating[J]. Surface and Coatings Technology, 2018, 334: 286-291. [23] ZHU L N, XU B S, WANG H D, et al.On the evaluation of residual stress and mechanical properties of FeCrBSi coatings by nanoindentation[J]. Materials Science and Engineering A, 2012, 536: 98-102. [24] WANG A N, HUANG J H, HSIAO H W, et al.Residual stress measurement on TiN thin films by combing nanoindentation and average X-ray strain (AXS) method[J]. Surface and Coatings Technology, 2015, 280: 43-49.
2020, Vol. 25 
