Effect of Kerosene Flowing Rate on Microstructure and Wearing Properties for Fe-based Amorphous Coatings

Abstract

The effects of kerosene flow rate on the microstructure and wearing properties were investigated for Fe-based amorphous coatings sprayed by High Velocity Oxygen Fuel (HVOF). The microstructures and wearing properties of the Fe-based amorphous coatings were analyzed with scanning electron microscope (SEM), X-ray diffraction analyzer (XRD), and ball-on-disc tribometer (CFT-1), respectively. The experimental results show that the well interfacial bonding can be observed between the amorphous coating layer and the substrate, and the porosity in amorphous coating layer is less to 1%. Only some crystalline α-Fe and FeO phases can be detected by XRD in the amorphous coatings, while the amorphous content is up to 99.4%. The wearing coefficient is near to 0.15, which is superior to SUS316 of 0.28. As the increasing of wearing loads, the failure mode is changed from oxidation wear to the composite of oxidation and abrasive wear.

Keywords

Fe-based amorphous coatings / HVOF / kerosene flow / wear resistance

References

[1] Wang SL, Yi S. The Corrosion Behavior of Fe-based Bulk Metallic Glasses in a Sulfuric Solution at 70 °C[J]. Intermetallics, 2010, 18: 1 950-1 953.

[2] Trexler MM, Thadhani NN. Mechanical Properties of Bulk Metallic Glasses[J]. Prog. Mater Sci., 2010, 55: 759-839.

[3] Liu L, Zhang C. Fe-based Amorphous Coatings: Structures and Prop-erties[J]. Thin Solid Films., 2014, 561: 70-86.

[4] Liang XB, Shang JC, Chen YX, et al. Influence of Ceramic Particles and Process Parameters on Residual Stress of Flame-sprayed Fe-based Coatings[J]. Surf Coat Tech., 2018, 354: 10-17.

[5] Guo WM, Zhang JF, Wu YP, et al. Fabrication and Characterization of Fe-based Amorphous Coatings Prepared by High-velocity Arc Spray-ing[J]. Mater Design, 2015, 78: 118-124.

[6] Zhou YY, Ma GZ, Wang HD, et al. Fabrication and Characterization of Supersonic Plasma Sprayed Fe-based Amorphous Metallic Coatings[J]. Mater. Design, 2016, 110: 332-339.

[7] Wang SL, Cheng JC, Yi SH, et al. Corrosion Resistance of Fe-based Amorphous Metallic Matrix Coating Fabricated by HVOF Thermal Spraying[J]. T. Nonferr Metal. Soc., 2014, 24: 146-151.

[8] Kumar A, Kumar R, Bijalwan P, et al. Fe-based Amorphous / Nano-crystalline Composite Coating by Plasma Spraying: Effect of Heat Input on Morphology, Phase Evolution and Mechanical Properties[J]. J. Alloy Compd., 2019, 771: 827-837.

[9] Lin JR, Wang ZH, Lin PH, et al. Effects of Post Annealing on the Microstructure, Mechanical Properties and Cavitation Erosion Behavior of Arc-sprayed FeNiCrBSiNbW Coatings[J]. Mater. Design, 2015, 65: 1 035-1 040.

[10] Zhou Z, Wang L, Wang FC, et al. Formation and Corrosion Behavior of Fe-based Amorphous Metallic Coatings by HVOF Thermal Spray-ing[J]. Surf Coat Tech., 2009, 204: 563-570.

[11] Qiao L, Wu Y, Hong S, et al. Relationships between Spray Parameters, Microstructures and Ultrasonic Cavitation Erosion Behavior of HVOF Sprayed Fe-based Amorphous/Nanocrystalline Coatings[J]. Ultrason Sonochem, 2017, 39: 39-46.

[12] Zhang C, Zhang ZW, Chen Q, et al. Effect of Hydrostatic Pressure on the Corrosion Behavior of HVOF-sprayed Fe-based Amorphous Coat-ing[J]. J. Alloy Compd., 2018, 758: 108-115.

[13] Wu J, Zhang SD, Sun WH, et al. Enhanced corrosion resistance in Fe-based Amorphous Coatings Through Eliminating Cr-depleted Zones[J]. Corros. Sci., 2018, 136: 161-173.

[14] Jiao J, Luo Q, Wei XS, et al. Influence of Sealing Treatment on the Corrosion Resistance of Fe-based Amorphous Coatings in HCl Solution[J]. J. Alloy Compd., 2017, 714: 356-362.

[15] Wang SL, Li HX, Zhang XF, et al. Effects of Cr Contents in Fe-based Bulk Metallic Glasses on the Glass Forming Ability and the Corrosion Resistance[J]. Mater. Chem. Phys., 2009, 113: 878-883.

[16] Wang G, Huang Z, Xiao P, et al. Spraying of Fe-based Amorphous Coating with High Corrosion Resistance by HVAF[J]. J. Manuf. Proces., 2016, 22: 34-38.

[17] Zhang SD, Wu J, Qi WB, et al. Effect of Porosity Defects on the Long-term Corrosion Behaviour of Fe-based Amorphous Alloy Coated Mild Steel[J]. Corros. Sci., 2016, 110: 57-70.

[18] Wang G, Xiao P, Huang ZJ, et al. Microstructure and Wear Properties of Fe-based Amorphous Coatings Deposited by High-velocity Oxygen Fuel Spraying[J]. J. Iron Steel Res. Int., 2016, 23: 699-704.

[19] Liu G, An YL, Guo ZH, et al. Structure and Corrosion Behavior of Iron-based Metallic Glass Coatings Prepared by LPPS[J]. Appl. Surf. Sci., 2012, 258: 5 380-5 386.

[20] Zhang C, Liu L, Chan KC, et al. Wear Behavior of HVOF-sprayed Fe-based Amorphous Coatings[J]. Intermetallics, 2012, 29: 80-85.