Abstract
Cold spray technology is aimed to produce coatings thanks to the high energy impact of metallic and ceramic particles on similar and dissimilar substrates. The high energy is provided to the impacting particles by high-pressure-carrying gases capable of accelerating the coating material to very high speeds in the order of 1000 m/s. Cold spray temperatures are in the order of 0.6Tm leading the sprayed particles to severely plastic deform at the contact with the substrate or with already deposited coating. In all the technological available coating processes, the intrinsic required properties are mainly thickness, porosity, adhesion strength, deposition efficiency and surface finishing. Among the latter, porosity is the coating property most influencing the mechanical behaviour of the substrate-coating system. The low processing temperatures minimize or eliminate phase transformations and reduce porosity and residual stresses that normally characterize high-temperature thermal spray processes. To take advantage of the material properties of the feedstock powder, cold spraying was developed because phase transformations, chemical changes, residual stresses and porosity are minimized, if not eliminated, in these coatings due to the low processing temperatures and high velocities. Because of its non-combustive nature, cold spray process is of great interest for spraying temperature-sensitive materials such as Ni and Ti. Ni-based coatings are used in applications where wear resistance, combined with corrosion resistance, is required. Ti and its alloys are extensively used for aerospace components that work till elevated temperatures like airframe and jet engine components. The aim of the present chapter is to describe the processing parameters, feedstock properties and materials coupling leading to the coating’s porosity variation and its effect on the mechanical behaviour of the deposited coatings.
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Assadi H, Kreye H, Gartner F, Klassen T (2016) Cold spraying a materials perspective. Acta Mater 116:382–407
Assadi H, Schmidt T, Richter H, Kliemann JO, Binder K, Gärtner F, Klassen T, Kreye H (2011) On parameter selection in cold spraying. J Therm Spray Technol 20(6):1161–1176
Cavaliere P, Perrone A, Silvello A (2014) Mechanical and microstructural behavior of nanocomposites produced via cold spray. Composites B67:326–331
Cavaliere P, Silvello A (2014) Processing parameters affecting cold spay coatings performances. Int J Adv Manuf Technol 71:263–277
Cavaliere P, Silvello A (2015) Mechanical and microstructural behavior of cold-sprayed titanium- and nickel-based coatings. J Therm Spray Technol 24(8):1506–1512
Cavaliere P, Silvello A (2016) Fatigue behavior of cold sprayed metals and alloys: a critical review. Surf Eng 32(9):631–640
Cavaliere P, Silvello A, Cinca N, Canales H, Dosta S, Garcia Cano I, Guilemany JM (2017) Microstructural and fatigue behavior of cold sprayed Ni-based superalloys coatings. Surf Coat Technol doi: https://doi.org/10.1016/j.surfcoat.2017.06.006
Champagne V, Helfritch D (2016) The unique abilities of cold spray deposition. Int Mater Rev 61(7):437–455
Eason PD, Fewkes JA, Kennett SC, Eden TJ, Tello K, Kaufman MJ, Tiryakioglu M (2011) On the characterization of bulk copper produced by cold gas dynamic spray processing in as fabricated and annealed conditions. Mater Sci Eng A528:8174–8178
Feng SQ, Ma B, Wang X-L, Ling G-P (2013) Effects of gas property on quality of NiCoCrAlY coating by cold gas dynamic spraying. Adv Mater Res 815:682–686
Gao P-H, Li C-J, Yang G-J, Li Y-G, Li C-X (2008) Influence of substrate hardness on deposition behavior of single porous WC-12Co particle in cold spraying. Surf Coat Technol 203:384–390
Grujicic M, Saylor JR, Beasley DE, DeRosset WS, Helfritch D (2003) Computational analysis of the interfacial bonding between feed powder particles and the substrate in the cold-gas dynamic spray process. Appl Surf Sci 219:211–327
Grujicic M, Zhao CL, DeRosset WS, Helfritch D (2004) Adiabatic shear instability based mechanism for particle/substrate bonding in the cold-gas dynamic-spray process. Mater Des 25:681–688
Hussain T (2013) Cold spraying of titanium: a review of bonding mechanisms, microstructure and properties. Key Eng Mater 533:53–90
Kalsi SBS, Sidhu TS, Karthikeyan J (2015) Evaluation of NiCoCrAlY coatings deposited on superalloy with novel cold spray process. Surf Eng 31(11):840–845
Kaur N, Kumar M, Sharma SK, Kim DY, Kumar S, Chavan NM, Joshi SV, Singh N (2015) Study of mechanical properties and high temperature oxidation behavior of a novel cold-spray Ni-20Cr coating on boiler steels. Appl Surf Sci 328(15):13–25
Kumar M, Singh H, Singh N, Hong S-M, Choi I-S, Suh J-Y, Chavan NM, Kumar S, Joshi SV (2015) Development of nano-crystalline cold sprayed 20Ni-Cr coatings for high temperature oxidation resistance. Surf Coat Technol 266:122–133
Marrocco T, Hussain T, McCartney DG, Shipway PH (2011) Corrosion performance of laser posttreated cold sprayed titanium coatings. J Therm Spray Technol 20(4):909–917
Rathod WS, Khanna AS, Karthikeyan J, Rathod RC (2014) Effect of N2 and he carrier gases on oxidation behavior of cold sprayed CoNiCrAlY powder to deposit bond coats. T Indian I Metals 67(2):247–262
Moridi A, Hassani-Gangaraj SM, Guagliano M, Dao M (2014) Cold spray coating: review of material systems and future perspectives. Surf Eng 36(6):369–395
Ogawa K, Seo D (2011) In: Benini E (ed) Repair of turbine blades using cold spray technique, Advances in gas turbine technology, ISBN: 978–953–307-611-9, InTech, Available from: http://www.intechopen.com/books/advances-in-gas-turbine-technology/repair-of-turbine-blades-using-coldspray-technique
Singh H, Sidhu TS, Kalsi SS (2015) Microstructure study of cold sprayed 50%Ni-50%Cr coating on Inconel-601. Surf Eng 31(11):825–831
Singh H, Sidhu TS, Kalsi SBS, Karthikeyan J (2016) Evolution of the microstructure by high velocity impacts of particles by cold spray. Surf Coat Technol 31(11):1514–1520
Singh H, Khosla H, Walia GS, Sidhu TS Kalsi SBS, Karthikeyan J (2017) Characteristic study of cold sprayed N06601 superalloy surface. Surf Eng doi: https://doi.org/10.1080/02670844.2017.1312220
Spencer K, Luzin V, Matthews N, Zhang MX (2012) Residual stresses in cold spray Al coatings: the effect of alloying and of process parameters. Surf Coat Technol 206:4249–4255
Sundararajan G, Chavan NM, Kumar S (2013) The elastic modulus of cold spray coatings: influence of inter-splat boundary cracking. J Therm Spray Technol 22(8):1348–1357
Van Steenkiste T, Gorkiewicz DW (2004) Analysis of tantalum coatings produced by the kinetic spray process. J Therm Spray Technol 13:265–273
Wong W, Irissou E, Ryabinin AN, Legoux JG, Yue S (2011) Influence of helium and nitrogen gases on the properties of cold gas dynamic sprayed pure titanium coatings. J Therm Spray Technol 20(1–2):213–226
Wong W, Vo P, Irissou E, Ryabinin AN, Legoux J-G, Yue S (2013) Effect of particle morphology and size distribution on cold-sprayed pure titanium coatings. J Therm Spray Technol 22(7):1140–1153
Yin S, Suo X, Su J, Guo Z, Liao H, Wang X (2014) Effects of substrate hardness and spray angle on the deposition behavior of cold-sprayed ti particles. J Therm Spray Technol 23(1–2):76–83
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Silvello, A. (2018). Porosity of Ni-Based and Ti-Based Cold-Sprayed Coatings. In: Cavaliere, P. (eds) Cold-Spray Coatings. Springer, Cham. https://doi.org/10.1007/978-3-319-67183-3_17
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DOI: https://doi.org/10.1007/978-3-319-67183-3_17
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