Finite Element Modeling and Analysis of Powder Stream in Low Pressure Cold Spray Process

被引：2

作者：

Goyal T. ^{[1
]}

Walia R.S. ^{[2
]}

Sharma P. ^{[3
]}

Sidhu T.S. ^{[4
]}

机构：

[1] Shaheed Udham Singh (SUS) College of Engineering and Technology, Tangori, Mohali, 140306, Punjab

[2] Delhi Technological University, New Delhi, 110042, Delhi

[3] ISGEC Heavy Engineering Limited, Yamunanagar, 135001, Haryana

[4] Shaheed Bhagat Singh State Technical Campus (SBSSTC), Ferozepur, 152004, Punjab

来源：

Journal of The Institution of Engineers (India): Series C | 2016年 / 97卷 / 03期

关键词：

CFD; FEM; LPGDS; Modeling;

D O I：

10.1007/s40032-016-0234-0

中图分类号：

学科分类号：

摘要：

Low pressure cold gas dynamic spray (LPCGDS) is a coating process that utilize low pressure gas (5–10 bars instead of 25–30 bars) and the radial injection of powder instead of axial injection with the particle range (1–50 μm). In the LPCGDS process, pressurized compressed gas is accelerated to the critical velocity, which depends on length of the divergent section of nozzle, the propellant gas and particle characteristics, and the diameters ratio of the inlet and outer diameters. This paper presents finite element modeling (FEM) of powder stream in supersonic nozzle wherein adiabatic gas flow and expansion of gas occurs in uniform manner and the same is used to evaluate the resultant temperature and velocity contours during coating process. FEM analyses were performed using commercial finite volume package, ANSYS CFD FLUENT. The results are helpful to predict the characteristics of powder stream at the exit of the supersonic nozzle. © 2016, The Institution of Engineers (India).

引用

页码：331 / 344

页数：13

共 25 条

[1]

Tokarev A.O., Structure of aluminum powder coatings prepared by cold gas dynamic spraying, Met. Sci. Heat Treat., 38, 3, pp. 136-139, (1996)

[2]

McCune R.C., Papyrin A.N., Hall J.N., Riggs W.L., Zajchowski P.H., Berndt C.C., Sampath S., An exploration of the cold gas-dynamic spray method for several material systems, Thermal Spray Science and Technology

[3]

ASM International, pp. 1-5, (1995)

[4]

A systematic approach to material eligibility for the cold spray process, International Thermal Spray Conference and Exhibition, pp. 5-8, (2003)

[5]

Particle-substrate interactions in cold gas dynamic spraying, International Thermal Spray Conference and Exhibition, pp. 5-8, (2003)

[6]

Assadi H., Gartner F., Stoltenhoff T., Kreye H., Bonding mechanism in cold gas spraying, Acta Mater., 51, pp. 4379-4394, (2003)

[7]

Gärtner Numerical and microstructural investigations of the bonding mechanisms in cold spraying, International Thermal Spray Conference and Exhibition, pp. 5-8, (2003)

[8]

Maev R.G.R., Leshchynsky V., Introduction to Low Pressure Gas Dynamic Spray Physics and Technology, (2008)

[9]

Alkhimov A.P., Papyrin A.N., Dosarev V.F., Nestorovich N.I., Shuspanov M.M., Gas dynamic spraying method for applying a coating, U.S Patent, 5, 302, pp. 412-414, (1994)

[10]

Dykhuizen R.C., Smith M.F., Gas dynamic principles of cold spray, J. Therm. Spray Technol., 7, 2, pp. 205-212, (1998)

← 1 2 3 →