The Paton Welding Journal, 2011, №04



2011 №04 (04)

2011 №04 (06)

---

The Paton Welding Journal, 2011, #4, 23-26 pages  

DEPOSITION OF TITANIUM-BASED GRADED COATINGS BY LASER CLADDING

V.K. NARVA and A.V. MARANTS

National University of Science and Technology «MISIS», Moscow, Russian Federation
 
 
Abstract
Investigation of the technology of laser cladding of a titanium substrate and analysis of the properties of graded materials of Ti-Si and Ti-NiCr systems were carried out. Cladding was performed in Trumpf DMD 505 laser system of 5 kW power. A graded change in coating properties was determined by scanning electron microscope, optical microscope and X-ray diffraction. Analysis of hardness variations through thickness of the deposited layers was carried out by HV method. The possibility of providing sound graded coatings in order to improve the titanium substrate properties was proved.
 
 
Keywords: laser, laser cladding, graded coatings, titanium base, phase composition, structure, hardness
 
 
Received:                ??.??.??
Published:               28.04.11
 
 
References
1. Toyserkani, E., Khajepour, A., Corbin, S. (2005) Laser cladding. CRC Press.
2. Thivillon, L., Bertrand, Ph., Laget, B. et al. (2009) Potential of direct metal deposition technology for manufacturing thick functionally graded coatings and parts for reactor components. J. Nucl. Mater., 385, 236-241.
3. Nerovny, V.M. (2007) Theory of welding processes. Moscow: N.E. Baumana MGTU.
4. Ocelik, V., De Oliveira, U., De Boer, M. et al. (2007) Thick Co-based coating on cast iron by side laser cladding: Analysis of processing conditions and coating properties. Surface and Coatings Techn., 201, Issue 12, 5875-5883.
5. Yakovlev, A., Trunova, E., Grevey, D. et al. (2005) Laserassisted direct manufacturing of functionally graded 3D objects. Ibid., 190, 15-24.
6. Gaard, A., Krakhmalev, P., Bergstrom, J. (2006) Microstructural characterization and wear behavior of (Fe, Ni)-TiC MMC prepared by DMLS. J. Alloys and Compounds, 421, 166-171.
7. De Nascimento, A.M., Ocelik, V., Lerardi, M.C.F. et al. (2008) Wear resistance of WCp/duplex stainless steel metal matrix composite layers prepared by laser melt injection. Surface and Coatings Techn., 202, 4758-4765.
8. Thivillon, L., Novichenko, D., Bertrand, Ph. et al. (2009) Mechanical properties of parts manufactured by direct metal deposition technology. In: Proc. of 5th Int. WLT-Conf. on Lasers in Manufacturing (Muenich, 2009), 99-103.

---