Evaluation of Tool Performance With Nanocrystalline Multilayer Coatings on the Machinability of Superalloy Inconel 718

Document Type : Persian


1 M.Sc., Department of Mechanical Engineering, Isfahan University of Technology

2 Assistant Professor, Department of Nanotechnology Engineering, Faculty of Advanced Sciences and Technology, University of Isfahan.

3 Ph.D. Student, Department of Mechanical Engineering, University of Birjand

4 Lecturer, Islamic Azad University, Khomeinishahr Branch


In this paper, the performance of the cutting tool with nanocrystalline multilayer coatings (TiN+TiAlN) for machining of superalloy Inconel 718 in the dry and wet conditions was studied. The multi layer TiN and TiAlN with nanocrystalline structure was applied by physical vapor deposition technique (arc evaporation) on the WC-Co inserts. The results of the ball on disc wear test and the machining of superalloy Inconel 718 in wet and dry conditions indicated that the nanocrystalline coatings could produce better performance of tools in turning. Abrasion and adhesive wear resistance improved by nanocrystalline and modified Aluminum composition in TiAlN coating as well as toughness and thermal stability.


[1] Wang Z.M., Titanium alloys and their machinability with coated
carbide inserts,  Ph.D Thesis, South Bank University, London, 1997.
[2] Thakur D.G., Ramamoorthy B., Vijayaraghavan L., Study on the machinability characteristics of superalloy Inconel 718 during high speed turning, Materials & Design, Vol. 30, Issue 5, May 2009, pp. 1718-1725.
 [3] Khrais S.K., Lin Y.J., Wear mechanisms and tool performance of TiAlN PVD coated inserts during machining of AISI 1440 steel, Wear,Vol. 262, Issues 1–2, 4 January 2007, pp. 64-69.
[4] Ezugwu E.O., Wang Z.M., Performance of PVD and CVD coated tools when machining nickel-based Inconel 718 alloy, in: N. Narutaki, et al. (Eds.), Progress of Cutting and Grinding, Vol. 111, 1996,  pp. 102–107.
[5] Liao Y.S., Lin H.M., Wang J.H., Behaviors of end milling Inconel 718 superalloy by cemented carbide tools, Journal of Materials Processing Technology, Vol. 201, Issues 1–3, 26 May 2008, pp. 460-465.
[6] Kamata Y., Obikawa T., High speed MQL finish-turning of Inconel 718 with defferent coated tools, Journal of Materials Processing Technologhy, Vol. 192-193, October 2007, pp. 281-286.
[7] Fox-Rabinovich G.S., Beake B.D., Endrion J.L., Veldhuis S.C., Parkinson R., Shuster L.S., Migranov M.S., Effect of mechanical properties measured at room and elevated temperatures on the wear resistance of cutting tools with TiAlN and AlCrN coatings, Surface and Coatings Technology, Vol. 200, Issues 20-21, 22 May 2006, pp. 5738-5742.
[8] Devillez A, Schneider F., Dominiak S., Dudzinski D., Larrouquere D., Cutting forces and wear in dry machining of Inconel 718 with coated carbide tools, Wear, Vol. 262, Issues 7-8, 15 March 2007, pp. 931-942.
[9] Ezugwu E.O., Key improvements in the machining of difficult-to-cut aerospace superalloys, International Journal of Machine Tools and Manufacture, Vol. 45 Issues 12-13, October 2005, pp. 1353-1367.
[10] Biksa A., Yamamoto K., Dosbaeva G., Veldhuis S.C., Fox-Rabinovich G.S., Elfizy A., Wagg T., Shuster L.S., Wear behavior of adaptive nano-multilayered AlTiN/MexN PVD coatings during machining of aerospace alloys, Tribology Interamtional, Vol. 43, Issue 8, August 2010, pp. 1491-1499.
[11] Prengel H.G., Jindal P.C., Wendt K.H., Santhanam A.T., Hegde P.L., Penich R.M., A new class of high performance PVD coatings for carbide cutting tools, Surface and Coatings Technology, Vol. 139, Issue 1, May 2001, pp. 25-34.
[12] Knutsson A, Johansson M.P., Karlsson L., Oden M., Machining performance and decomposition of TiAlN/TiN multilayer coated metal cutting inserts, Surface and Coatings Technology, Vol. 205, Issue 16, 15 May 2011, pp. 4005-4010.
[13] Derflinger V.H., Schutze A., Anter M., Mechanical and Structural properties of various alloyed TiAlN-based hard coatings, Surface and Coatings Technology, Vol. 200, Issues 16-17, 27 April 2006, pp. 4693-4700.
[14] Fox-Ravinovich G.S., Weatherly G.C., Dodonov A.I., Kovalev A.I., Shuster L.S., Veldhuis S.C., Dosbaeva G.K., Wainstein D.L., Migranov M.S., Nano-crystalline filtered arc deposited (FAD) TiAlN PVD coatings for high-speed machining applications, Surface and Coatings Technology, Vol. 177-178, 30 January 2004, pp. 800-811.
[15] Walsh R., Hndbook of Machining and Metalworking Calculations, ISBN-13: 978-0071360661, December 22, 2000.
 [16] Devia D.M., Restrepo-Parra E.,Arango P.J., Tschiptschin A.P., Velez J.M., TiAlN coatings deposited by triode magnetron sputtering varying the bias voltage, Applied Surface Science, Vol. 257, Issue 14, 1 May 2011, pp. 6181-6185.