The effect of rapid thermal processing (RTP) on TiN coatings deposited by PVD and the steel-turning performance of coated cemented carbide

Perry, A.J.; Matossian, J. N.; Bull, Steve; Proskurovsky, D.I.; Rice-Evans, P.C.; Page, T. F.; Geist, Daniel E.; Taylor, John; Vajo, John J.; Doty, Robert E.; Ротштейн, В. П.; Markov, A. B.

doi:10.1016/s0257-8972(99)00385-0

Cited by 8 publications

(2 citation statements)

References 17 publications

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“…This is because the surface temperature increases during HCPEB irradiation, which causes the reaction between TiN, Al 2 O 3 , and TiCN coatings. In the process of repeated heating, melting, expansion eruption, and cooling solidification, the interface between coatings produces mismatched thermal stress [9], which results in a large number of pores and voids. The line scan data (Figure 6d) shows that the TiCN and Al 2 O 3 curves are tighter than the original coating.…”

Section: Microstructure Analysismentioning

confidence: 99%

“…TiN is a very hard and wear-resistant material that is widely used in various industries on account of its high hardness and chemical stability. The thermal expansion coefficient of TiN is similar to that of high-speed steel, and the thermal stress generated during the cutting process is small, so it is the earliest coating material used on the surface of high-speed steel tools [8,9]. In addition, TiN also has a wide range of applications in molds, medical devices, auto parts, and decorative coatings [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

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Microstructure and Properties of TiN/TiCN/Al2O3/TiN Coating Enhanced by High-Current Pulsed Electron Beam

Ge,

Xia,

Yuan

et al. 2024

Coatings

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In this work, a TiN/TiCN/Al2O3/TiN coating deposited onto cemented carbide matrix by chemical vapor deposition was irradiated by high-current pulsed electron beam (HCPEB). The influence of pulse times on the phase composition, microstructure, and mechanical properties of the coating investigated. The results showed that no new phase was produced, the grain size of the coating surface was refined, the surface became flat, and the surface roughness decreased after HCPEB treatment. The TiN/TiCN/Al2O3/TiN coating presented a smooth surface with good mechanical performance after HCPEB. A maximum hardness was obtained after 15 pulses, and the 15-pulse irradiated coating showed better wear resistance. The improvement in the coating’s performance after irradiation was mainly attributed to the formation of grain refinement and crystal defects, as well as the change of stress field inside the coating. The objective of this study was to evaluate the potential of HCPEB modification in the preparation of high-performance coating by analyzing the microstructure and property of coating under different pulses.

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Section: Microstructure Analysismentioning

confidence: 99%