Structure and Properties of (Ti,Cr)N Films by Arc Ion Plating

2014 ◽  
Vol 875-877 ◽  
pp. 218-222
Author(s):  
Mei Dong Huang ◽  
Li Xue ◽  
Fan Yu Meng ◽  
Hong Yu Li ◽  
Xi Ying Fan
Keyword(s):  
Mechanical Properties ◽  
High Speed ◽  
Steel Substrate ◽  
High Speed Steel ◽  
Negative Bias ◽  
Nitrogen Flow ◽  
Arc Ion Plating ◽  
Ion Plating ◽  
Elastic Module ◽  
Deposition Parameters

Ti,Cr)N films were fabricated on the well-polished high-speed-steel substrate under various deposition conditions by arc ion plating. X-ray diffraction was employed to characterize the phase and microstructure of the films, and the preferred orientation of the crystalline plane was discussed in terms of negative bias and nitrogen flow, respectively. The morphology of the films was investigated using scanning electron microscopy. The size and density of macro-particles were compared for different bias and nitrogen flow. The mechanical properties of the films were investigated. The hardness and elastic module were tested by the XP nanoindenter. The results show that the size as well as the number of the macro-particles decreases with increasing negative bias, presenting a smoother surface. The films have preferred (111) plane at low biases but (200) plane at high ones. The hardness and elastic modulus of (Ti,Cr)N films increases with increasing negative bias. Larger hardness can be achieved by increasing nitrogen flow. It is found that the mechanical properties, such as hardness and elastic module of (Ti, Cr)N films are better than those of TiN films, according to the comparison of the experimental results. It indicates that the mechanical properties of TiN can be enhanced by doping Cr. The mechanism is also discussed and analysed by taking deposition parameters into account.

The Effect of Deposition Parameters on the Structural and Mechanical Properties of BN Coatings Deposited onto High-Speed Steel by the PLD Method

2015 ◽  
Vol 220-221 ◽  
pp. 737-742
Author(s):  
Krzysztof Gocman ◽  
Tadeusz Kałdoński ◽  
Waldemar Mróz ◽  
Bogusław Budner
Keyword(s):  
Mechanical Properties ◽  
High Speed ◽  
High Speed Steel ◽  
Rf Discharge ◽  
Internal Stresses ◽  
Force Microscopy ◽  
Gas Nitriding ◽  
Atomic Force ◽  
Deposition Parameters ◽  
Steel Substrates

Boron nitride coatings have been deposited onto high-speed steel substrates using pulsed laser deposition technique combined with RF-discharge. In order to improve adhesion and reduce internal stresses, substrates were subjected to gas nitriding. The structure and morphology of coatings were investigated applying atomic force microscopy (AFM) and FTIR spectroscopy. Nanohardness and elastic modulus were examined employing a nanoanalyzer (CETR). On the basis of the conducted experiments, stable, crystalline, multiphase coatings have been obtained. It has been proved that morphology, structure and mechanical properties strongly depend on the parameters of the PLD process; in particular, the temperature of the substrate has a crucial influence on the properties of BN coatings.

Microstructure and Corrosion Resistance of TiN Coating on HSS by Pulsed Bias Cathodic Arc Ion Plating

2011 ◽  
Vol 675-677 ◽  
pp. 1307-1310 ◽  
Author(s):  
Xiao Hong Yao ◽  
Bin Tang ◽  
Lin Hai Tian ◽  
Xiao Fang Li ◽  
Yong Ma
Keyword(s):  
Corrosion Resistance ◽  
High Speed ◽  
High Speed Steel ◽  
Corrosion Current ◽  
Scratch Test ◽  
Grain Structure ◽  
Tin Coating ◽  
Arc Ion Plating ◽  
Ion Plating ◽  
Cathodic Arc

TiN coating with thickness of 2.5μm was deposited on high-speed steel (HSS) substrate by pulsed bias cathodic arc ion plating. The surface and cross-section morphologies, composition depth profile and phase structure were characterized by FESEM, GDOES and XRD, respectively. Scratch test for adhesion evaluation, microhardness test for hardness measurement, and potentiodynamic polarization for corrosion resistance test were used. The results show that the TiN coating exhibits smooth surface, dense columnar grain structure and an obviously preferred orientation of TiN(111). The adhesion of the coating to substrate is exceeded more than 100N. The hardness of the coating is about 26 GPa. The low corrosion current density (Icorr) and rather high corrosion potential (Ecorr) value imply that the TiN coating displays a good corrosion resistance in 0.5mol/l NaCl solution. However, pitting is still existed due to the defects in the coating.

The Structure and Mechanical Properties of Me/MeN/TiAlN Trilaminar Coatings Deposited by a Hybrid PVD Coating Technique

2013 ◽  
Vol 423-426 ◽  
pp. 704-713
Author(s):  
Guang Xian ◽  
Hai Bo Zhao ◽  
Hong Yuan Fan ◽  
Hao Du
Keyword(s):  
Mechanical Properties ◽  
High Speed ◽  
Steel Substrate ◽  
High Speed Steel ◽  
Columnar Structure ◽  
X Ray ◽  
Coating Technique ◽  
Pvd Coating ◽  
Structure Of Coatings ◽  
Fracture Appearance

The purpose of this study is to investigate the microstructure, mechanical properties and adhesion of Ti/TiN/TiAlN and Zr/ZrN/TiAlN trilaminar coatings, which were deposited on the high-speed steel substrate and cement carbide substrate by a hybrid PVD coating technique. X-ray diffraction technique (XRD) was used to reveal the structure of coatings. The fracture appearance of coatings was presented by scanning electron microscopy (SEM) and the element content was characterized by energy dispersive X-ray (EDX). Hardness and Yong's modulus were measured by using a nanoindentation technique and the adhesion of coatings was carried out with Rockwell HRC indentations. The results showed that all the coatings present a fcc B1 (NaCl type) structure and the TiN (111) is the dominant orientation. The TiAlN coatings with Ti/TiN interlayer presented a typical columnar structure, while the columnar structure became ambiguous in TiAlN coatings with Zr/ZrN interlayer. The chemical composition of TiAlN coatings is almost unacted on the inner interlayer. The hardness of the coatings on CC substrate is greater than that of on HSS substrate. However, the Ti/TiN/TiAlN coatings on HSS substrate has the maximum theH3/E*2ratio at 0.178 with a lowest hardness. The adhesion of Ti/TiN/TiAlN and Zr/ZrN/TiAlN coatings on CC substrate is remarkable greater than the adhesion of same coatings on HSS substrate.

A Study on Magnetic Filter Controlling TiN Films Prepared by Arc Ion Plating

2011 ◽  
Vol 117-119 ◽  
pp. 1071-1075 ◽  
Author(s):  
Xin Wei Shi ◽  
Xing Rui Li ◽  
Ning Yao ◽  
Xin Chang Wang ◽  
Kai Lan Song ◽  
...  
Keyword(s):  
High Speed ◽  
High Speed Steel ◽  
X Ray Diffraction ◽  
Adhesion Properties ◽  
Arc Ion Plating ◽  
Ion Plating ◽  
Crack Propagation Resistance ◽  
Magnetic Filter ◽  
Film Adhesion ◽  
Tin Thin Films

TiN thin films were deposited by Arc Ion Plating(AIP) with or without Magnetic Filter(AIP or MFAIP) on silicon(Si) and high-speed steel(HSS) substrates,respectively.Scanning Electron Microscope(SEM),X-ray Diffraction(XRD),nanoindentation and microscratch tests were applied for microstructure and property investigation.SEM data showed that the AIP films are plagued with macro-particles(MPs),while the MFAIP films have no or less MPs.XRD showed that the MFAIP films have more obvious preferred orientation at (111) than the AIP films.Scratch Crack Propagation Resistance(CPRs) was introduced to evaluate the film adhesion properties in a scratch test.MFAIP films had higher adhesion.AIP films were susceptible to failure as the CPRs was lower.The MFAIP films had higher hardness than the AIP ones, due to the reason of less MPs in MFAIP films and more obvious preferred orientation.It was proposed that the MPs were effectively removed with the magnetic filter, so the properties of the MFAIP films were greatly improved.

Characteristic of TiN Film Prepared by Multi-Arc Ion Plating

2013 ◽  
Vol 446-447 ◽  
pp. 254-258
Author(s):  
Shun Qiang Hou ◽  
Jing Jie Dai ◽  
Xing Song ◽  
Yuan Yuan Song ◽  
Zhong Hou Li
Keyword(s):  
Wear Resistance ◽  
Bonding Strength ◽  
High Speed ◽  
High Speed Steel ◽  
Arc Ion Plating ◽  
Ion Plating ◽  
Tin Film ◽  
Black Spots ◽  
White Spots ◽  
Improve Wear Resistance

Multi-arc ion plating technique was used to fabricate TiN film on the surface of high speed steel (HSS) to improve its wear resistance. The structure and morphology of TiN film were analyzed by XRD and SEM,and the bonding strength between the film and substrate was studied by the scratch tester. The results show that the thin film formed on the surface of the substrate consists of compact TiN. There are some white spots and black spots on the surface of the film. The bonding strength between the film and the substrate reaches 43 N/mm2, which correlates to formation of a pseudo diffusion layer. The tribological experimental results show that plating TiN film can greatly improve wear resistance of HSS.

ADHERENT NANO-SUPERHARD TITANIUM NITRIDE FILM AND ITS FORMING MECHANISM IN MULTI-ARC ION-PLATING SYSTEM

2007 ◽  
Vol 14 (04) ◽  
pp. 789-793
Author(s):  
XIANG YU ◽  
CHENGBIAO WANG ◽  
MENG HUA ◽  
PUILAM TAM ◽  
YANG LIU ◽  
...  
Keyword(s):  
Titanium Nitride ◽  
High Speed ◽  
High Speed Steel ◽  
Nitride Film ◽  
Arc Ion Plating ◽  
Forming Mechanism ◽  
Ion Plating ◽  
Substrate Adhesion ◽  
Tin Film ◽  
Titanium Nitride Film

An adherent nano-superhard titanium nitride ( TiN ) film on the substrate of Cr 12 Mo 4 V high speed steel was prefabricated in a vacuum cathode multi-arc ion-plating system. Microhardness, film-to-substrate adhesion, and microstructure of the film were investigated typically using Vickers hardometer, scratch tester, and X-ray diffractometer. Results show that: (i) the achievable film microhardness is in the range of 35–45 GPa; (ii) the critical load (Lc) of the superhard TiN film is approximately 64 N; (iii) the nm scale mean main grain sizes of the film are approximately of 12.7 nm for TiN 111, 19.7 nm for TiN 200, and 9.6 nm for TiN 220; and (iv) compared with the standard TiN film with the hardness of 22 GPa, the accomplishment of the nano-superhard TiN film may be due to (a) the ion bombardment induced residual stress within the film, and (b) the combined effect of the decrease of crystalline size and preferred orientation in the plane (111).

Effect of Interlayers on the Structure and Properties of TiAlSiN Coatings Deposited on High-Speed Steel Substrate

2013 ◽  
Vol 842 ◽  
pp. 302-306
Author(s):  
Hao Du ◽  
Hai Bo Zhao ◽  
Ji Xiong ◽  
Lin Lin Wang ◽  
Guang Xian
Keyword(s):  
Mechanical Properties ◽  
High Speed ◽  
Crystal Morphology ◽  
Steel Substrate ◽  
High Speed Steel ◽  
Structure And Properties ◽  
Predominant Orientation ◽  
Tialsin Coating ◽  
Morphology And Mechanical Properties ◽  
Coating Growth

TiAlSiN coatings with Ti or Cr interlayers were deposited on high-speed steel using magnetron sputtering methods. The structure, crystal morphology and mechanical properties were investigated systematically. The results show that (200) is the dominant preferred orientation in Ti/TiAlSiN coating, while (111) become the predominant orientation of the deposited Cr/TiAlSiN coating, which is related to the surface energy. Due to the changes of the coating growth style, the Cr/TiAlSiN coating shows columnar crystals morphology. The Ti/TiAlSiN coating performs better adhesion and H/E ratio, which is proved to have better wear resistance. But the specimens with Cr interlayer have better hardness and elastic modulus, which is due to the growth style of the crystals.

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