(Cr1−xAlx)N: A comparison of direct current, middle frequency pulsed and high power pulsed magnetron sputtering for injection molding components

Bagcivan, Nazlim; Bobzin, Kirsten; Theiß, Sebastian

doi:10.1016/j.tsf.2012.08.056

Cited by 90 publications

(46 citation statements)

References 31 publications

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“…In the XRD patterns from coatings annealed at 800 °C (Figure 7b), it is evident that most of the diffraction curves are similar to those of the as-deposited and 600 °C annealed Figure 6 shows the hardness and elastic modulus values of the AlCrN coatings as a function of charge voltage. The values of coating hardness and elastic modulus in this study are comparable to the values found in other studies [22,26]. As the charge voltage increased, the hardness and elastic modulus of the AlCrN coatings initially increased from 24.4 GPa and 401.6 GPa at 350 V to maximum values of approximately 28.6 GPa and 439.5 GPa at a charge voltage of 450 V, respectively.…”

Section: Chemical Composition Morphology and Phase Structure Of Thesupporting

confidence: 89%

“…Therefore, the phase separation was more apparent in the coatings deposited at high charge voltages (500-550 V). Similar results were reported by Bagcivan et al [26]. In their research, (Cr 1−x Al x )N coatings were deposited by DCMS, MF-MS (Middle Frequency Magnetron Sputtering), and HPPMS techniques, in which the Al/Cr ratios for initial h-AlN formation were compared.…”

Section: Introductionsupporting

confidence: 80%

“…It was found that the formation of h-AlN phase in the HPPMS coatings was much easier than in other techniques. The Al/Cr ratio was high than 50:50 for HPPMS for the first appearance of h-AlN phase, while much higher Al/Cr ratio (77:23) was needed in the DCMS and MF-MS CrAlN coatings [26].…”

Section: Introductionmentioning

confidence: 89%

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Influence of Power Pulse Parameters on the Microstructure and Properties of the AlCrN Coatings by a Modulated Pulsed Power Magnetron Sputtering

Zheng¹,

Zhou²,

Gui³

et al. 2017

Coatings

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Abstract:In this study, AlCrN coatings were deposited using modulated pulsed power magnetron sputtering (MPPMS) with different power pulse parameters by varying modulated pulsed power (MPP) charge voltages (350 to 550 V). The influence of power pulse parameters on the microstructure, mechanical properties and thermal stability of the coatings was investigated. The results indicated that all the AlCrN coatings exhibited a dense columnar microstructure. Higher charge voltage could facilitate a denser coating microstructure. As the charge voltage increased up to 450 V or higher, the microvoids along the column boundaries disappeared and the coatings became fully dense. The main phase in the AlCrN coatings was the c-(Al, Cr)N solid solution phase with NaCl-type phase structure. A diffraction peak of the h-AlN phase was detected at a 2θ of around 33 • , when the charge voltage was higher than 500 V. The hardness of the AlCrN coatings varied as a function of charge voltage. The maximum value of the hardness (30.8 GPa) was obtained at 450 V. All the coatings showed good thermal stability and maintained their structure and mechanical properties unchanged up to 800 • C during vacuum annealing. However, further increasing the annealing temperature to 1000 • C resulted in apparent change in the microstructure and decrease in the hardness. The charge voltages also showed a significant influence on the high-temperature tribological behavior of the coatings. The coating deposited at the charge voltage of 550 V exhibited excellent tribological properties with a low friction coefficient.

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Section: Chemical Composition Morphology and Phase Structure Of Thesupporting

confidence: 89%

Section: Introductionsupporting

confidence: 80%

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Influence of Power Pulse Parameters on the Microstructure and Properties of the AlCrN Coatings by a Modulated Pulsed Power Magnetron Sputtering

Zheng¹,

Zhou²,

Gui³

et al. 2017

Coatings

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“…Further more parameters are available to control the process and finally the mechanical as well as chemical properties of the coating. In this way, HPPMS simplifies coating deposition on complex geometries [22][23][24][25][26]. In addition to that, plasma-based deposition of coating layers has considerable ecological and economic advantages [27,28].…”

Section: Introductionmentioning

confidence: 99%

Cohesize zone‐based modeling of nano‐coating layers for the purpose of establishing process signatures

et al. 2017

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The purpose of this work is to establish the notion of process signatures in the context of manufacture processing. In this context we provide an overview of selected computational approaches which are capable of resolving the basic features of non-linear heterogeneous microstructures and process related boundary and loading conditions. As an example, the cohesize zone element method is employed to predict the state of damage and fracture in coated systems. The latter are composed of CrN-or AlN-based protective coating layers and steel-based substrates. The state of damage and fracture is simulated for nano-indentation tests and discussed at different deformation stages. Furthermore, the influence of residual stresses within the polygrain microstructure on the evolution of damage and fracture is analyzed. Lastly, future developments and computational challenges are discussed.

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“…Al/Cr ratios) on their phase composition [2][24], deposition control parameters [25], [26], and high temperature oxidation properties [18], [19].…”

Section: Introductionmentioning

confidence: 99%

Predicting high temperature mechanical properties of CrN and CrAlN coatings from in-situ synchrotron radiation X-ray diffraction

et al. 2016

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(Cr1−xAlx)N: A comparison of direct current, middle frequency pulsed and high power pulsed magnetron sputtering for injection molding components

Cited by 90 publications

References 31 publications

Influence of Power Pulse Parameters on the Microstructure and Properties of the AlCrN Coatings by a Modulated Pulsed Power Magnetron Sputtering

Influence of Power Pulse Parameters on the Microstructure and Properties of the AlCrN Coatings by a Modulated Pulsed Power Magnetron Sputtering

Cohesize zone‐based modeling of nano‐coating layers for the purpose of establishing process signatures

Predicting high temperature mechanical properties of CrN and CrAlN coatings from in-situ synchrotron radiation X-ray diffraction

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