Investigation on plastic behavior of HPPMS CrN, AlN and CrN/AlN-multilayer coatings using finite element simulation and nanoindentation

Bobzin, Kirsten; Brögelmann, Tobias; Brugnara, Ricardo H.; Arghavani, Mostafa; Yang, Tung Sheng; Chang, Yin-Yu; Chang, Sheng-Yi

doi:10.1016/j.surfcoat.2015.07.081

Cited by 48 publications

(17 citation statements)

References 63 publications

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“…The nanoindentation test is chosen as a well known experimental setup to study the behavior of coating layers. Using the results from nanoindentation tests like load-displacement curves or surface fracture patterns, valuable information regarding the damage resistance of the coating system is obtained [26,31]. A two-dimensional nanoindentation based on the plane-strain assumption and considering symmetric boundary conditions is studied (see Figure 4).…”

Section: Computational Example -Nanoindentationmentioning

confidence: 99%

“…The grain morphology depends on various conditions like the temperature and pressure at which the deposition takes place. The grain morphologies for the simulation (see Figure 5) are generated based on the shapes and average grain sizes observed in the experiments [26]. As the CZ elements are only used to model the interfaces between the grains as well as the interface between the coating and the substrate, the results may be expected to become mesh independent, if the mesh is sufficiently refined.…”

Section: Computational Example -Nanoindentationmentioning

confidence: 99%

“…The mechanical properties of all the CZE are similar and given in Table 1, The CZ parameters are selected based on a qualitative comparison with a similar experimental setup [26].…”

Section: Computational Example -Nanoindentationmentioning

confidence: 99%

“…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%

“…To increase the life time of the coatings, the investigation of their fracture behavior is a crucial point which was discussed by several authors [29][30][31][32]. According to experimental results for the nano coating layers the cracks in coating tend to propagate mainly at the grain boundaries [26]. Such observation encouraged the use of cohesive zone models for the intergranular fracture [33,34].…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Computational Example -Nanoindentationmentioning

confidence: 99%

Section: Computational Example -Nanoindentationmentioning

confidence: 99%

“…The mechanical properties of all the CZE are similar and given in Table 1, The CZ parameters are selected based on a qualitative comparison with a similar experimental setup [26].…”

Section: Computational Example -Nanoindentationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

et al. 2017

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Investigations on Mechanical and Tribological Behavior of dcMS/HPPMS CrN and (Cr,Al)N Hard Coatings Using Nanoscratch Technique

et al. 2017

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In this paper, interfacial adhesion strength and tribological behavior of systems, consisting of CrN and (Cr,Al)N coatings and AISI 420 steel substrate are investigated. The coatings are deposited using a hybrid technology consisting of direct current and high power pulse magnetron sputtering dcMS/HPPMS. Conventional Rockwell and scratch tests as well as nanoscratch analyses are performed. For the nanoscratch tests, a Berkovich and a conical indenters are used. Damage mechanisms are analyzed using Scanning Electron Microscopy (SEM) and explained by the plastic work from the nanoindentation tests. Investigations show a stronger interfacial adhesion strength and a higher abrasion resistance of the system AISI 420/(Cr,Al)N compared to the AISI 420/CrN.

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Residual Stress Analysis in High‐Speed Physical Vapor Deposition Coatings

Bobzin,

Kalscheuer,

Möbius

et al. 2024

Adv Eng Mater

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Several studies focus on impact of residual stress in coatings, predominantly those synthesized by conventional physical vapor deposition (PVD) techniques like arc PVD and magnetron sputtering. High‐speed PVD (HS‐PVD) is based on hollow cathode gas flow sputtering, enabling the deposition of thick coatings s > 20 μm in contrast to the mentioned processes, where coating thickness is limited due to compressive residual stresses. Therefore, the effect of residual stresses on HS‐PVD coatings and adhesion was analyzed for the first time. The aim is to evaluate the influence of diverse substrate materials, different coating systems, and process parameters on the residual stress states in HS‐PVD coatings. Different coating systems like AlCrN and AlCrO are deposited at different reactive gas flows, coating times, and bias voltages. The residual stress of oxide coatings, deposited on cemented carbide and steel X40CrMoV5–1, is analyzed using X‐ray diffraction (XRD) and the sin2ψ method. For AlCrN coatings, in addition to the XRD method, the residual stresses are measured by focused ion‐beam‐digital image correlation ring‐core method to investigate different measuring methods. Both coating systems show higher adhesion strength with increasing thickness. Lower residual compressive stresses are unexpectedly observed at higher coating thickness using both analysis methods.

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Investigation on plastic behavior of HPPMS CrN, AlN and CrN/AlN-multilayer coatings using finite element simulation and nanoindentation

Cited by 48 publications

References 63 publications

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

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

Investigations on Mechanical and Tribological Behavior of dcMS/HPPMS CrN and (Cr,Al)N Hard Coatings Using Nanoscratch Technique

Residual Stress Analysis in High‐Speed Physical Vapor Deposition Coatings

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