Effect of bilayer number on mechanical and wear behaviours of the AlCrN/AlCrMoN coatings by AIP method

Iram, Sidra; Wang, Jianming; Cai, Fei; Zhang, Jiamin; Ahmad, Farooq; Liang, Jiagang; Zhang, Shihong

doi:10.1080/02670844.2020.1809940

Cited by 11 publications

(6 citation statements)

References 36 publications

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“…The good tribological properties of the coating are also noted in [47]. The introduction of Cr into the composition of the (Mo,Al)N coating leads to the formation of two basic phases-CrN and Mo 2 N [39,[47][48][49][50]. A similar effect is also detected upon the introduction of Zr in the composition of the (Mo,Al)N system [40], when two basic phases-ZrN and Mo 2 N-are also formed [40].…”

Section: Introductionmentioning

confidence: 75%

Investigation of the Nature of the Interaction of Me-MeN-(Me,Mo,Al)N Coatings (Where Me = Zr, Ti, or Cr) with a Contact Medium Based on the Ni-Cr System

et al. 2022

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This paper discusses the results of a study focused on the nature of the interaction of Me-MeN-(Me,Mo,Al)N coatings (where Me = zirconium (Zr), titanium (Ti), or chromium (Cr)) with a contact medium based on the Ni-Cr system. The studies were carried out during the turning of nickel–chromium alloy at different cutting speeds. The hardness of the coatings was found, and their nanostructure and phase composition were studied. The experiments were conducted using transmission electron microscopy (TEM), X-ray diffraction (XRD), and selected area electron diffraction (SAED). According to the studies, at elevated cutting speeds, the highest wear resistance is demonstrated by the tools with the ZrN-based coating, while at lower cutting speeds, the tools with the TiN- and CrN-based coatings had higher wear resistance. At elevated cutting speeds, the experiments detected the active formation of oxides in the ZrN-based coating and less active formation of oxides in the CrN-based coating. No formation of oxides was detected in the TiN-based coating. The patterns of cracking in the coatings were also studied.

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Section: Introductionmentioning

confidence: 75%

Investigation of the Nature of the Interaction of Me-MeN-(Me,Mo,Al)N Coatings (Where Me = Zr, Ti, or Cr) with a Contact Medium Based on the Ni-Cr System

et al. 2022

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“…In addition to the elemental composition, the properties of the coatings are significantly affected by the parameters of the coating structure. The transition to the multilayer structure additionally increases the key properties of the coatings [50][51][52]. The application of the multilayer structure with a nanometric thickness of layers improves the properties of the coating, such as resistance to cracking and brittle fracture [51,52], as well as tribological properties [52].…”

Section: Introductionmentioning

confidence: 99%

“…The transition to the multilayer structure additionally increases the key properties of the coatings [50][51][52]. The application of the multilayer structure with a nanometric thickness of layers improves the properties of the coating, such as resistance to cracking and brittle fracture [51,52], as well as tribological properties [52]. Earlier studies of the coatings based on the (Cr,Mo,Al)N system (in particular, Ti-TiN-(Ti,Cr,Mo,Al)N [53], Cr,Mo-(Cr,Mo,Zr,Nb)N-(Cr,Mo,Zr,Nb,Al)N [11], and Cr,Mo-(Cr,Mo)N-(Cr,Mo,Al)N [10]) proved their high efficiency as coatings for cutting tools.…”

Section: Introductionmentioning

confidence: 99%

Wear Resistance, Patterns of Wear and Plastic Properties of Cr,Mo-(Cr,Mo,)N-(Cr,Mo,Al)N Composite Coating with a Nanolayer Structure

2022

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This paper discusses the results of studies focused on the wear resistance, patterns of wear and plastic properties of Cr,Mo-(Cr,Mo,)N-(Cr,Mo,Al)N coating, containing 20 at.% Mo. The coating had a nanolayer structure with a modulation period λ = 50 nm. The studies revealed the hardness, fracture resistance in scratch testing, as well as elemental and phase composition of the coating. The studies of the tool life of carbide cutting tools with the Cr,Mo-(Cr,Mo,)N-(Cr,Mo,Al)N coating proved their longer tool life compared to that of uncoated tools and tools with the reference Cr-(Cr,Al)N coating of equal thickness and equal content of aluminum (Al). The studies included the comparison of the tools coated with Cr,Mo-(Cr,Mo,)N-(Cr,Mo,Al)N and Cr-(Cr,Al)N. The experiments focused on the specific features of the coating nanostructure and were conducted using a transmission electron microscope (TEM), revealing the different mechanisms of fracture. The penetration of particles of the material being machined between nanolayers of the coating results in interlayer delamination. When exposed to a moving flow of the material being machined, plastic deformation (bending) of the coating nanolayers occurs. The diffusion of iron into the coating (up to 200 nm) and diffusion of Cr and Mo into the cut material to a depth of up to 250 nm are observed. The presented information can help in the design of metal cutting tools and the choice of coatings for them.

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“…In previous studies, many novel coating concepts, such as gradient architecture [13,14], multi-component structure [15,16] and multilayered structure [17,18], have been put forward and realized to improve coating performance. Among these structures, the multilayer structure can show a template effect [19].…”

Section: Introductionmentioning

confidence: 99%

Improved thermal stability of AlCrSiN coatings base on the template effect of TiAlN layer

Dai

Zhao

Cao

et al. 2022

Surface Engineering

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TiAlN/AlCrSiN multilayer coatings were prepared by arc ion plating. The implements of various thickness ratio (0, 0.89, 1.04, 1.14 and 1.49) of TiAlN/AlCrSiN on microstructure, mechanical properties and thermal stability of TiAlN/AlCrSiN multilayer coatings were investigated. The AlCrSiN single coating without TiAlN inserted layer exhibits a mixed-phase structure of c-AlN and c-CrN, while TiAlN/AlCrSiN multilayer coatings show a single-phase cubic structure. As the thickness ratio of TiAlN/AlCrSiN increases, the critical load of multilayer coating gradually increases up to 99 N, the hardness decreases and the thermal stability improved. The TiAlN/ AlCrSiN multilayer coating with a high thickness ratio of 1.49 was able to maintain a single (200) preferred c-TiAlN/AlCrN solid solution phase structure after annealing at 800°C in Ar for 2 h. The obtained single-phase cubic structure of AlCrSiN at room temperature and the improved thermal stability properties can be explained by the template effect of TiAlN on the AlCrSiN.

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Effect of bilayer number on mechanical and wear behaviours of the AlCrN/AlCrMoN coatings by AIP method

Cited by 11 publications

References 36 publications

Investigation of the Nature of the Interaction of Me-MeN-(Me,Mo,Al)N Coatings (Where Me = Zr, Ti, or Cr) with a Contact Medium Based on the Ni-Cr System

Investigation of the Nature of the Interaction of Me-MeN-(Me,Mo,Al)N Coatings (Where Me = Zr, Ti, or Cr) with a Contact Medium Based on the Ni-Cr System

Wear Resistance, Patterns of Wear and Plastic Properties of Cr,Mo-(Cr,Mo,)N-(Cr,Mo,Al)N Composite Coating with a Nanolayer Structure

Improved thermal stability of AlCrSiN coatings base on the template effect of TiAlN layer

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