Powder metallurgic fabricated plug targets for the synthesis of AlCrSiWN multicomponent coating systems

Tillmann, Wolfgang; Fehr, Alexander; Stangier, Dominic

doi:10.1016/j.ijrmhm.2019.105081

Cited by 5 publications

(4 citation statements)

References 37 publications

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“…According to our previous study, slight Si (~3 at.%) and W (~1.6 at.%) incorporations, which were accompanied by a decrease in the aluminum content, can also result in a significant coarsened columnar growth of AlCrSiWN when compared to AlCrN. It is assumed that tungsten played a significant role in the coarsening of the morphology due to its higher atomic weight [14]. Alloying AlCrSiN with 11.7 to 14.7 at.% tungsten, by contrast, resulted in a clearly denser film growth.…”

Section: Microstructurementioning

confidence: 94%

“…In our recent studies, we have investigated the sputtering of AlCrSiWN using targets that include all coating constituents. In particular, the inert sputtering behavior of tungsten became obvious within these studies [13,14], since the crystallization of W x N y is complex based on the transformations of α-W to fcc W 2 N and to hex WN [15]. This behavior, however, can be influenced by HiPIMS processes with adaptions of the magnetic field strength and the pulsing configuration supporting the growth of dense tungsten nitrides [16].…”

Section: Introductionmentioning

confidence: 99%

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Impact of Tungsten Incorporation on the Tribomechanical Behavior of AlCrWxSiN Films at Room and Elevated Temperature

2021

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AlCrWxSiN thin films (0 ≤ x ≤ 17.1 at.%) were synthesized by means of a hybrid magnetron sputtering process, merging direct current (DC) as well as tungsten high power impulse magnetron sputtering (HiPIMS) supplies. The influences of increasing the tungsten contents on the structural as well as the friction and wear behavior at room and high temperatures (500 °C) were elaborated. As a reference, a W61.4N38.6 system served to analyze synergetic effects on the oxidation behavior. Increased tungsten contents in AlCrWxSiN resulted in more distinctive (200)-, (202)-, and (311)- crystal orientations. A W/Cr ratio of ~1 could be correlated with a denser film growth, the highest hardness (24.3 ± 0.7 GPa), and a significantly decreased wear coefficient (<0.3 × 10−5 mm3/Nm). Tribological tests performed at room temperature revealed that the coefficient of friction decreased with higher tungsten contents to µ~0.35. In contrast, at elevated temperatures, the coefficient of friction increased with higher W concentrations due to spotty oxidations in the wear track, which resulted in a locally increased surface roughness. Finally, a phase transformation of the WN film to m-WO3 did not contribute to a friction reduction at 500 °C.

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Section: Microstructurementioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Impact of Tungsten Incorporation on the Tribomechanical Behavior of AlCrWxSiN Films at Room and Elevated Temperature

2021

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“…This effect might be used for some coating solutions requiring a low oxidation rate. The (CrAlSi)N and (AlCrSi)N coatings can also be doped with one additional element to address modifications of various properties, e.g., O [132], Y [133] B [134], W [135,136], Ni [137], and others. Additionally, more than one element was added, e.g., Y and O [138].…”

Section: Coatings With the Addition Of Simentioning

confidence: 99%

“…Si-Mo sputtered [142], Si-Ni sputtered [143,144], Si-Ti arc [145,146], Si-W arc [78,135], Si-W sputtered [136], Si-Ni sputtered [137], Si-C sputtered [133,147], Si-B sputtered [134], Si-Mg [148], Ti-C sputtered [114], MoCu sputtered [106], Si-Y-O sputtered [138], Ti-Si-Y arc [149], and Nb-Ti-Si sputtered [150].…”

Section: Coatings With the Addition Of Two Or More Elementsmentioning

confidence: 99%

Quo Vadis: AlCr-Based Coatings in Industrial Applications

et al. 2021

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AlCr-based hard nitride coatings with different chemical compositions and architectures have been successfully developed and applied over the last few decades. Coating properties are mainly influenced by deposition conditions and the Al/Cr content. The fcc structure is dominant for an Al-content up to Al0.7Cr0.3N and is preferred for most cutting applications. Different (AlCrX)N alloying concepts, including X = Si, W, B, V, have been investigated in order to enhance oxidation resistance and wear behaviour and to provide tribological properties. AlCr-based oxynitrides and even pure oxides (Al1−xCrx)2O3 with different crystalline structures have been explored. Multi- and nanolayered coatings within the AlCr materials system, as well as in combination with (TiSi)N, for example, have also been implemented industrially. The dominant deposition technology is the vacuum arc process. Recently, advanced high-power impulse magnetron sputtering (HiPIMS) processes have also been successfully applied on an industrial scale. This paper describes basic coating properties and briefly addresses the main aspects of the coating processes as well as selected industrial applications.

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Mechanical milling to foster the solid solution formation and densification in Cr-W-Si for hot-pressing of PVD target materials

Tillmann

Fehr

Heringhaus

2021

Advanced Powder Technology

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Powder metallurgic fabricated plug targets for the synthesis of AlCrSiWN multicomponent coating systems

Cited by 5 publications

References 37 publications

Impact of Tungsten Incorporation on the Tribomechanical Behavior of AlCrWxSiN Films at Room and Elevated Temperature

Impact of Tungsten Incorporation on the Tribomechanical Behavior of AlCrWxSiN Films at Room and Elevated Temperature

Quo Vadis: AlCr-Based Coatings in Industrial Applications

Mechanical milling to foster the solid solution formation and densification in Cr-W-Si for hot-pressing of PVD target materials

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