Wear mechanisms of WC-Co cemented carbide tools and PVD coated tools used for shearing Cu-alloy wire in zipper production

Heinrichs, Jannica; Mikado, Hiroko; Kawakami, Akira; Wiklund, Urban; Kawamura, Shingo; Jacobson, Staffan

doi:10.1016/j.wear.2018.12.075

Cited by 12 publications

(5 citation statements)

References 10 publications

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“…This offers the possibility of relating local top surface features to the corresponding subsurface characteristics. 18,[21][22][23][24][25][26][27][28] However, FIB polishing can only produce small cross-sections, typically in the range of tens of μm. By combining these crosssection techniques, large area views and statistics can be complemented with localized high precision cross sectioning of specific details.…”

Section: Techniques For Surface Analysis Of Worn Polymer Surfacesmentioning

confidence: 99%

“…By using a FIB (focused ion beam instrument), the position of the cross section can be selected in the SEM with sub‐micrometer precision. This offers the possibility of relating local top surface features to the corresponding subsurface characteristics 18,21–28 . However, FIB polishing can only produce small cross‐sections, typically in the range of tens of μm.…”

Section: Introductionmentioning

confidence: 99%

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Strategies for revealing deformation and wear mechanisms of polymer composites by combining scanning electron microscopy, energy dispersive x‐ray spectroscopy and cross‐section techniques—Exemplified by glass fiber reinforced poly‐phenylene‐sulphide

Holmgren,

Heinrichs Lindgren,

Kassman Rudolphi

et al. 2023

J of Applied Polymer Sci

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Polymers and polymer composites are frequently used in tribological applications. However, their use is often limited by excessive wear or plastic deformation, therefore research and development aiming to improve the materials is ongoing. Tribological evaluations of polymer composites often study the friction coefficient and wear rate for different types, sizes and amounts of fillers. But rarely are any mechanisms presented. Although polymer materials differ from metals, the techniques typically used for metal components, for example, scanning electron microscopy (SEM) and energy dispersive x‐ray spectroscopy (EDS), can be adapted to polymer materials, to achieve more informative SEM micrographs and EDS analyses. The aim of this article is to present useful analysis strategies, from sample preparation and selection of viewing angles, to selection of instrument settings and detector types. The strategies are exemplified by analysis of poly‐phenylene‐sulphide filled with glass fiber, evaluated against steel in a reciprocating ball‐on‐flat test set‐up. This article takes its starting point with the worn surfaces, and subsequently analyze them using SEM and EDS. A selection of cross section preparation techniques, analysis parameters and microscopy settings are presented and discussed. By combining these techniques and settings, the observation of a strongly modified surface layer, as well as sub‐surface plastic deformation and imbedded wear particles, is facilitated.

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Section: Techniques For Surface Analysis Of Worn Polymer Surfacesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Strategies for revealing deformation and wear mechanisms of polymer composites by combining scanning electron microscopy, energy dispersive x‐ray spectroscopy and cross‐section techniques—Exemplified by glass fiber reinforced poly‐phenylene‐sulphide

Holmgren,

Heinrichs Lindgren,

Kassman Rudolphi

et al. 2023

J of Applied Polymer Sci

Self Cite

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“…The analysis of the main mechanisms of wear of hard alloys is given, in particular, in [1][2][3]. In [4][5][6] the influence of the processed material TECHNOLOGY AUDIT AND PRODUCTION RESERVES -№ 4/2(60), 2021 ISSN 2664-9969 on the features of wear mechanisms is considered. This approach is legitimate when it comes to choosing material from existing ones.…”

Section: Introductionmentioning

confidence: 99%

Development of quality control and structure parameters determination methods for large size products from sintered hard alloys WC-(Co+Ni+Cr) based on analysis of the ultrasonic oscillations spreading parameters

Pashynskyi¹,

Boyko²

2021

TAPR

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The object of research is hard alloys with a morphology of the carbide phase skeleton structure, in which particles contact with each other, and the gaps between them are filled with a binder phase. The mechanical and service characteristics of such materials depend on the degree of development of the skeleton structure. One of the most problematic areas is the lack of non-destructive methods for determining the parameters of the structure. The introduction of such techniques will allow obtaining objective information on the structure of the material and using it to evaluate the quality of products. In the course of the study, the parameters of the scattering of elastic vibrations in inhomogeneous media were determined. The main hypothesis of the study is the assumption that the processes of energy dissipation occur both in the structural elements themselves (carbide grains and bond areas) and at their boundaries. Therefore, the evaluation of dissipation processes will allow obtaining a quantitative estimation of the alloys structure parameters, and will allow assessing the quality of the material. The following characteristics were chosen as the parameters characterizing the propagation of ultrasonic oscillations: the speed of the oscillations propagation, the scattering background level in relation to the amplitude of the bottom reflection, the oscillations attenuation coefficient. The parameters were determined and compared with the characteristics of the quality of the products and the parameters of the microstructure, which were determined by the methods of quantitative metallography and the statistical characteristics of the relationship between the parameters, were determined. As a result, new quality control procedures for carbide products have been developed. The contiguity characteristics of the carbide skeleton of the sintered cemented carbide were determined by measuring the propagation speed of ultrasonic oscillations. The assessment of the level of porosity with a pore size of less than 1 mm was carried out according to the results of measuring the relative amplitude of the background scattering of ultrasonic oscillations. The proposed methods are non-destructive and are carried out in one cycle with ultrasonic flaw detection, to which 100% of the products are subjected. These techniques have been introduced in the production of carbide rolls by the method of controlled hot vacuum pressing. They have become an integral part of the quality control system for carbide rolls.

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“…Physical vapour deposition (PVD) coatings are often used as protective coatings [4][5][6][7][8][9][10][11][12] for improving the service life of cutters because of their high strength, high toughness, high hardness, high wear resistance, corrosion resistance, and other characteristics. In recent decades, researchers have studied and evaluated the tribological properties of PVD coatings, such as sliding wear [13][14][15][16], rotational wear [17][18][19][20][21][22][23] (pin-on-disc), and fretting wear [24] using simulation and experimental methods.…”

Section: Introductionmentioning

confidence: 99%

“…These studies simulated and evaluated the wear behaviour and dynamic loads of PVD coatings in industrial applications. However, previous studies [6,18,[29][30][31][32][33] have focused on the tribological performance evaluation of PVD coatings for a single motion or load conditions and the described methods are not suitable for determining the tribological properties of PVD coatings under complex motion or loading conditions.…”

Section: Introductionmentioning

confidence: 99%

Impact-sliding wear properties of PVD CrN and WC/C coatings

Tan

Yang

et al. 2019

Surface Engineering

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This study focuses on the impact-sliding wear behaviour of CrN and WC/C tool protection coatings against Si3N4 ceramic material using a self-developed impact-sliding device. The wear mechanisms and tribochemical behaviour of the CrN coating and WC/C coating were compared and analysed using an optical microscope, 3D optical microscope, scanning electron microscope, energy-dispersive X-ray spectroscopy, electron probe microanalyzer, and X-ray photoelectron spectroscopy. The results showed that the WC/C coating exhibited very slight and uniform wear damage under impact-sliding conditions and the wear performance was much better than that of the CrN coating. Especially in the impact zone, the CrN coating showed peeling damage that greatly reduced the wear resistance to impactsliding. The impact-sliding damage mechanisms of the CrN coating consisted of micropeeling and plastic deformation, whereas those of the WC/C coating included deformation coordination and slight plastic deformation. The wear mechanisms of the CrN and WC/C coatings for the impact-sliding condition were fatigue wear, abrasive wear, and oxidation wear.

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Wear mechanisms of WC-Co cemented carbide tools and PVD coated tools used for shearing Cu-alloy wire in zipper production

Cited by 12 publications

References 10 publications

Strategies for revealing deformation and wear mechanisms of polymer composites by combining scanning electron microscopy, energy dispersive x‐ray spectroscopy and cross‐section techniques—Exemplified by glass fiber reinforced poly‐phenylene‐sulphide

Strategies for revealing deformation and wear mechanisms of polymer composites by combining scanning electron microscopy, energy dispersive x‐ray spectroscopy and cross‐section techniques—Exemplified by glass fiber reinforced poly‐phenylene‐sulphide

Development of quality control and structure parameters determination methods for large size products from sintered hard alloys WC-(Co+Ni+Cr) based on analysis of the ultrasonic oscillations spreading parameters

Impact-sliding wear properties of PVD CrN and WC/C coatings

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