Comparative analysis of wear on PVD TiN and (Ti1− Al )N coatings in machining process

Ávila, R.F.; Mancosu, Rafael Drumond; Machado, Álisson Rocha; Vecchio, Sara; Silva, R.B. da; Vieira, J.M.

doi:10.1016/j.wear.2013.01.112

Cited by 28 publications

(14 citation statements)

References 17 publications

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“…One can see that neither significant chipping no exfoliation from the carbide substrate is observed when coatings of the study compositions are subjected to 13 scratching. An abrupt change in the growth rate of the friction coefficient and friction force on the graph (Fig.…”

Section: Physicomechanical Properties Of the Coatingsmentioning

confidence: 83%

“…Presented data ( in TiN crystal lattice due to Al addition [13,14], formation of a nanostructure with long grain boundaries and layered architecture limiting development of cracks [15,16,26].…”

Section: Physicomechanical Properties Of the Coatingsmentioning

confidence: 99%

“…Simultaneously, an increase in microhardness values from [22][23][24] GPa to approximately 34 GPa is observed in the Ti-Mo-N coatings [8,9]. Introduction of additional Al should result in increased coating hardness due to formation of microstrains in the TiN crystal lattice with substitution of Ti atoms even at small Al contents (from 0.8 at.%) [13,14].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Wear behaviour of wear-resistant adaptive nano-multilayered Ti-Al-Mo-N coatings

Сергевнин

Блинков

Volkhonskii

et al. 2016

Applied Surface Science

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Section: Physicomechanical Properties Of the Coatingsmentioning

confidence: 83%

Section: Physicomechanical Properties Of the Coatingsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Wear behaviour of wear-resistant adaptive nano-multilayered Ti-Al-Mo-N coatings

Сергевнин

Блинков

Volkhonskii

et al. 2016

Applied Surface Science

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“…Nitride-based hard compounds were more frequently chosen as protect coating materials to improve the tool life [7,[10][11][12]. Owing to excellent oxidation resistance as well as good chemical stability, mechanical and tribological properties, the researches are particularly attracted by TiAlN and CrAlN materials [11,[13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study of TiAlN and CrAlN Coatings Deposited on Sialon Ceramic Cutting Inserts by Physical Vapor Deposition

Liu¹,

Ma²,

Du³

2017

dtetr

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Abstract. TiAlN and CrAlN coatings were prepared by physical vapor deposition (PVD) on Sialon ceramic cutting tools. The results illustrated that the surface morphology of TiAlN coating was smoother than that of CrAlN coating. The thickness of TiAlN coating was about 1 µm, which was thicker than that of CrAlN coating (about 0.5µm). However, the hardness of TiAlN coating was lower (30.1 GPa) than that of CrAlN coating (37.5 GPa). Also the elastic modulus of TiAlN coating (346.9 GPa) was also lower than that of CrAlN coating (430.7 GPa), indicating that the stiffness of CrAlN coating was better than that of TiAlN coating. According to scratch tests, the adhesion force of TiAlN and CrAlN coatings were 31 N and 45 N, respectively, which revealed that the CrAlN coating exhibited better adhesion than the TiAlN coating. Cutting performance of the TiAlN coated and CrAlN coated Sialon ceramic cutting inserts were investigated by turning nickel-based alloys under dry conditions. For comparison, uncoated Sialon ceramic cutting inserts were also used for turning tests under the same conditions. The results indicated that the cutting performance of the inserts was considerably improved by the TiAlN and CrAlN coatings on the surfaces. The dominant failure mechanisms of the CrAlN coated inserts were abrasive and adhesive wear, whereas adhesive wear and spalling were the main failure mechanisms of the TiAlN coated inserts. The service life of TiAlN and CrAlN coated inserts were much longer than that of the uncoated inserts, indicating that the two coatings could effectively protect the inserts from wear.

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“…Many types of coating materials, such as TiN, TiAlN, AlCrN and DLC, have been widely studied to improve the wear and corrosion resistance of various materials, and good properties are obtained by controlling the chemical composition and film thickness [3][4][5][6]. CrN is a well-known hard thin film with good wear resistance [7][8][9], corrosion resistance [10], and oxidation properties [11,12].…”

Section: Introductionmentioning

confidence: 99%