Cutting performance and wear characteristics of Al2O3/TiC ceramic cutting tools with WS2/Zr soft-coatings and nano-textures in dry cutting

Xing, Youqiang; Deng, Jianxin; Li, Shipeng; Yue, Hongzhi; Meng, Rong; Gao, Peng

doi:10.1016/j.wear.2014.06.001

Cited by 83 publications

(44 citation statements)

References 46 publications

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“…Tetraalkylammonium thiotungstates are precursors for WS 2 catalysts [7,[15][16][17]. WS 2 can be also used as gas sensor [6,[19][20], dry lubricant [21,22] and in lithium batteries [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Thermal decomposition of ammonium tetrathiotungstate

Hunyadi

Ramos

Szilágyi

2015

J Therm Anal Calorim

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The thermal decomposition of ammonium tetrathiotungstate (ATT), (NH 4 ) 2 WS 4 was studied by SEM, FTIR, XRD, EDX and TG/DTA-MS. The decomposition of ATT involved three steps in inert atmosphere: (i) release of free water between 30-140 °C; (ii) formation of an amorphous WS 3 phase between 170-280 °C, from which (iii) a slightly crystalline WS 2 formed between 330-470 °C. As a difference compared to inert atmosphere, in air in the second step the ATT decomposed into directly WS 2 instead of WS 3 . This WS 2 phase was amorphous, and still contained traces of ATT. Between 260-2 500 °C from the WS 2 monoclinic tungsten oxide crystallized in two steps: at 302 °C a slightly crystalline m-WO 3 formed, which became more crystalline at 471 °C. During the investigation of the effect of the particle size, it was found that the thermal behaviour of ATT crystals was similar to ATT powder, with some shift in the decomposition temperature. The XRD results showed that the WS 2 formed from the ATT powder in N 2 had a higher level of crystallization, compared to the WS 2 obtained from ATT crystals.

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Section: Introductionmentioning

confidence: 99%

Thermal decomposition of ammonium tetrathiotungstate

Hunyadi

Ramos

Szilágyi

2015

J Therm Anal Calorim

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“…This improvement is mainly attributed to several physical mechanisms such as wear debris entrapment, local increase of lubricant supply by fluid reservoirs creation and also increase of load carrying capacity by a hydrodynamic effect [15][16][17][18]. Now increasing studies have explored the benefits of surface texturing when applied to the cutting tools [19][20][21][22]. Deng et al [19] fabricated micro-scale textures with different geometrical characteristics on the tool rake face, and MoS 2 solid lubricants were filled into the textures.…”

Section: Introductionmentioning

confidence: 99%

Effect of micro/nano-scale textures on anti-adhesive wear properties of WC/Co-based TiAlN coated tools in AISI 316 austenitic stainless steel cutting

Zhang

Deng

Sun

et al. 2015

Applied Surface Science

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“…Thus, hard-coatings may be not the most suitable for the ceramic substrate due to the high hardness of ceramic itself; soft-coatings may be expected to be more suitable for ceramic and the applications were reported by only few literatures, such as MoS 2 [20] and WS 2 [21]. Softcoatings are as solid lubricants which ensure low friction and wear in tribological applications and have been investigated for many decades.…”

Section: Introductionmentioning

confidence: 99%

“…In fact, WS 2 exhibits higher thermally stability withstanding temperature of about 100 1C higher compared with MoS 2 [35], which may provide a wider range of application as lubricants in films and it still needs to be further studied. Though a few literatures about dichalcogenide and dichalcogenide with metal additives used in cutting tools in the forms of solid lubricant powders [36][37][38] or coatings [20,21,31,39,40] were reported, no literatures about the Si 3 N 4 based ceramic tools with pure WS 2 or WS 2 with metal additive coatings were reported.…”

Section: Introductionmentioning

confidence: 99%