Effect of solute elements (Cr, Mo, Fe, Co) on the adhesion properties of WC/Ni-based binder interface: A first-principles study

Lu, Kelong; Shen, Chengjin; He, Yezeng; Huang, Sheng; Ba, Yaer

doi:10.1016/j.ijrmhm.2021.105563

Cited by 24 publications

(2 citation statements)

References 29 publications

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“…Our previous studies reported that Fe 3 C phase exhibited a catalytic effect on the formation of DLC films . Many studies have shown that the doping modification of the phase boundary has a significant impact on the interfacial stability and properties by changing the interfacial chemical bonding characteristics, resulting in corresponding changes in the mechanical strength, toughness, plasticity, and corrosion tendency of the material. , Therefore, investigation into the interface behavior of Fe 3 C/diamond is of great significance for further design and optimization of the phase interface to achieve high-performance DLC films. We perform systematic first-principles calculations to investigate the atomic structure, interfacial bonding, and adhesion of the Fe 3 C/diamond interface.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Diamond-like Carbon Film on Aermet100 Steel and First-Principles Calculation of Interfacial Adhesion

Chen

Yan

et al. 2022

ACS Appl. Mater. Interfaces

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Three different types of surface-modified layers of N, C, and N+C are successfully prepared on AerMet100 steel by plasma-assisted thermochemical treatment, and diamond-like carbon (DLC) films are formed on the top surfaces of the latter two. The results show that the DLC films produced by prenitriding and then carburizing (N+C) exhibit a smoother and finer morphology and higher sp 3 content than that without prenitriding (C). In addition, the wear resistance of the N+C specimen with a high hardness nitrided layer as the support for the outermost DLC films is superior to that of the C specimen. In view of the catalytic effect of the Fe 3 C phase on the growth of DLC films, the interfacial properties of Fe 3 C(001)/diamond(111) are investigated using first-principles calculations. On the basis of the most preferred Fe-terminated HCP site model, the effects of alloyed cementite (Fe 2 MC) on interfacial adhesion of Fe 2 MC(001)/diamond(111) are also investigated. Furthermore, the mechanisms of interfacial adhesion for two representative dopings (Zr weakened and V enhanced) are revealed in detail. These results are expected to provide a potential promising means for future experimental works on the preparation of high-performance DLC films on alloy steel surfaces by plasma carburizing.

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Section: Introductionmentioning

confidence: 99%

Experimental Study of Diamond-like Carbon Film on Aermet100 Steel and First-Principles Calculation of Interfacial Adhesion

Chen

Yan

et al. 2022

ACS Appl. Mater. Interfaces

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“…For the further development of this class of materials, the usual parameters for describing its microstructure, which are used in quantitative metallography, such as the average grain size or the volume fraction of phases, are insufficient [17 -19]. For example, they are not able to take into account the peculiarities of grain and interphase boundaries [20,21]. It is necessary to develop more subtle methods to characterize the features of the topology of the mutual penetration of the WC and Co phases [22 -24].…”

Section: Introductionmentioning

confidence: 99%

Computer analysis of the cemented carbides’ microstructure

et al. 2021

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Cemented carbides have been known for about a hundred years and are now widely used in mining, civil and road construction, and mechanical engineering. Their improvement requires the development of novel technologies based on fundamentally new approaches. Here the method for microstructure analysis using computer processing with elements of machine learning and artificial intelligence is proposed. It has been applied to the analysis of micrographs obtained by the scanning electron microscopy of the WC-Co cemented carbides. The geometric parameters of the WC / Co interphase boundaries are extracted using mathematical methods for processing digital pictures. This method is applied to the micrographs of three samples with different WC mean grain sizes. It has been found that the distribution of the contact angles of WC / Co interphase boundaries has a pronounced bimodal structure, and the values of the peak angles are practically the same for the samples of the fine-, medium-, and coarse-grain cemented carbide grades. The distributions of the semiaxes for the isolated areas of the cobalt binder are also obtained. The probability of finding a particular value of long and short semiaxis decreases exponentially with increasing semiaxis length. Contrary to the contact angles, the exponents are different for samples with different WC grains sizes. The obtained results are discussed using the ideas of wetting of grain boundaries and faceting-roughening of interphase boundaries.

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Effect of NbC in-situ synthesis on the microstructure and properties of pre-placed WCoB-TiC coating by laser cladding

Zhang

Pan

Zhang

et al. 2022

Int J Adv Manuf Technol

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Effect of solute elements (Cr, Mo, Fe, Co) on the adhesion properties of WC/Ni-based binder interface: A first-principles study

Cited by 24 publications

References 29 publications

Experimental Study of Diamond-like Carbon Film on Aermet100 Steel and First-Principles Calculation of Interfacial Adhesion

Experimental Study of Diamond-like Carbon Film on Aermet100 Steel and First-Principles Calculation of Interfacial Adhesion

Computer analysis of the cemented carbides’ microstructure

Effect of NbC in-situ synthesis on the microstructure and properties of pre-placed WCoB-TiC coating by laser cladding

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