Diamond Films on Stainless Steel Substrates with an Interlayer Applied by Laser Cladding

Contin, Andre; Alves, Kenya Aparecida; Campos, Raonei Alves; Vasconcelos, Getúlio de; Damm, Djoille Denner; Trava-Airoldi, V.J.; Corat, Evaldo José

doi:10.1590/1980-5373-mr-2016-0346

Cited by 9 publications

(8 citation statements)

References 27 publications

(19 reference statements)

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“…The laser cladding produces surface modification by transformation hardening and remelting. It creates a dense coating, with laser irradiation on a powder spread on the substrate surface to promote a strong metallurgical bond [89]. The advantages of laser cladding over conventional techniques to create a diffusion barrier include a faster processing speed, high heating/cooling rate, precision, automation, and versatility.…”

Section: Laser Claddingmentioning

confidence: 99%

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Interlayers Applied to CVD Diamond Deposition on Steel Substrate: A Review

et al. 2017

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Academics and industry have sought after combining the exceptional properties of diamonds with the toughness of steel. Since the early 1990s several partial solutions have been found but chemical vapor deposition (CVD) diamond deposition on steel substrate continues to be a persistent problem. The main drawbacks are the high carbon diffusion from gas phase into substrate, the transition metals on the material surface that catalyze sp 2 bond formation, instead of sp 3 bonds, and the high thermal expansion coefficient (TEC) mismatch between diamond and steels. An intermediate layer has been found necessary to increase diamond adhesion. Literature has proposed many efficient intermediate layers as a diffusion barrier for both, carbon and iron, but most intermediate layers shown have not solved TEC mismatch. In this review, we briefly discuss the solutions that exclusively work as diffusion barrier and discuss in a broader way the ones that also solve, or may potentially solve, the TEC mismatch problem. We examine some multilayers, the iron borides, the chromium carbides, and vanadium carbides. We go through the most relevant results of the last two and a half decades, including recent advances in our group. Vanadium carbide looks promising since it has shown excellent diffusion barrier properties, its TEC is intermediary between diamond and steel and, it has been thickened to manage thermal stress relief. We also review a new deposition technique to set up intermediate layers: laser cladding. It is promising because of its versatility in mixing different materials and fusing and/or sintering them on a steel surface. We conclude by remarking on new perspectives.

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Section: Laser Claddingmentioning

confidence: 99%

“…These authors, taking advantage of laser cladding versatility to change and mix powder materials, continued the research to include titanium and copper powder mixed with SiC [89]. Titanium inclusion formed a new phase with iron and silicon, that is even better than FeSi as a diffusion barrier.…”

Section: Laser Cladding Of Sic Layersmentioning

confidence: 99%

Interlayers Applied to CVD Diamond Deposition on Steel Substrate: A Review

et al. 2017

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“…In the previous work, metal matrix composite coatings have been produced by several methods, such as laser cladding, plasma cladding, atmospheric plasma spraying technique [9][10][11][12][13] . Zhang et al 9 synthesized TiC-TiB 2 /Cr coating on a T61206(UNS) steel by using laser surface engineering, and the results showed that the wear resistance and high temperature oxidation resistance of the coatings were greatly improved compared with the 5CrNiMo steel.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Wear Resistance of ZrC-ZrB2 /Ni Composite Coatings Prepared by Plasma Transferred Arc Cladding

et al. 2019

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The ZrC-ZrB 2 /Ni metal matrix composite coatings were in-situ synthesized from a mixture of Ni, Zr and B 4 C by plasma transferred arc (PTA) cladding process. Microstructures and phase constituents of the coatings were characterized by electron probe micro-analyzer (EPMA) and X-ray diffraction (XRD). Microhardness and wear resistance of the coatings were systematically investigated by means of vickers hardness tester and wear tester. The results showed that the main phases of the composite coatings were ZrB 2 and ZrC. The coatings had a sound metallurgical bonding to the SA-283C steel substrate. Microhardness and wear resistance of the substrate were greatly improved by the composite coatings, and both of them showed a tendency to increase first and then decrease with the increase of the Ni content. As the content of Ni was 30 wt.%, the hardness of the coating reached the maximum value, 1522 HV, and the wear resistance was about 15 times that of the substrate.

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“…For a more detailed description of the method, we suggest to the readers our previous work, where the reactor has been completely characterized by computational models that were resolved numerically; 16) this is the same reactor that was utilized in the present work. The HFCVD method has been scaled to coat large area surfaces 17) with good homogeneity, 18) in addition, processes for Diamond Like Carbon (DLC) coating of three-dimensional base shapes are obtainable. 19) The hypothesis is that if this technique is suitable for depositing diamond films, there is also a window of conditions in which crystalline boron films can be produced.…”

Section: Introductionmentioning

confidence: 99%

Hot Filament Chemical Vapor Deposition of Crystalline Boron Films

Soto¹

2019

J. Korean Ceram. Soc

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This article reports on the conditions required for the growth of crystalline boron films on silicon substrates by hot filament chemical vapor deposition method. The reactive gas was 3% diborane diluted in hydrogen. The films were characterized by optical, electronic, and atomic force microscopies; x-ray diffraction; and energy dispersive, electron energy loss, Raman, x-ray photoelectron, and Auger spectroscopies. The parameters that affect the morphologies of the films have been investigated. It was concluded that faceted crystals are produced at low B 2 H 6 flows and working pressures below 200 mT. -boron is produced between 530 and 600°C. Deposition outside this range produces thin films with a wide variety of morphologies. This result indicates that the films crystallize through a process called "abnormal or discontinuous grain growth." It is assumed that this is due to the anisotropic surfaces of boron allotropes.

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Diamond Films on Stainless Steel Substrates with an Interlayer Applied by Laser Cladding

Cited by 9 publications

References 27 publications

Interlayers Applied to CVD Diamond Deposition on Steel Substrate: A Review

Interlayers Applied to CVD Diamond Deposition on Steel Substrate: A Review

Microstructure and Wear Resistance of ZrC-ZrB2 /Ni Composite Coatings Prepared by Plasma Transferred Arc Cladding

Hot Filament Chemical Vapor Deposition of Crystalline Boron Films

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