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Chemical Interactio...
Chemical Interactions Between Cemented Carbide and Difficult-to-Machine Materials by Diffusion Couple Method and Simulations
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- von Fieandt, Linus (author)
- Uppsala universitet,Oorganisk kemi
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- M'Saoubi, R. (author)
- Seco Tools AB, R&D Mat & Technol Dev, S-73782 Fagersta, Sweden
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- Schwind, M. (author)
- Seco Tools AB, R&D Mat & Technol Dev, S-73782 Fagersta, Sweden
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- Kaplan, B. (author)
- Sandvik Coromant R&D, Lerkrogsvagen 19, S-12680 Stockholm, Sweden
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- Århammar, Cecilia (author)
- Uppsala universitet,Nanoteknologi och funktionella material
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Jansson, B. (author)
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(creator_code:org_t)
- 2018-06-11
- 2018
- English.
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In: Journal of phase equilibria and diffusion. - : SPRINGER. - 1863-7345 .- 1547-7037. ; 39:4, s. 369-376
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Abstract
Subject headings
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- A simple and efficient diffusion couple method is utilized to study the chemical interactions between cemented carbide cutting tools and difficult-to-machine materials (Ti, Ti-6Al-4V, Ni, Inconel 718, Fe, and AISI 316L). The experimental results and simulations probe different chemical interactions between the cemented carbide and work materials. In particular, the formation of a thick TiC layer is observed at the cemented carbide/Ti and Ti-6Al-4V interface while eta-phase is formed at the interface between the cemented carbide and work materials Inconel 718, Fe and AISI 316L. Pure titanium and Ti-6Al-4V both interact strongly with the tool causing formation of TiC and dissolution of WC-grains. Experiments and diffusion simulations confirm bcc-W formation and progressive diffusion of W into bcc-Ti. For both Ti and Fe work materials a dense band of carbides (WC + eta or WC + TiC) forms at the interface, effectively inhibiting further diffusion. Ni does not form any stable carbide and lowers the eta-phase limit in terms of carbon content, wherefore diffusion can occur freely. The diffusion couple method used in this work, corroborated by DICTRA simulations should serve as a useful tool in the detailed analysis of worn tools where chemical wear is dominant.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
Keyword
- cemented carbide
- DICTRA modeling
- diffusion couples
- machining
Publication and Content Type
- ref (subject category)
- art (subject category)
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