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Synthesis and phase...
Synthesis and phase separation of (Ti,Zr)C
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- Borgh, Ida (author)
- KTH,Metallografi
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- Hedström, Peter (author)
- KTH,Metallografi
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Blomqvist, Andreas (author)
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- Ågren, John (author)
- KTH,Metallografi
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- Odqvist, Joakim (author)
- KTH,Metallografi
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(creator_code:org_t)
- Elsevier BV, 2014
- 2014
- English.
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In: Acta Materialia. - : Elsevier BV. - 1359-6454 .- 1873-2453. ; 66, s. 209-218
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Synthesis and phase separation of (Ti,Zr)C were investigated in the present work. The (Ti,Zr)C phase was synthesized at 2200 C and subsequently aged at 1300 C for different times. The microstructure was investigated using X-ray diffraction and electron microscopy, and supplemented by first-principles calculations. The (Ti,Zr)C phase separates into a lamellar nanostructure with alternating Ti- and Zr-rich face-centered cubic domains as well as non-stoichiometric TiC and ZrC. The lamellar structure is a consequence of phase separation within the miscibility gap that is directionally constrained by high coherency stresses, as indicated by the first-principles calculations. Moreover, the increased hardness due to the phase separation suggests that the mixed carbide could be used as a strengthening constituent in, for example, cemented carbides.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Keyword
- Carbides
- Electron microscopy
- First-principles calculations
- Phase separation
- X-ray diffraction
Publication and Content Type
- ref (subject category)
- art (subject category)
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