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Experimental and theoretical study of the Al-rich corner in the ternary Al-Ti-B system and reassessment of the Al-rich side of the binary Al-B phase diagram
Division of Casting of Metals, KTH, Stockholm, Sweden.
Division of Casting of Metals, KTH, Stockholm, Sweden.ORCID iD: 0000-0002-0101-0062
2001 (English)In: Zeitschrift für Metallkunde, ISSN 0044-3093, Vol. 92, no 6, 563-571 p.Article in journal (Refereed) Published
Abstract [en]

The phase relations on the B-rich side of stoichiometric TiB2 were experimentally studied. It was found that a peritectic four-phase reaction liquid + AlB12 ⇔ AlB2 + TiB2 occurs at a temperature between 1073 and 1173 K. Part of the Al-rich corner of the Al-Ti-B phase diagram was calculated and isothermal sections at 973, 1073, 1173 and 1273 K are presented. The peritectic four-phase reaction was calculated to occur at 1150 K in agreement with the experimental results. The Al-rich part of the binary Al-B system was reassessed. A eutectic reaction liquid ⇔ AlB2 + (Al) was confirmed to occur at 932.9 K and 0.055 at.% B and a peritectic reaction liquid +AlB12 ⇔ AlB2 concluded to happen at 1150 K (slightly above the four-phase reaction) and 0.60 at.% B, which is at a lower temperature than previously reported.

Place, publisher, year, edition, pages
2001. Vol. 92, no 6, 563-571 p.
Keyword [en]
Al-B system, Al-Ti-B system, Aluminum, Composition effects, Computer simulation, Differential scanning calorimetry, Phase diagrams, Temperature, Thermodynamics, Eutectic reaction liquid, Isothermal section, Peritectic four phase reaction liquid, Ternary systems
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:hj:diva-16654OAI: oai:DiVA.org:hj-16654DiVA: diva2:454569
Available from: 2011-11-07 Created: 2011-11-07 Last updated: 2015-06-01Bibliographically approved

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Jarfors, A. E. W.
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