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WFRF:(Dehghani Mohammad)
 

Search: WFRF:(Dehghani Mohammad) > On the energetics o...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003547naa a2200445 4500
001oai:DiVA.org:kth-320672
003SwePub
008221102s2022 | |||||||||||000 ||eng|
024a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3206722 URI
024a https://doi.org/10.1016/j.actamat.2022.1182682 DOI
040 a (SwePub)kth
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
100a Abdoshahi, Nedau Univ Leoben, Dept Mat Sci, Franz Josef Str 18, A-8700 Leoben, Austria.4 aut
2451 0a On the energetics of the cubic-to-hexagonal transformations in TiAl plus Mo alloys
264 1b Elsevier BV,c 2022
338 a print2 rdacarrier
500 a QC 20221102
520 a Diffusionless transformations allow access to metastable phases and enrich the materials design portfolio. They are well suited for atomistic modeling; nonetheless, they are challenging when involving disordered systems or alloys with complex compositions. This work presents a comprehensive study of transforma-tion energetics between bcc and hcp ordered and disordered phases in the TiAl+Mo model alloy system. By employing two complementary techniques I. VASP-SQS, and II. EMTO-CPA, we can show that chemical disorder flattens the energy landscape but may introduce a small barrier. Unlike that, the energetics of ordered phases are barrier-less and hence would suggest a spontaneous transformation. Finally, we show that Mo stabilizes the bcc phases, leading to a barrier-less transformation hcp -+ bcc for both ordered and disordered states when Mo content exceeds ti 12 at.%.
650 7a TEKNIK OCH TEKNOLOGIERx Materialteknikx Metallurgi och metalliska material0 (SwePub)205062 hsv//swe
650 7a ENGINEERING AND TECHNOLOGYx Materials Engineeringx Metallurgy and Metallic Materials0 (SwePub)205062 hsv//eng
650 7a NATURVETENSKAPx Fysikx Den kondenserade materiens fysik0 (SwePub)103042 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Condensed Matter Physics0 (SwePub)103042 hsv//eng
653 a Density functional theory
653 a TiAl
653 a Martensitic transformations
653 a Diffusionless transformations
700a Dehghani, Mohammadu Mat Ctr Leoben Forsch GmbH, Roseggerstr 12, A-8700 Leoben, Austria.4 aut
700a Ruban, Andrei V.u KTH,Strukturer,Mat Ctr Leoben Forsch GmbH, Roseggerstr 12, A-8700 Leoben, Austria.4 aut0 (Swepub:kth)u1uo08he
700a Friak, Martinu Czech Acad Sci, Inst Phys Mat, Zizkova 22, CZ-61662 Brno, Czech Republic.;Brno Univ Technol, Fac Mech Engn, Inst Mat Sci & Engn, Tech 2896-2, CZ-61669 Brno, Czech Republic.4 aut
700a Sob, Mojmiru Czech Acad Sci, Inst Phys Mat, Zizkova 22, CZ-61662 Brno, Czech Republic.;Masaryk Univ, Fac Sci, Dept Chem, Kotlarska 2, CZ-61137 Brno, Czech Republic.4 aut
700a Spitaler, Juergenu Mat Ctr Leoben Forsch GmbH, Roseggerstr 12, A-8700 Leoben, Austria.4 aut
700a Holec, Davidu Univ Leoben, Dept Mat Sci, Franz Josef Str 18, A-8700 Leoben, Austria.4 aut
710a Univ Leoben, Dept Mat Sci, Franz Josef Str 18, A-8700 Leoben, Austria.b Mat Ctr Leoben Forsch GmbH, Roseggerstr 12, A-8700 Leoben, Austria.4 org
773t Acta Materialiad : Elsevier BVg 240q 240x 1359-6454x 1873-2453
856u https://doi.org/10.1016/j.actamat.2022.118268y Fulltext
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-320672
8564 8u https://doi.org/10.1016/j.actamat.2022.118268

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