WFRF:(Karthikeyan S)
Sökning: WFRF:(Karthikeyan S) > On the formation an...
- 36 av 51
- Föregående post
- Nästa post
- Till träfflistan
| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 03687naa a2200397 4500 | |
| 001 | oai:DiVA.org:kth-228726 | |
| 003 | SwePub | |
| 008 | 180529s2018 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-2287262 URI |
| 024 | 7 | a https://doi.org/10.1016/j.intermet.2018.04.0172 DOI |
| 040 | a (SwePub)kth | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a Babu, Prasathu KTH,Materialvetenskap,Indian Institute of Science, Bangalore, India4 aut0 (Swepub:kth)u1i5f8il |
| 245 | 1 0 | a On the formation and stability of precipitate phases in a near lamellar γ-TiAl based alloy during creep |
| 264 | 1 | b Elsevier,c 2018 |
| 338 | a print2 rdacarrier | |
| 500 | a QC 20180529 | |
| 520 | a The formation, evolution and stability of metastable phases observed in the γ-TiAl based alloy Ti-47Al-2Cr-2Nb was studied under creep deformation with stress applied at two different hard orientations in a highly textured as-cast + HIPed material. Previously we have reported that the metastable phase Ti(Al,Cr)2 with C14 Laves phase structure forms at the γ-α2 interface which acts as sink for the alloying elements ejected from the dissolving α2 phase and also expected to effectively control the interface stresses through short range diffusion and modifications in the chemical composition [1]. Ab initio density functional theory based calculations were carried out to evaluate the effect of choice of lattice position and site occupancy of aluminium atoms in the Ti(Al,Cr)2 structure on the lattice parameter variation and thermodynamic stability. C14 with the composition 25 at. % Al was found to have lattice parameter values close to the inter-planar spacing of <110>γ and <10-10>α2 which would have a lower misfit with C14 across the interface. From the cohesive energy calculations, Laves phase C14 with a constrained lattice parameter due to the adjoining phases, exhibits higher stability than the B2 and L10 structures across a range of compositions studied. Electron diffraction simulations of C14 with a composition of 25% Al compared with the experimental data suggest that the structure C14 has taken up either a random site occupancy compared to a specific choice of ordering to minimize the interfacial stress. Though the experimental evidences do not strongly support a long-range ordering theory in C14, short-range ordering could be a tangible choice for alleviating interface misfits. The ability of C14 to assume different lattice parameters at and far from the α2-γ interface also suggest that the C14 acts as buffer layer between α2 and γ phases in the presence of local stresses, although this is not the thermodynamically expected phase at the temperature of creep experiment. | |
| 650 | 7 | a TEKNIK OCH TEKNOLOGIERx Materialteknikx Metallurgi och metalliska material0 (SwePub)205062 hsv//swe |
| 650 | 7 | a ENGINEERING AND TECHNOLOGYx Materials Engineeringx Metallurgy and Metallic Materials0 (SwePub)205062 hsv//eng |
| 653 | a B2 and C14 Laves phases | |
| 653 | a Creep deformation | |
| 653 | a Density functional theory | |
| 653 | a Gamma titanium aluminide | |
| 653 | a Interface stress | |
| 653 | a Phase transformation | |
| 653 | a Transmission electron microscopy | |
| 700 | 1 | a Vamsi, K. V.4 aut |
| 700 | 1 | a Karthikeyan, S.4 aut |
| 710 | 2 | a KTHb Materialvetenskap4 org |
| 773 | 0 | t Intermetallics (Barking)d : Elsevierg 98, s. 115-125q 98<115-125x 0966-9795x 1879-0216 |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-228726 |
| 856 | 4 8 | u https://doi.org/10.1016/j.intermet.2018.04.017 |
Hitta via bibliotek
- Intermetallics (Barking) (Sök värdpublikationen i LIBRIS)
Till lärosätets databas
- 36 av 51
- Föregående post
- Nästa post
- Till träfflistan
Hitta mer i SwePub
- Av författaren/redakt...
- Babu, Prasath
- Vamsi, K. V.
- Karthikeyan, S.
- Om ämnet
-
- TEKNIK OCH TEKNOLOGIER
- TEKNIK OCH TEKNO ...
- och Materialteknik
- och Metallurgi och m ...
- Artiklar i publikationen
- Intermetallics ( ...
- Av lärosätet
- Kungliga Tekniska Högskolan
Sök utanför SwePub
- Sök vidare i:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - Nationella bibliotekssystem
- LIBRIS.kb.se
