FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W378009860> ?p ?o ?g. }

• W378009860 abstract "A Ti-Al alapu otvozetek magas hőmersekleten is nagy szilardagu es kis sűrűsegű szerkezeti anyagok. Az eddig hasznalatos technologiak helyett, mi ket uj technologiat alkalmaztunk: az olvadekbol valo gyorshűtest es a mechanikai otvozest. Sajnalatos modon Al-Ti alapu femuveget nem sikerult előallitani, mert hianyzik a mely eutektikum a fazisdiagramban. Ezert csak a mechanikai otvozes maradt es ezzel a modszerrel allitottunk elő egy sor amorf otvozetet: Al50Ti50, Al50Ti45Ni5, Al50Ti40Ni10, Al55Ti35Cr15 es Al45Ti40Cr15. Ezeket az amorf porokat kompaktaltuk es kulonboző vizsgalatoknak vetettuk ala. Kiserletek vannak folyamatban, hogy az amorf porokat magas hőmersekletű vedőbevonatkent alkalmazzuk. Kulon – kulon, mind Al, mind Ti alapon lehet femuveg szalagokat előallitani gyorshűtessel. Mi az Al alapu femuvegekre koncentraltunk. Az irodalombol ismert volt az altalaban terner osszetetelű (Al85-92RE2-12Ni0-12) femuveg, ahol a ritkafoldfem az amorfizalo otvoző elem. Kiserletileg bizonyitottuk, hogy vannak mas amorfizalo elemek is melyek a RE elemektől balra (Ca es Sr), jobbra (Nb es Ta) valamint alatta (Uran) helyezkednek el. Egy fontos, elektronszamhoz kotődő szabalyt allapitottunk meg, miszerint a maximalis szilardsagot e/a = 6,5 erteknel erjuk el az egyfazisu amorf otvozetek eseteben. Azt talaltuk, hogy Al-Ti alapon csak akkor kapunk nagyentropias otvozetet, ha a 3d elemekből kozel 50 at. % -ot adunk hozza. 3 diplomamunka es egy PhD dolgozat keszult el. | The Ti-Al alloys offer higher temperature capability along with low density and high stiffness. Instead of the usual technology, we have proposed two different routes based on melt spinning and mechanical alloying. Amorphous phase can not be obtained by rapid quenching from the melt due to the lack of deep eutectic, which prevent the sufficient under-cooling by melt spinning technique. This is why mechanical alloying has been used to prepare a series of Al-Ti based amorphous compositions: Al50Ti50, Al50Ti45Ni5, Al50Ti40Ni10, Al55Ti35Cr15, Al45Ti40Cr15. This amorphous powder have been compacted and investigated. Experiments are continuing to use this powder as wear and high temperature resistant coating material. Separately, both Ti and Al based amorphous ribbons can be obtained by melt spinning supposing that appropriate amorphous forming element are added. We have focused on Al based amorphous alloys extending the compositional area known in the literature and based on RE amorphizing elements (Al85-92RE2-12Ni0-12). We have proved that elements situated in the periodic table at the left (Ca and Sr), at the right (Nb and Ta) and below (U) to the RE elements are also amorphizing elements. An important electronic rule was established: for the one-phase amorphous alloys the maximal strength is achieved around e/a = 6.5. Al-Ti based high entropy alloys could be prepared with addition of more then 50 at% 3d elements. 3 diploma work and 1 PhD dissertations have been prepared." @default.
• W378009860 created "2016-06-24" @default.
• W378009860 creator A5005744781 @default.
• W378009860 creator A5020426494 @default.
• W378009860 creator A5064034434 @default.
• W378009860 creator A5064706716 @default.
• W378009860 creator A5073916052 @default.
• W378009860 date "2012-01-01" @default.
• W378009860 modified "2023-09-27" @default.
• W378009860 title "Al és Ti alapú tömbi amorf és nanoszerkezetű kompozitok előállítása és vizsgálata = Preparation and investigation of Al and Ti based amorphous and nanocrystalline bulk comopsites" @default.
• W378009860 hasPublicationYear "2012" @default.
• W378009860 type Work @default.
• W378009860 sameAs 378009860 @default.
• W378009860 citedByCount "0" @default.
• W378009860 crossrefType "journal-article" @default.
• W378009860 hasAuthorship W378009860A5005744781 @default.
• W378009860 hasAuthorship W378009860A5020426494 @default.
• W378009860 hasAuthorship W378009860A5064034434 @default.
• W378009860 hasAuthorship W378009860A5064706716 @default.
• W378009860 hasAuthorship W378009860A5073916052 @default.
• W378009860 hasConcept C121332964 @default.
• W378009860 hasConcept C138885662 @default.
• W378009860 hasConcept C13965031 @default.
• W378009860 hasConcept C140676511 @default.
• W378009860 hasConcept C15708023 @default.
• W378009860 hasConcept C171250308 @default.
• W378009860 hasConcept C185592680 @default.
• W378009860 hasConcept C191897082 @default.
• W378009860 hasConcept C192562407 @default.
• W378009860 hasConcept C199289684 @default.
• W378009860 hasConceptScore W378009860C121332964 @default.
• W378009860 hasConceptScore W378009860C138885662 @default.
• W378009860 hasConceptScore W378009860C13965031 @default.
• W378009860 hasConceptScore W378009860C140676511 @default.
• W378009860 hasConceptScore W378009860C15708023 @default.
• W378009860 hasConceptScore W378009860C171250308 @default.
• W378009860 hasConceptScore W378009860C185592680 @default.
• W378009860 hasConceptScore W378009860C191897082 @default.
• W378009860 hasConceptScore W378009860C192562407 @default.
• W378009860 hasConceptScore W378009860C199289684 @default.
• W378009860 hasLocation W3780098601 @default.
• W378009860 hasOpenAccess W378009860 @default.
• W378009860 hasPrimaryLocation W3780098601 @default.
• W378009860 hasRelatedWork W2319701479 @default.
• W378009860 hasRelatedWork W2517454123 @default.
• W378009860 hasRelatedWork W2532172537 @default.
• W378009860 hasRelatedWork W2792061755 @default.
• W378009860 hasRelatedWork W2898562939 @default.
• W378009860 hasRelatedWork W3000496693 @default.
• W378009860 hasRelatedWork W3141509830 @default.
• W378009860 hasRelatedWork W3144345304 @default.
• W378009860 hasRelatedWork W3162058107 @default.
• W378009860 hasRelatedWork W3200885224 @default.
• W378009860 hasRelatedWork W647207476 @default.
• W378009860 hasRelatedWork W80024161 @default.
• W378009860 hasRelatedWork W936253321 @default.
• W378009860 hasRelatedWork W2758137584 @default.
• W378009860 hasRelatedWork W2811294591 @default.
• W378009860 hasRelatedWork W2978543504 @default.
• W378009860 isParatext "false" @default.
• W378009860 isRetracted "false" @default.
• W378009860 magId "378009860" @default.
• W378009860 workType "article" @default.