FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W227538991> ?p ?o ?g. }

• W227538991 abstract "Superalloys and in particular the precipitation hardened Ni-based superalloys havealways been used extensively in the hot sections of jet engines. Large hot structuralengine components with complex geometry have preferably been cast as single piececomponents since the large scale vacuum investment casting process becameavailable about fifty years ago. However, a recent trend is to cast smaller pieces whichcan be joined with sheet or forged parts to fabricate structural components. Therationale for this fabrication strategy is the possibility to save weight by the use of higherstrength wrought material, where geometry allows, and join these wrought parts withcast material where complex geometry is needed and where the demand for strength ismoderate. One of the major challenges using this strategy is the obvious fact thatnumerous welds must be made which requires the fundamental understanding, notleast metallurgical, of how different materials may be joined by specific weldingprocesses.The main objective of this research has, for this reason, been to examine and interpretthe weldability of precipitation hardened superalloys from a metallurgical standpoint.Two newly developed superalloys Allvac® 718PlusTM and Haynes® 282® are comparedwith the two well established Alloy 718 and Waspaloy. The understanding of theinfluence of secondary phases such as carbides and δ phase in the microstructure wasaddressed by systematic hot ductility testing (Gleeble) and by weldability testing(Varestraint). The effect of secondary phases were also analysed through practicalwelding as by electron beam welding (EBW), and by gas tungsten arc welding (GTAW).The research showed that all the techniques used (Varestraint testing, Gleeble testing,DSC thermal analysis and welding (GTAW repair and EBW)) in studying the weldabilityindependently provided important knowledge and most importantly that a combination ofthe results from these different techniques were necessary for the understanding of theweldability of these four alloys. From a microstructural point of view it has been possibleto show that δ phase contrary to what has generally been assumed improves theweldability due to its ability to inhibit grain growth and to assist in the healing of cracks.For future research, a new modified weldability testing method was developed where itis possible to perform Varestraint, Transvarestraint and spot-varestraint testing at ramspeeds from 15 to 300 mm/s using GTAW, plasma arc welding and laser welding." @default.
• W227538991 created "2016-06-24" @default.
• W227538991 creator A5072816575 @default.
• W227538991 date "2011-01-01" @default.
• W227538991 modified "2023-09-23" @default.
• W227538991 title "Weldability of Precipitation Hardening Superalloys – Influence of Microstructure" @default.
• W227538991 cites W1498910831 @default.
• W227538991 cites W1499145799 @default.
• W227538991 cites W1500228478 @default.
• W227538991 cites W153142431 @default.
• W227538991 cites W1533918231 @default.
• W227538991 cites W1535069602 @default.
• W227538991 cites W1578640710 @default.
• W227538991 cites W1580467448 @default.
• W227538991 cites W1605058418 @default.
• W227538991 cites W1674286174 @default.
• W227538991 cites W169291616 @default.
• W227538991 cites W177312603 @default.
• W227538991 cites W1965072220 @default.
• W227538991 cites W1980463454 @default.
• W227538991 cites W1989438933 @default.
• W227538991 cites W1990401258 @default.
• W227538991 cites W1990446108 @default.
• W227538991 cites W1990619538 @default.
• W227538991 cites W1993462637 @default.
• W227538991 cites W2001174169 @default.
• W227538991 cites W2002221749 @default.
• W227538991 cites W2007497249 @default.
• W227538991 cites W2008464910 @default.
• W227538991 cites W2013894405 @default.
• W227538991 cites W2014903538 @default.
• W227538991 cites W2015641485 @default.
• W227538991 cites W2020608088 @default.
• W227538991 cites W2023475044 @default.
• W227538991 cites W2032867342 @default.
• W227538991 cites W2033966853 @default.
• W227538991 cites W2045962705 @default.
• W227538991 cites W2047603450 @default.
• W227538991 cites W2050511480 @default.
• W227538991 cites W2052541824 @default.
• W227538991 cites W2061642118 @default.
• W227538991 cites W2065719774 @default.
• W227538991 cites W2073242881 @default.
• W227538991 cites W2084246949 @default.
• W227538991 cites W2093813075 @default.
• W227538991 cites W2096153416 @default.
• W227538991 cites W2106039758 @default.
• W227538991 cites W2114580202 @default.
• W227538991 cites W2154224231 @default.
• W227538991 cites W2170861641 @default.
• W227538991 cites W2178550123 @default.
• W227538991 cites W2297809661 @default.
• W227538991 cites W2301226006 @default.
• W227538991 cites W2305024135 @default.
• W227538991 cites W2313047577 @default.
• W227538991 cites W2326642672 @default.
• W227538991 cites W232941207 @default.
• W227538991 cites W2334471004 @default.
• W227538991 cites W252195205 @default.
• W227538991 cites W27475638 @default.
• W227538991 cites W2971105841 @default.
• W227538991 cites W3106757642 @default.
• W227538991 cites W50663429 @default.
• W227538991 cites W510596 @default.
• W227538991 cites W576070123 @default.
• W227538991 cites W607036857 @default.
• W227538991 cites W74331881 @default.
• W227538991 cites W749145121 @default.
• W227538991 cites W841412424 @default.
• W227538991 cites W85898304 @default.
• W227538991 cites W938564350 @default.
• W227538991 cites W1255602050 @default.
• W227538991 cites W1567177478 @default.
• W227538991 cites W2476321068 @default.
• W227538991 cites W2484284676 @default.
• W227538991 cites W2509532178 @default.
• W227538991 cites W2528294276 @default.
• W227538991 hasPublicationYear "2011" @default.
• W227538991 type Work @default.
• W227538991 sameAs 227538991 @default.
• W227538991 citedByCount "7" @default.
• W227538991 countsByYear W2275389912012 @default.
• W227538991 countsByYear W2275389912014 @default.
• W227538991 countsByYear W2275389912016 @default.
• W227538991 countsByYear W2275389912018 @default.
• W227538991 crossrefType "dissertation" @default.
• W227538991 hasAuthorship W227538991A5072816575 @default.
• W227538991 hasConcept C154634170 @default.
• W227538991 hasConcept C191897082 @default.
• W227538991 hasConcept C192562407 @default.
• W227538991 hasConcept C19474535 @default.
• W227538991 hasConcept C20480867 @default.
• W227538991 hasConcept C207055975 @default.
• W227538991 hasConcept C2778703219 @default.
• W227538991 hasConcept C2780026712 @default.
• W227538991 hasConcept C3450827 @default.
• W227538991 hasConcept C5335593 @default.
• W227538991 hasConcept C87976508 @default.
• W227538991 hasConcept C88504338 @default.
• W227538991 hasConceptScore W227538991C154634170 @default.

• next