SwePub
Sök i LIBRIS databas

  Extended search

AMNE:(TEKNIK OCH TEKNOLOGIER) AMNE:(Materialteknik) AMNE:(Metallurgi och metalliska material)
 

Search: AMNE:(TEKNIK OCH TEKNOLOGIER) AMNE:(Materialteknik) AMNE:(Metallurgi och metalliska material) > (2010-2019) > Defect characteriza...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00005053naa a2200589 4500
001oai:DiVA.org:ltu-68924
003SwePub
008180528s2018 | |||||||||||000 ||eng|
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-689242 URI
0247 a https://doi.org/10.15406/aaoaj.2018.02.000442 DOI
040 a (SwePub)ltu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Neikter, Magnus,d 1988-u Luleå tekniska universitet,Materialvetenskap4 aut0 (Swepub:ltu)magnei
2451 0a Defect characterization of electron beam melted Ti-6Al-4V and Alloy 718 with X-ray microtomography
264 c 2018-05-18
264 1b MedCrave Group,c 2018
338 a electronic2 rdacarrier
520 a Electron beam melting (EBM) is emerging as a promising manufacturing process where metallic components are manufactured from three-dimensional (3D) computer aided design models by melting layers onto layers. There are several advantages with this manufacturing process such as near net shaping, reduced lead times and the possibility to decrease weight by topology optimization, aspects that are of interest for the aerospace industry. In this work two alloys, Ti-6Al-4V and Alloy 718, widely used within the aerospace industry were investigated with X-ray microtomography (XMT), to characterize defects such as lack of fusion (LOF) and inclusions. It was furthermore possible to view the macrostructure with XMT, which was compared to macrostructure images obtained by light optical microscopy (LOM). XMT proved to be a useful tool for defect characterization and both LOF and un-melted powder could be found in the two investigated samples. In the EBM built Ti-6Al-4V sample high density inclusions, believed to be composed of tungsten, were found. One of the high-density inclusions was found to be hollow, which indicate that the inclusion stems from the powder manufacturing process and not related with the EBM process. By performing defect analyses with the XMT software it was also possible to quantify the amount of LOF and un-melted powder in vol%. From the XMT-data meshes were produced so that finite element method (FEM) simulations could be performed. From these FEM simulations the significant impact of defects on the material properties was evident, as the defects led to high stress concentrations. It could moreover, with FEM, be shown that the as-built surface roughness of EBM material is of importance as high surface roughness led to increased stress concentrations.
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 TEKNIK OCH TEKNOLOGIERx Materialteknikx Annan materialteknik0 (SwePub)205992 hsv//swe
650 7a ENGINEERING AND TECHNOLOGYx Materials Engineeringx Other Materials Engineering0 (SwePub)205992 hsv//eng
650 7a TEKNIK OCH TEKNOLOGIERx Maskinteknikx Strömningsmekanik och akustik0 (SwePub)203062 hsv//swe
650 7a ENGINEERING AND TECHNOLOGYx Mechanical Engineeringx Fluid Mechanics and Acoustics0 (SwePub)203062 hsv//eng
650 7a TEKNIK OCH TEKNOLOGIERx Maskinteknikx Teknisk mekanik0 (SwePub)203012 hsv//swe
650 7a ENGINEERING AND TECHNOLOGYx Mechanical Engineeringx Applied Mechanics0 (SwePub)203012 hsv//eng
653 a X-ray tomography
653 a Ti-6Al-4V
653 a Alloy 718
653 a defects and electron beam melting
653 a Materialteknik
653 a Engineering Materials
653 a Hållfasthetslära
653 a Solid Mechanics
653 a Experimental Mechanics
653 a Experimentell mekanik
7001 a Forsberg, Fredriku Luleå tekniska universitet,Strömningslära och experimentell mekanik4 aut0 (Swepub:ltu)fred
7001 a Pederson, Robertu Department of Engineering Science, University West4 aut
7001 a Antti, Marta-Lenau Luleå tekniska universitet,Materialvetenskap4 aut0 (Swepub:ltu)marta
7001 a Åkerfeldt, Piau Luleå tekniska universitet,Materialvetenskap4 aut0 (Swepub:ltu)piaake
7001 a Larsson, Simonu Luleå tekniska universitet,Material- och solidmekanik4 aut0 (Swepub:ltu)simlar
7001 a Jonsén, Pär,d 1971-u Luleå tekniska universitet,Material- och solidmekanik4 aut0 (Swepub:ltu)parj
7001 a Puyoo, Geraldineu GKN-Aerospace Engine Systems4 aut
7102 a Luleå tekniska universitetb Materialvetenskap4 org
7730 t Aeronautics and Aerospace Open Access Journald : MedCrave Groupg 2:3, s. 139-145q 2:3<139-145x 2576-4500
8564 u https://ltu.diva-portal.org/smash/get/diva2:1210242/FULLTEXT01.pdfx primaryx Raw objecty fulltext:print
8564 u https://doi.org/10.15406/aaoaj.2018.02.00044
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-68924
8564 8u https://doi.org/10.15406/aaoaj.2018.02.00044

Find in a library

To the university's database

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.

 
pil uppåt Close

Copy and save the link in order to return to this view