Direct laser deposition of crack-free CM247LC thin walls: Mechanical properties and microstructural effects of heat treatment
CM247LC is classified as a non-weldable Ni alloy due to the high Ti + Al content, which makes it susceptible to cracking. It is particularly prone to microcracking when processed by direct laser deposition (DLD). In this work, multiple single walls were manufactured by DLD in CM247LC using two diffe...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-12-01
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| Series: | Materials & Design |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S026412752100678X |
| _version_ | 1818720337534124032 |
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| author | Abdullah Alhuzaim Stano Imbrogno Moataz M. Attallah |
| author_facet | Abdullah Alhuzaim Stano Imbrogno Moataz M. Attallah |
| author_sort | Abdullah Alhuzaim |
| collection | DOAJ |
| description | CM247LC is classified as a non-weldable Ni alloy due to the high Ti + Al content, which makes it susceptible to cracking. It is particularly prone to microcracking when processed by direct laser deposition (DLD). In this work, multiple single walls were manufactured by DLD in CM247LC using two different laser modes: continuous wave and pulse wave (PW). The manufactured walls were studied during processing and post-processing, and characterised by scanning electron microscopy, electron backscattered diffraction, thermal analysis and X-ray diffraction. The results indicate that crack-free conditions during the deposition process and the subsequent thermal processing can be achieved using the PW laser mode and that this can also lead to outstanding mechanical properties. |
| first_indexed | 2024-12-17T20:21:14Z |
| format | Article |
| id | doaj.art-13de827b0aef413588fd593db3542293 |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-12-17T20:21:14Z |
| publishDate | 2021-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-13de827b0aef413588fd593db35422932022-12-21T21:33:56ZengElsevierMaterials & Design0264-12752021-12-01211110123Direct laser deposition of crack-free CM247LC thin walls: Mechanical properties and microstructural effects of heat treatmentAbdullah Alhuzaim0Stano Imbrogno1Moataz M. Attallah2School of Metallurgy and Material Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom; Mechanical Engineering Department, Jubail University College, Jubail Industrial City, Saudi ArabiaSchool of Metallurgy and Material Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United KingdomSchool of Metallurgy and Material Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom; Corresponding author.CM247LC is classified as a non-weldable Ni alloy due to the high Ti + Al content, which makes it susceptible to cracking. It is particularly prone to microcracking when processed by direct laser deposition (DLD). In this work, multiple single walls were manufactured by DLD in CM247LC using two different laser modes: continuous wave and pulse wave (PW). The manufactured walls were studied during processing and post-processing, and characterised by scanning electron microscopy, electron backscattered diffraction, thermal analysis and X-ray diffraction. The results indicate that crack-free conditions during the deposition process and the subsequent thermal processing can be achieved using the PW laser mode and that this can also lead to outstanding mechanical properties.http://www.sciencedirect.com/science/article/pii/S026412752100678XNickel SuperalloyCM247LCDirect Laser DepositionMicrostructureMechanical properties |
| spellingShingle | Abdullah Alhuzaim Stano Imbrogno Moataz M. Attallah Direct laser deposition of crack-free CM247LC thin walls: Mechanical properties and microstructural effects of heat treatment Materials & Design Nickel Superalloy CM247LC Direct Laser Deposition Microstructure Mechanical properties |
| title | Direct laser deposition of crack-free CM247LC thin walls: Mechanical properties and microstructural effects of heat treatment |
| title_full | Direct laser deposition of crack-free CM247LC thin walls: Mechanical properties and microstructural effects of heat treatment |
| title_fullStr | Direct laser deposition of crack-free CM247LC thin walls: Mechanical properties and microstructural effects of heat treatment |
| title_full_unstemmed | Direct laser deposition of crack-free CM247LC thin walls: Mechanical properties and microstructural effects of heat treatment |
| title_short | Direct laser deposition of crack-free CM247LC thin walls: Mechanical properties and microstructural effects of heat treatment |
| title_sort | direct laser deposition of crack free cm247lc thin walls mechanical properties and microstructural effects of heat treatment |
| topic | Nickel Superalloy CM247LC Direct Laser Deposition Microstructure Mechanical properties |
| url | http://www.sciencedirect.com/science/article/pii/S026412752100678X |
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