Microstructure and mechanical properties of ASTM A131 EH36 steel fabricated by laser aided additive manufacturing
In this paper, a direct laser deposition (DLD) process was used to print ASTM A131 EH36 high strength low alloy steel samples in four different orientations, namely, horizontal 0° (XY_0°) & 45° (XY_45°) and vertical 90° (XZ_90°) & 45° (XZ_45°), with an EH36 steel powder. The microstructures,...
| Main Authors: | , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/160539 |
| _version_ | 1826125991144062976 |
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| author | Wang, Jingjing Chew, Youxiang Wu, Wenjin Jing, Wei Tan, Xipeng Liu, Erjia Bi, Guijun Tor, Shu Beng Tan, Sharine Ying Jia Lee, Yuan Hao Merchant, Aziz Weng, Fei Liu, Yang |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Wang, Jingjing Chew, Youxiang Wu, Wenjin Jing, Wei Tan, Xipeng Liu, Erjia Bi, Guijun Tor, Shu Beng Tan, Sharine Ying Jia Lee, Yuan Hao Merchant, Aziz Weng, Fei Liu, Yang |
| author_sort | Wang, Jingjing |
| collection | NTU |
| description | In this paper, a direct laser deposition (DLD) process was used to print ASTM A131 EH36 high strength low alloy steel samples in four different orientations, namely, horizontal 0° (XY_0°) & 45° (XY_45°) and vertical 90° (XZ_90°) & 45° (XZ_45°), with an EH36 steel powder. The microstructures, mechanical properties and fracture behavior of the printed materials, were evaluated in detail. Tensile, charpy impact and fatigue tests were conducted to measure the mechanical properties of the materials. The results showed that all the EH36 steel samples printed in the four orientations satisfied the ASTM standards for the tensile and charpy impact properties of EH36 steel. The microstructures of the EH36 steel samples and the thermal cycles encountered in the different build orientations could be tuned by controlling the printing process parameters and scanning method. The microstructure was closely correlated with the mechanical properties of the built samples. The fatigue fracture mechanism of the printed EH36 steel samples was also proposed. |
| first_indexed | 2024-10-01T06:45:28Z |
| format | Journal Article |
| id | ntu-10356/160539 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:45:28Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1605392022-07-26T07:12:19Z Microstructure and mechanical properties of ASTM A131 EH36 steel fabricated by laser aided additive manufacturing Wang, Jingjing Chew, Youxiang Wu, Wenjin Jing, Wei Tan, Xipeng Liu, Erjia Bi, Guijun Tor, Shu Beng Tan, Sharine Ying Jia Lee, Yuan Hao Merchant, Aziz Weng, Fei Liu, Yang School of Mechanical and Aerospace Engineering Singapore Centre for 3D Printing Singapore Institute of Manufacturing Technology Engineering::Mechanical engineering Build Orientation Microstructure In this paper, a direct laser deposition (DLD) process was used to print ASTM A131 EH36 high strength low alloy steel samples in four different orientations, namely, horizontal 0° (XY_0°) & 45° (XY_45°) and vertical 90° (XZ_90°) & 45° (XZ_45°), with an EH36 steel powder. The microstructures, mechanical properties and fracture behavior of the printed materials, were evaluated in detail. Tensile, charpy impact and fatigue tests were conducted to measure the mechanical properties of the materials. The results showed that all the EH36 steel samples printed in the four orientations satisfied the ASTM standards for the tensile and charpy impact properties of EH36 steel. The microstructures of the EH36 steel samples and the thermal cycles encountered in the different build orientations could be tuned by controlling the printing process parameters and scanning method. The microstructure was closely correlated with the mechanical properties of the built samples. The fatigue fracture mechanism of the printed EH36 steel samples was also proposed. National Research Foundation (NRF) This work was supported by the Singapore Centre for 3D Printing, Nanyang Technological University, Singapore and funded by the National Research Foundation, Prime Minister's Office, Singapore under the Medium-Sized Centre funding scheme and the Research Collaboration Agreement between NTU and Keppel Marine & Deepwater Technology, Singapore. 2022-07-26T07:12:19Z 2022-07-26T07:12:19Z 2021 Journal Article Wang, J., Chew, Y., Wu, W., Jing, W., Tan, X., Liu, E., Bi, G., Tor, S. B., Tan, S. Y. J., Lee, Y. H., Merchant, A., Weng, F. & Liu, Y. (2021). Microstructure and mechanical properties of ASTM A131 EH36 steel fabricated by laser aided additive manufacturing. Materials Characterization, 174, 110949-. https://dx.doi.org/10.1016/j.matchar.2021.110949 1044-5803 https://hdl.handle.net/10356/160539 10.1016/j.matchar.2021.110949 2-s2.0-85101422577 174 110949 en Materials Characterization © 2021 Published by Elsevier Inc. All rights reserved. |
| spellingShingle | Engineering::Mechanical engineering Build Orientation Microstructure Wang, Jingjing Chew, Youxiang Wu, Wenjin Jing, Wei Tan, Xipeng Liu, Erjia Bi, Guijun Tor, Shu Beng Tan, Sharine Ying Jia Lee, Yuan Hao Merchant, Aziz Weng, Fei Liu, Yang Microstructure and mechanical properties of ASTM A131 EH36 steel fabricated by laser aided additive manufacturing |
| title | Microstructure and mechanical properties of ASTM A131 EH36 steel fabricated by laser aided additive manufacturing |
| title_full | Microstructure and mechanical properties of ASTM A131 EH36 steel fabricated by laser aided additive manufacturing |
| title_fullStr | Microstructure and mechanical properties of ASTM A131 EH36 steel fabricated by laser aided additive manufacturing |
| title_full_unstemmed | Microstructure and mechanical properties of ASTM A131 EH36 steel fabricated by laser aided additive manufacturing |
| title_short | Microstructure and mechanical properties of ASTM A131 EH36 steel fabricated by laser aided additive manufacturing |
| title_sort | microstructure and mechanical properties of astm a131 eh36 steel fabricated by laser aided additive manufacturing |
| topic | Engineering::Mechanical engineering Build Orientation Microstructure |
| url | https://hdl.handle.net/10356/160539 |
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