Fabrication and strengthening mechanism of crack-free nano-TiC reinforced IN738LC with enhanced mechanical properties by laser powder bed fusion
IN738LC alloy has broad application potential in modern aerospace and energy industries due to its excellent high-temperature durability, excellent corrosion and fatigue resistance, however, its application has been greatly limited due to its high crack sensitivity. To address this challenge, this r...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-11-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423027321 |
| _version_ | 1797301544967733248 |
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| author | Chang Shu Siyuan Chen Zhiyu Zheng Xuben Lu Weining Li Michele De Lisi Prveen Bidare Xuedao Shu Khamis Essa |
| author_facet | Chang Shu Siyuan Chen Zhiyu Zheng Xuben Lu Weining Li Michele De Lisi Prveen Bidare Xuedao Shu Khamis Essa |
| author_sort | Chang Shu |
| collection | DOAJ |
| description | IN738LC alloy has broad application potential in modern aerospace and energy industries due to its excellent high-temperature durability, excellent corrosion and fatigue resistance, however, its application has been greatly limited due to its high crack sensitivity. To address this challenge, this research proposes a method of incorporating TiC nanoparticles to mitigate cracks and enhance the strength of the nickel-based materials. The crack-free TiC-IN738LC materials were successfully fabricated using laser-powder bed fusion. The relationship between the processing parameters and processed quality was studied. The fracture morphology and mechanical properties of samples were analyzed and the strengthening mechanisms of nano-TiC particles were clarified. The results showed that volume energy density (VED) = 111.1J/mm3 is the optimal processing parameter with the laser energy 225W, scanning speed 750 mm/s, and 0.09 mm hatch distance. The effects of processing parameters were discussed in depth. Compared with the virgin IN738LC, the microhardness of TiC-IN738LC is improved by 20 %–40 %, and the tensile strength of TiC-IN738LC is enhanced by 5%–30 %, respectively, which indicates the significant strengthening effect of nano-TiC on IN738LC. The synergistic effect of fine grain strengthening, load-bearing strengthening and Orowan strengthening mechanisms was accounted for the performance enhancement. The research results provide an experimental reference for selecting the processing parameters of TiC-IN738LC. |
| first_indexed | 2024-03-07T23:23:10Z |
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| id | doaj.art-ba8a41da7150458f9a76cec7b9687012 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-07T23:23:10Z |
| publishDate | 2023-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-ba8a41da7150458f9a76cec7b96870122024-02-21T05:27:13ZengElsevierJournal of Materials Research and Technology2238-78542023-11-012738353848Fabrication and strengthening mechanism of crack-free nano-TiC reinforced IN738LC with enhanced mechanical properties by laser powder bed fusionChang Shu0Siyuan Chen1Zhiyu Zheng2Xuben Lu3Weining Li4Michele De Lisi5Prveen Bidare6Xuedao Shu7Khamis Essa8Department of Mechanical Engineering, University of Birmingham, Birmingham, B15 2TT, UK; Corresponding author.Faculty of Mechanical Engineering and Mechanics, Ningbo University, Ningbo, 315211, China; Zhejiang Key Laboratory of Part Rolling Forming Technology, Ningbo University, Ningbo, 315211, ChinaFaculty of Mechanical Engineering and Mechanics, Ningbo University, Ningbo, 315211, China; Zhejiang Key Laboratory of Part Rolling Forming Technology, Ningbo University, Ningbo, 315211, ChinaFaculty of Mechanical Engineering and Mechanics, Ningbo University, Ningbo, 315211, China; Zhejiang Key Laboratory of Part Rolling Forming Technology, Ningbo University, Ningbo, 315211, ChinaDepartment of Mechanical Engineering, University of Birmingham, Birmingham, B15 2TT, UKDepartment of Mechanical Engineering, University of Birmingham, Birmingham, B15 2TT, UKDepartment of Mechanical Engineering, University of Birmingham, Birmingham, B15 2TT, UKFaculty of Mechanical Engineering and Mechanics, Ningbo University, Ningbo, 315211, China; Zhejiang Key Laboratory of Part Rolling Forming Technology, Ningbo University, Ningbo, 315211, ChinaDepartment of Mechanical Engineering, University of Birmingham, Birmingham, B15 2TT, UK; Corresponding author.IN738LC alloy has broad application potential in modern aerospace and energy industries due to its excellent high-temperature durability, excellent corrosion and fatigue resistance, however, its application has been greatly limited due to its high crack sensitivity. To address this challenge, this research proposes a method of incorporating TiC nanoparticles to mitigate cracks and enhance the strength of the nickel-based materials. The crack-free TiC-IN738LC materials were successfully fabricated using laser-powder bed fusion. The relationship between the processing parameters and processed quality was studied. The fracture morphology and mechanical properties of samples were analyzed and the strengthening mechanisms of nano-TiC particles were clarified. The results showed that volume energy density (VED) = 111.1J/mm3 is the optimal processing parameter with the laser energy 225W, scanning speed 750 mm/s, and 0.09 mm hatch distance. The effects of processing parameters were discussed in depth. Compared with the virgin IN738LC, the microhardness of TiC-IN738LC is improved by 20 %–40 %, and the tensile strength of TiC-IN738LC is enhanced by 5%–30 %, respectively, which indicates the significant strengthening effect of nano-TiC on IN738LC. The synergistic effect of fine grain strengthening, load-bearing strengthening and Orowan strengthening mechanisms was accounted for the performance enhancement. The research results provide an experimental reference for selecting the processing parameters of TiC-IN738LC.http://www.sciencedirect.com/science/article/pii/S2238785423027321NanoparticlesIN738LCLaser-powder bed fusionMechanical propertiesStrengthening mechanism |
| spellingShingle | Chang Shu Siyuan Chen Zhiyu Zheng Xuben Lu Weining Li Michele De Lisi Prveen Bidare Xuedao Shu Khamis Essa Fabrication and strengthening mechanism of crack-free nano-TiC reinforced IN738LC with enhanced mechanical properties by laser powder bed fusion Journal of Materials Research and Technology Nanoparticles IN738LC Laser-powder bed fusion Mechanical properties Strengthening mechanism |
| title | Fabrication and strengthening mechanism of crack-free nano-TiC reinforced IN738LC with enhanced mechanical properties by laser powder bed fusion |
| title_full | Fabrication and strengthening mechanism of crack-free nano-TiC reinforced IN738LC with enhanced mechanical properties by laser powder bed fusion |
| title_fullStr | Fabrication and strengthening mechanism of crack-free nano-TiC reinforced IN738LC with enhanced mechanical properties by laser powder bed fusion |
| title_full_unstemmed | Fabrication and strengthening mechanism of crack-free nano-TiC reinforced IN738LC with enhanced mechanical properties by laser powder bed fusion |
| title_short | Fabrication and strengthening mechanism of crack-free nano-TiC reinforced IN738LC with enhanced mechanical properties by laser powder bed fusion |
| title_sort | fabrication and strengthening mechanism of crack free nano tic reinforced in738lc with enhanced mechanical properties by laser powder bed fusion |
| topic | Nanoparticles IN738LC Laser-powder bed fusion Mechanical properties Strengthening mechanism |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423027321 |
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