Forming ability of the WC-based ceramic metal composites with different Fe-based binders by unique laser beam modulation
Additive manufacturing enables the production of cermet parts encompassing intricate geometries and tailored microstructures. The present study investigates the fabrication of WC-based Ceramic metal composites (CMC) with pure Fe and ferritic stainless steel (AISI Grade 430 L) green binders by contro...
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| Language: | English |
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Elsevier
2025-04-01
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| Series: | Next Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949822825000425 |
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| author | H.S. Maurya K. Juhani F. Sergejev R. Kumar A. Hussain K.G. Prashanth |
| author_facet | H.S. Maurya K. Juhani F. Sergejev R. Kumar A. Hussain K.G. Prashanth |
| author_sort | H.S. Maurya |
| collection | DOAJ |
| description | Additive manufacturing enables the production of cermet parts encompassing intricate geometries and tailored microstructures. The present study investigates the fabrication of WC-based Ceramic metal composites (CMC) with pure Fe and ferritic stainless steel (AISI Grade 430 L) green binders by controlling melt pool temperature during the Selective laser melting process. A study of crack restraining and formability of WC composite parts with different Fe-based binder compositions has been conducted by adapting Laser beam modulation (LBM). As a result of optimizing the laser beam with variations in laser power peaks (48, 60, and 72 Watt) and constant exposure times for each laser beam profile, the melt pool temperature was regulated, primary cracks in the parts were reduced and this resulted in the fabrication of the parts with reduced process defects such as internal thermal cracks. The reduction in cracks has been attributed to a lower thermal gradient, which has affected the microstructure and microhardness of the as-built parts. Scanning electron microscope (SEM) and X-ray diffraction (XRD) analysis have been used to study the microstructure and phase formation in the fabricated parts. The maximum microhardness (2048 ± 209 HV1) has been achieved for the fabricated cermets parts with ferritic stainless steel binder with the composition of WC-20 wt% FeCr. |
| format | Article |
| id | doaj-art-6e4a8e1db75c42a39f6fd5c3759c2b68 |
| institution | Kabale University |
| issn | 2949-8228 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Next Materials |
| spelling | doaj-art-6e4a8e1db75c42a39f6fd5c3759c2b682025-02-09T05:01:51ZengElsevierNext Materials2949-82282025-04-017100524Forming ability of the WC-based ceramic metal composites with different Fe-based binders by unique laser beam modulationH.S. Maurya0K. Juhani1F. Sergejev2R. Kumar3A. Hussain4K.G. Prashanth5Department of Mechanical and Industrial Engineering, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia; Department of Engineering Sciences and Mathematics, Luleå University of Technology, Luleå SE 97187, Sweden; Corresponding author at: Department of Mechanical and Industrial Engineering, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, EstoniaDepartment of Mechanical and Industrial Engineering, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, EstoniaDepartment of Mechanical and Industrial Engineering, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, EstoniaDepartment of Mechanical and Industrial Engineering, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia; Laboratory for Tribology and Interface Nanotechnology, Faculty of Mechanical Engineering, University of Ljubljana, Bogišićeva 8, Ljubljana 1000, SloveniaDepartment of Mechanical and Industrial Engineering, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, EstoniaDepartment of Mechanical and Industrial Engineering, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia; CBCMT, School of Mechanical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu 630014, IndiaAdditive manufacturing enables the production of cermet parts encompassing intricate geometries and tailored microstructures. The present study investigates the fabrication of WC-based Ceramic metal composites (CMC) with pure Fe and ferritic stainless steel (AISI Grade 430 L) green binders by controlling melt pool temperature during the Selective laser melting process. A study of crack restraining and formability of WC composite parts with different Fe-based binder compositions has been conducted by adapting Laser beam modulation (LBM). As a result of optimizing the laser beam with variations in laser power peaks (48, 60, and 72 Watt) and constant exposure times for each laser beam profile, the melt pool temperature was regulated, primary cracks in the parts were reduced and this resulted in the fabrication of the parts with reduced process defects such as internal thermal cracks. The reduction in cracks has been attributed to a lower thermal gradient, which has affected the microstructure and microhardness of the as-built parts. Scanning electron microscope (SEM) and X-ray diffraction (XRD) analysis have been used to study the microstructure and phase formation in the fabricated parts. The maximum microhardness (2048 ± 209 HV1) has been achieved for the fabricated cermets parts with ferritic stainless steel binder with the composition of WC-20 wt% FeCr.http://www.sciencedirect.com/science/article/pii/S2949822825000425WC-based compositesSLMLaser beam modulationMicrostructureCrack mitigation |
| spellingShingle | H.S. Maurya K. Juhani F. Sergejev R. Kumar A. Hussain K.G. Prashanth Forming ability of the WC-based ceramic metal composites with different Fe-based binders by unique laser beam modulation Next Materials WC-based composites SLM Laser beam modulation Microstructure Crack mitigation |
| title | Forming ability of the WC-based ceramic metal composites with different Fe-based binders by unique laser beam modulation |
| title_full | Forming ability of the WC-based ceramic metal composites with different Fe-based binders by unique laser beam modulation |
| title_fullStr | Forming ability of the WC-based ceramic metal composites with different Fe-based binders by unique laser beam modulation |
| title_full_unstemmed | Forming ability of the WC-based ceramic metal composites with different Fe-based binders by unique laser beam modulation |
| title_short | Forming ability of the WC-based ceramic metal composites with different Fe-based binders by unique laser beam modulation |
| title_sort | forming ability of the wc based ceramic metal composites with different fe based binders by unique laser beam modulation |
| topic | WC-based composites SLM Laser beam modulation Microstructure Crack mitigation |
| url | http://www.sciencedirect.com/science/article/pii/S2949822825000425 |
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