In-situ TiC particle-reinforced Hastelloy X superalloy fabricated by laser additive manufacturing
In-situ metal matrix composites are desirable for achieving optimum mechanical properties. This study investigated the enhancement of mechanical performance in Hastelloy X (HX) superalloy through in-situ synthesis of TiC and γ′ phases via titanium (Ti) addition using a high-throughput laser additive...
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Elsevier
2025-05-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425006714 |
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| author | Chen Wang Li Yang Rui-Xin Sheng Shuai Guan Zhong-Nan Bi Hua Zhang Hai-Liang Huang Liang Jiang Li-Long Zhu Xin Zhou |
| author_facet | Chen Wang Li Yang Rui-Xin Sheng Shuai Guan Zhong-Nan Bi Hua Zhang Hai-Liang Huang Liang Jiang Li-Long Zhu Xin Zhou |
| author_sort | Chen Wang |
| collection | DOAJ |
| description | In-situ metal matrix composites are desirable for achieving optimum mechanical properties. This study investigated the enhancement of mechanical performance in Hastelloy X (HX) superalloy through in-situ synthesis of TiC and γ′ phases via titanium (Ti) addition using a high-throughput laser additive manufacturing system. The influence of Ti content on phase evolution, microstructure, and mechanical properties was comprehensively analyzed for both the as-deposited and heat-treated HX superalloys. The results revealed that increasing Ti content exacerbated micro-segregation during the deposition, promoting pronounced dendritic growth and a higher σ phase volume fraction. These microstructural changes enhanced tensile strength while concurrently elevated cracking susceptibility, with macroscopic cracking detected upon reaching 5 wt% Ti. Following heat treatment, micro-segregation was significantly reduced. In alloys containing 2–4 wt% Ti, TiC and nano-sized γ′ phases precipitated after heat treatment, leading to a 40 % improvement in yield strength and tensile strength compared to the baseline HX superalloy, while maintaining an elongation of approximately 30 %. |
| format | Article |
| id | doaj-art-90bfdd8d743f4b8a8242fb364709cff8 |
| institution | DOAJ |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-90bfdd8d743f4b8a8242fb364709cff82025-08-20T02:49:22ZengElsevierJournal of Materials Research and Technology2238-78542025-05-01361511152110.1016/j.jmrt.2025.03.161In-situ TiC particle-reinforced Hastelloy X superalloy fabricated by laser additive manufacturingChen Wang0Li Yang1Rui-Xin Sheng2Shuai Guan3Zhong-Nan Bi4Hua Zhang5Hai-Liang Huang6Liang Jiang7Li-Long Zhu8Xin Zhou9Institute for Advanced Studies in Precision Materials, Yantai University, Yantai, 264005, PR China; Shandong Key Laboratory of Advanced Structural Materials Genome Engineering, Yantai University, Yantai, 264005, PR ChinaResearch Institute of Advanced Materials (Shenzhen) Co., Ltd, Shenzhen, 518017, PR ChinaInstitute for Advanced Studies in Precision Materials, Yantai University, Yantai, 264005, PR China; Shandong Key Laboratory of Advanced Structural Materials Genome Engineering, Yantai University, Yantai, 264005, PR ChinaResearch Institute of Advanced Materials (Shenzhen) Co., Ltd, Shenzhen, 518017, PR ChinaResearch Institute of Advanced Materials (Shenzhen) Co., Ltd, Shenzhen, 518017, PR ChinaInstitute for Advanced Studies in Precision Materials, Yantai University, Yantai, 264005, PR China; Shandong Key Laboratory of Advanced Structural Materials Genome Engineering, Yantai University, Yantai, 264005, PR ChinaInstitute for Advanced Studies in Precision Materials, Yantai University, Yantai, 264005, PR China; Shandong Key Laboratory of Advanced Structural Materials Genome Engineering, Yantai University, Yantai, 264005, PR ChinaInstitute for Advanced Studies in Precision Materials, Yantai University, Yantai, 264005, PR China; Shandong Key Laboratory of Advanced Structural Materials Genome Engineering, Yantai University, Yantai, 264005, PR China; Corresponding author. Institute for Advanced Studies in Precision Materials, Yantai University, Yantai, 264005, PR China.Institute for Advanced Studies in Precision Materials, Yantai University, Yantai, 264005, PR China; Shandong Key Laboratory of Advanced Structural Materials Genome Engineering, Yantai University, Yantai, 264005, PR ChinaInstitute for Advanced Studies in Precision Materials, Yantai University, Yantai, 264005, PR China; Shandong Key Laboratory of Advanced Structural Materials Genome Engineering, Yantai University, Yantai, 264005, PR China; Corresponding author. Institute for Advanced Studies in Precision Materials, Yantai University, Yantai, 264005, PR China.In-situ metal matrix composites are desirable for achieving optimum mechanical properties. This study investigated the enhancement of mechanical performance in Hastelloy X (HX) superalloy through in-situ synthesis of TiC and γ′ phases via titanium (Ti) addition using a high-throughput laser additive manufacturing system. The influence of Ti content on phase evolution, microstructure, and mechanical properties was comprehensively analyzed for both the as-deposited and heat-treated HX superalloys. The results revealed that increasing Ti content exacerbated micro-segregation during the deposition, promoting pronounced dendritic growth and a higher σ phase volume fraction. These microstructural changes enhanced tensile strength while concurrently elevated cracking susceptibility, with macroscopic cracking detected upon reaching 5 wt% Ti. Following heat treatment, micro-segregation was significantly reduced. In alloys containing 2–4 wt% Ti, TiC and nano-sized γ′ phases precipitated after heat treatment, leading to a 40 % improvement in yield strength and tensile strength compared to the baseline HX superalloy, while maintaining an elongation of approximately 30 %.http://www.sciencedirect.com/science/article/pii/S2238785425006714Directed energy depositionHigh-throughput composition designIn-situ generated carbidesHastelloy X |
| spellingShingle | Chen Wang Li Yang Rui-Xin Sheng Shuai Guan Zhong-Nan Bi Hua Zhang Hai-Liang Huang Liang Jiang Li-Long Zhu Xin Zhou In-situ TiC particle-reinforced Hastelloy X superalloy fabricated by laser additive manufacturing Journal of Materials Research and Technology Directed energy deposition High-throughput composition design In-situ generated carbides Hastelloy X |
| title | In-situ TiC particle-reinforced Hastelloy X superalloy fabricated by laser additive manufacturing |
| title_full | In-situ TiC particle-reinforced Hastelloy X superalloy fabricated by laser additive manufacturing |
| title_fullStr | In-situ TiC particle-reinforced Hastelloy X superalloy fabricated by laser additive manufacturing |
| title_full_unstemmed | In-situ TiC particle-reinforced Hastelloy X superalloy fabricated by laser additive manufacturing |
| title_short | In-situ TiC particle-reinforced Hastelloy X superalloy fabricated by laser additive manufacturing |
| title_sort | in situ tic particle reinforced hastelloy x superalloy fabricated by laser additive manufacturing |
| topic | Directed energy deposition High-throughput composition design In-situ generated carbides Hastelloy X |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425006714 |
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