Experimental investigation on selective laser melting additive manufacturing of non-ferromagnetic heterogeneous material based on TiNi alloy with Ta coating
| Title: | Experimental investigation on selective laser melting additive manufacturing of non-ferromagnetic heterogeneous material based on TiNi alloy with Ta coating |
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| Authors: | Hui Long, Weihui Wu, Di Wang, Linqing Liu |
| Source: | Advances in Mechanical Engineering, Vol 15 (2023) |
| Publisher Information: | SAGE Publishing, 2023. |
| Publication Year: | 2023 |
| Collection: | LCC:Mechanical engineering and machinery |
| Subject Terms: | Mechanical engineering and machinery, TJ1-1570 |
| More Details: | In order to manufacture non-ferromagnetic heterogeneous material by Selective Laser Melting (SLM), it is necessary to solve the separation problem of non-ferromagnetic mixed powders after SLM forming. This research presents how to resolve this problem using TiNi/Ta mixed powders by ultrasonic vibration screening method and the analysis of SLM manufacturing experiment for non-ferromagnetic heterogeneous material. The purity of TiNi and Ta powders after separation could reach 99.7087%wt% and 98.8501wt% respectively, which both reached a relatively high purity. A TiNi alloy sample with Ta coating and TiNi/Ta gradient transition was manufactured successfully by SLM. The material interface of the sample achieves metallurgical bonding, and the color of the sample profile shows a gradient transition. The EDS analysis shows that the material composition changes from Ta ->Ta/TiNi gradient ->TiNi from surface to inside of the sample. The Ta coating contains over 92.5wt% Ta, and the TiNi matrix contains over 98.69wt% TiNi. Along the powder laying direction, it is difficult to clean the small powder near the solid-powder or solid-solid interfaces made of two different materials, which causes micro polluted areas near the interfaces. This study also provides a new method for integrated manufacturing of TiNi alloy part with Ta coating. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 1687-8140 16878132 |
| Relation: | https://doaj.org/toc/1687-8140 |
| DOI: | 10.1177/16878132231209669 |
| Access URL: | https://doaj.org/article/f40407a313b04c6699026f97b3d30109 |
| Accession Number: | edsdoj.f40407a313b04c6699026f97b3d30109 |
| Database: | Directory of Open Access Journals |
| ISSN: | 16878140 16878132 |
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| DOI: | 10.1177/16878132231209669 |
| Published in: | Advances in Mechanical Engineering |
| Language: | English |