1. Strategic design for enhancing performance in additively manufactured multi-material structures of high-strength steel and Ti6Al4V.
- Author
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Wei, Chao, Zhao, Zhuang, Wang, Chao, Shen, Xianfeng, Yang, Jialin, Wang, Guowei, Qin, Yu, Sun, Mingyan, Tang, Jingang, Yang, Yang, and Le, Guomin
- Subjects
THERMOPHYSICAL properties ,TENSILE strength ,AMALGAMATION ,STEEL ,SOLUBILITY - Abstract
Multi-material additive manufacturing (MMAM) is garnering escalating interest. Yet, joining dissimilar materials faces formidable challenges due to solubility limitations and divergences in thermophysical properties. Taking the joining of high-strength steel (HSS) and Ti6Al4V (TC4) as an example, this work seeks to address various challenges encountered in MMAM. An exhaustive inquiry was undertaken to scrutinize the effects of various joining strategies (direct joining, composition gradient paths, and interlayer strategy) and deposition strategies (deposition sequence, interlayer thickness, and process parameters) on the AM-induced bonding of HSS to TC4. The findings demonstrate that these advanced strategic designs can effectively mitigate challenges arising from disparities in material compatibility and thermophysical properties between HSS and TC4. Leveraging rigorous thermodynamic analyses and the strategic orchestration of building techniques, three HSS–Cu10Sn–Nb–TC4 samples were successfully fabricated via laser-directed energy deposition (LDED), each manifesting tensile strengths exceeding 200 MPa. This achievement heralds a notable leap forward in the amalgamation of materials, particularly high-strength steel and titanium alloys, which could provide valuable insights into other MMAM structures. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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