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- Title
Study on the Effect of Nickel Interlayer Addiiion on the Interface Microstructure and Properiies of Titanium/Steel Metal Composites Fabricated by Wire and Laser Addtive Manufacturing.
- Authors
CHENG Jian; XU Rongzheng; DING Dong; ZHANG Hetian
- Abstract
Atmtng at the problem that brittle Ti-Fe intermetalHc compounds are easily formed tn the additive manufacturing process of titanium/steel composites, which deteriorates the interface properties. In this paper, n^kel (ERN-1)was se!ected as the Interlayer,and the integrated preparation of TC4/309L composites was reaiized by laser fuse additive manufacturing technology. The effect of Ni interlayer addition on the rmcrostructure and properties of the interface was analyzed. The resuits show that "The interface of TC4/309L composites with Ni interlayer Is mainly composed of Fe/Ni interface and Ti/Ni interface. For the Fe/Ni interface,Fe and Ni form an infinite soiid solution, and no obvious defects such as cracks and pores are found, achieving a good metallurgical bonding. The Ti/Ni interface contains TiFe,TiNi3,TiNi,Ti2Ni and other brittle intermetalic compounds,and the maximum hardness of the interface reaches 670. 1 HV. The micro-area tensie test of the interface bondng strength shows that the bonding strength is 30. 5 MPa,and it breaks at the Ti/Ni Interface,showing brittie fracture characteristics.
- Subjects
METALLIC composites; TITANIUM; PEARLITIC steel; MICROSTRUCTURE; STEEL; MANUFACTURING processes
- Publication
Nonferrous Metals Engineering, 2024, Vol 14, Issue 6, p37
- ISSN
2095-1744
- Publication type
Article
- DOI
10.3969/j.issn.2095-1744.2024.06.005