Two-Component Metal Injection Moulding of Ti-6Al-4V and Stainless Steel Bi-Material Parts
| Autor: | Frank Petzoldt, Marco Mulser |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Biocompatibility 020502 materials Mechanical Engineering Metallurgy chemistry.chemical_element Sintering 02 engineering and technology Raw material 020401 chemical engineering 0205 materials engineering chemistry Mechanics of Materials Ultimate tensile strength General Materials Science Injection moulding 0204 chemical engineering Composite material Material properties Shrinkage Titanium |
| Zdroj: | Key Engineering Materials. 704:148-154 |
| ISSN: | 1662-9795 |
| Popis: | Two-component metal injection moulding (2C-MIM) allows producing functionally graded metal parts of complex shape by co-sintering. Until now several studies have demonstrated that different material properties can be combined. Another promising material combination is titanium and iron-based materials. It can combine the biocompatibility and low density of titanium with a ductile and cost efficient stainless steel. However, co-sintering these materials reveals challenges due to a significant mismatch in sintering shrinkage and limitations in sintering temperature for both materials. The recent study showed that Ti-6Al-4V can be joined to the stainless steel 316L by 2C-MIM provided that certain constraints are taken in account. The quality of the interface before and after co-sintering is a crucial factor for intact parts after processing. By applying sinterdilatometry the mismatch in shrinkage was compensated by using adjusted powder characteristics and tailored feedstock compositions. A co-sintering cycle was defined with regard to the sintering characteristics of both materials. The developed two-component specimens revealed significant interdiffusion of alloying elements at the Ti-6Al-4V / 316L interface and a tensile strength of 282 MPa after co-sintering. |
| Databáze: | OpenAIRE |
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