| Full text | |
| Author(s): |
Vidilli, Andre L.
;
Coury, Francisco G.
;
Gonzalez, Gonzalo
;
Otani, Lucas B.
;
Amigo, Vicente
;
Bolfarini, Claudemiro
Total Authors: 6
|
| Document type: | Journal article |
| Source: | METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE; v. 55, n. 1, p. 17-pg., 2023-10-18. |
| Abstract | |
In the present study, Ti and B were added to lightweight Fe-Mn-Al-C steels matrix with 0, 0.1, and 0.4 wt pct C in order to evaluate the in-situ formation of reinforcing particles and their influence on the properties. The compositions were tailored by thermodynamic calculations and experimentally validated. Both titanium and boron were introduced in stoichiometry proportions for TiB2 formation. The composites were processed by arc-melting followed by hot rolling and annealing. The experimental results showed that carbon plays a key role in the system since it leads to TiC and (Fe,Mn)(2)B formation and, consequently, reduction of the TiB2 fraction. The composite with the highest Ti, B, and C contents achieved the highest specific modulus value (29.5 GPa cm(3) g(-1)), with a density and modulus of elasticity of 7.09 g cm(-3) and 209.3 GPa, respectively. (AU) | |
| FAPESP's process: | 16/11309-0 - The study, development and application of a hybrid process: Additive Manufacturing (AM) plus High Speed Machining/Grinding (HSM/G) |
| Grantee: | Reginaldo Teixeira Coelho |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 20/05049-1 - Design and evaluation of the mechanical properties of high modulus low-density steel - with formation of TiB2 in situ - processed by additive manufacturing and powder metallurgy |
| Grantee: | André Luiz Vidilli |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 21/11537-1 - Processing and characterization of nanostructured lightweight steels reinforced with TiB2 by additive manufacturing and powder metallurgy |
| Grantee: | André Luiz Vidilli |
| Support Opportunities: | Scholarships abroad - Research Internship - Doctorate |