| Full text | |
| Author(s): |
de Freitas, Bruno Xavier
;
Antonini, Leonardo A.
;
Cury, Paula L. C. T.
;
da Silva, Viviane L. F.
;
Chaia, Nabil
;
Tomachuk, Celia R.
;
Mathieu, Stephane
;
Coelho, Gilberto C.
;
dos Santos, Claudinei
;
Nunes, Carlos A.
Total Authors: 10
|
| Document type: | Journal article |
| Source: | METALS; v. 11, n. 11, p. 16-pg., 2021-11-01. |
| Abstract | |
In order to develop a potential route to fabricate plates and clips for orthopedic applications, a Mg-3.4Dy-0.2Zn-0.4Zr (wt.%) alloy was produced and analyzed in different conditions: solution treated at 525 degrees C for 3 h, hot rolled and hot rolled and aged at 250 degrees C. The aging behavior of the rolled alloy was investigated during isothermal aging at 250 degrees C, and a significant peak was observed at 10 h. The electrochemical behavior was evaluated in 0.9 wt.% NaCl solution at 37 +/- 0.5 degrees C by potentiodynamic polarization and electrochemical impedance spectroscopy. The 525 degrees C-3 h and hot rolled specimens exhibited corrosion rates of 2.0 and 1.7 mm/year, respectively. The hot rolled and aged at 250 degrees C for 10 h specimen presented a grain size of 11.8 +/- 1.7 mu m with an intense macrotexture of the basal {0002} plane, hardness of 73 +/- 3 HV and higher impedance modulus and obtained the highest corrosion resistance with a corrosion rate of 0.9 mm/year. (AU) | |
| FAPESP's process: | 17/17257-5 - Processing and characterization of Mg-3,4Dy-0,2Zn-0,4Zr alloy aiming biomedical applications |
| Grantee: | Leonardo Anjolette Antonini |
| Support Opportunities: | Scholarships in Brazil - Scientific Initiation |
| FAPESP's process: | 18/20375-2 - Processing and microstructural and mechanical characterization of the biodegradable alloy Mg-4,8Y-2,8Gd-0,7Zr (% mass) for biomedical applications |
| Grantee: | Viviane Lima Freitas da Silva |
| Support Opportunities: | Scholarships in Brazil - Master |