Preparation, Characterization, and Properties of Novel Ti-Zr-Be-Co Bulk Metallic Glasses
1
State Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, No. 1037 Luoyu Road, Wuhan 430074, China
2
State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China
*
Author to whom correspondence should be addressed.
Materials 2020, 13(1), 223; https://doi.org/10.3390/ma13010223
Received: 4 December 2019
/
Revised: 2 January 2020
/
Accepted: 3 January 2020
/
Published: 4 January 2020
We developed novel Ti-Zr-Be-Co bulk metallic glasses through Co addition based on a ternary Ti45Zr20Be35 alloy. By altering the alloying routes and alloying contents, the influence of Co alloying on glass-forming ability, thermal stability, thermoplastic formability, crystallization behavior, and corrosion resistance has been investigated systematically. It was found that the best alloying route for enhancing the glass-forming ability, thermoplastic formability, compressive plasticity, and corrosion resistance is to replace Be by Co. Ti45Zr20Be23Co12 possesses the largest critical diameter of 15 mm for glass formation. Ti45Zr20Be27Co8 possesses the highest thermoplastic formability which is comparable to that of Vitreloy alloys. Ti45Zr20Be25Co10 exhibits the largest room temperature plasticity of 15.7% together with a high specific strength of 3.90 × 105 Nm/kg. The addition of Co also strongly affects the crystallization behavior of the base alloy, resulting in a more complex crystallization process. The corrosion resistance of Ti-Zr-Be alloy in 1 mol/L HCl solution can also be enhanced by Co alloying. The related mechanisms have been explained in detail, which provide guidance for the composition design of Ti-based metallic glasses with improved properties.
View Full-Text
Keywords:
bulk metallic glasses; titanium alloys; glass-forming ability; thermoplastic formability; compressive properties; crystallization behavior; corrosion resistance
▼
Show Figures
Figure 1
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
- Supplementary File 1:
PDF-Document (PDF, 265 KiB)
MDPI and ACS Style
Gong, P.; Li, F.; Jin, J. Preparation, Characterization, and Properties of Novel Ti-Zr-Be-Co Bulk Metallic Glasses. Materials 2020, 13, 223. https://doi.org/10.3390/ma13010223
AMA Style
Gong P, Li F, Jin J. Preparation, Characterization, and Properties of Novel Ti-Zr-Be-Co Bulk Metallic Glasses. Materials. 2020; 13(1):223. https://doi.org/10.3390/ma13010223
Chicago/Turabian StyleGong, Pan, Fangwei Li, and Junsong Jin. 2020. "Preparation, Characterization, and Properties of Novel Ti-Zr-Be-Co Bulk Metallic Glasses" Materials 13, no. 1: 223. https://doi.org/10.3390/ma13010223
Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.
