Enhanced tensile strength and ductility of bulk metallic glasses Zr52.5Cu17.9Al10Ni14.6Ti5 via high-pressure torsion

• Published in: Materials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 803; no. C; p. 140485
• Main Authors: Ren, Zhi Qiang, Churakova, A.A., Wang, Xiang, Goel, Sunkulp, Liu, Si Nan, You, Ze Sheng, Liu, Ying, Lan, Si, Gunderov, D.V., Wang, Jing Tao, Valiev, R.Z.
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 28.01.2021; Elsevier BV; Elsevier
• Subjects: Amorphous materials; Amorphous-crystalline composites; Chemical precipitation; Crystallites; Ductility; Ductilization window; Free volume; Inter-crystallite spacing; Metallic glasses; Nanocrystals; Precipitates; Room temperature; Strength; Tensile ductility; Tensile strength; Free volume; Tensile ductility; Ductilization window; Amorphous-crystalline composites; Strength; Inter-crystallite spacing

Zr52.5Cu17.9Al10Ni14.6Ti5 (Vit105) Bulk metallic glass is processed by High-Pressure Torsion up to 30 rotations at room temperature, showing simultaneous enhancement of both strength (2023 MPa) and ductility (0.45%). Nano-crystal precipitates with an average size of 45 nm inside the amorphous matrix...