A Zr-Co-Al Bulk Metallic Glass Derived from the Atomic-Cluster-Plus-Glue-Atom Model and Its Mechanical Properties

作者：Qiang Jianbing; Ding Xianzhen; Wang Yingmin^*; Wang Qing; Duan Qingming; Dong Chuang

来源：Transactions of the Indian Institute of Metals, 2012, 65(6): 577-580.

DOI：10.1007/s12666-012-0189-7

• Bulk metallic glass
• ZrAlCo
• Atomic-cluster-plus-glue-atom model
• Mechanical property

In the present work we have studied the formation of bulk metallic glass in the Zr-Co-Al system. Using the atomic-cluster-plus-glue-atom model, a cluster formula composition, [Co2Al2Zr7](Co2Zr) = Zr57.1Co28.6Al14.3), was derived to explore bulk metallic glass formation. Glass rod of 10 mm diameter can be made at this composition by copper mold casting. The glass alloy exhibited an undercooled liquid span of 43 K at a constant differential calorimetric heating rate of 40 K/min. Under uniaxial compression at room temperature, the alloy exhibited a yield strength of 2,100 MPa and a plastic strain of 10 %.

• 出版日期2012-12
• 单位大连理工大学