Glass forming ability of Zr- and Fe-based alloys at quenching from melts

作者：Sun Jian Fei^*; Gao Yu Lai; Shen Jun; Wang Gang; Xing Da Wei; Zhou Bi De

来源：Journal of Harbin Institute of Technology, 2002, 9(2): 196-200.

• Buttons
• Glass forming ability
• Master alloy ingots
• Overheating

The master alloy ingots (MAI) with the nominal composition Zr52.5Ti5Cu17.9Ni14.6Al10 and Fe61Co7Zr10Mo5W2B 15 (at%) were prepared by arc-melting in Ti-guttered Ar atmosphere. The Zr-based buttons of 6 mm and 9 mm in diameter were fully amorphous, but those of 13 mm in diameter experienced crystallization. The glass forming ability (GFA) of Fe-based alloys was relatively lower, and the buttons obtained were fully crystallized. The microhardness of the Zr-based buttons was about 500 (Hv), and the Fe-based rod obtained by injection technique exhibited a high Vickers hardness of 1329. In addition, an amorphous-crystalline transition layers were observed in both the buttons and the rods.

• 出版日期2002