Formation, thermal stability and mechanical properties of Ti42.5Zr7.sCu40NisSn5 bulk metallic glass

• 来源期刊: 中国科学G辑（英文版）
• 年，卷（期）: 2008,（4）
• 页码范围: 372-378
• 页数: 7页
• 语种: 英文
• DOI: 10.1007/s11433-008-0049-y

摘要

Ti42.5Zr7.5Cu40Ni5Sn5 bulk metallic glass with a critical diameter of 4 mm was fabri-cated by the conventional copper mould casting method. The supercooled liquid region △Tx, reduced glass transition temperature Trg, y parameter, and σ parameter of the alloy were measured to be 63.9 K, 0.561, 0.393, and 1.400, respectively, im-plying that the alloy has an excellent glass-forming ability. The bulk metallic glass exhibits high compressive fracture strength of 2162 MPa with distinct plastic strain of 0.9%. The fracture surface consists mainly of vein-like patterns, typical of bulk glassy alloys.