Minor alloying behavior in bulk metallic glasses and high-entropy alloys

• 来源期刊: 中国科学G辑（英文版）
• 年，卷（期）: 2008,（4）
• 页码范围: 427-437
• 页数: 11页
• 语种: 英文
• DOI: 10.1007/s11433-008-0050-5

摘要

The effect of minor alloying on several bulk metallic glasses and high-entropy al-loys was studied. It was found that minor Nb addition can optimize the interface structure between the W fiber and the Zr-based bulk metallic glass in the compos-ites, and improve the mechanical properties. Minor Y addition can destabilize the crystalline phases by inducing lattice distortion as a result to improve the glass-forming ability, and the lattice distortion energy is closely related to the effi-ciency of space filling of the competing crystalline phases. A long-period ordered structure can precipitate in the Mg-based bulk metallic glass by yttrium alloying. For the high-entropy alloys, solid solution can be formed by alloying, and its me-chanical properties can be comparable to most of the bulk metallic glasses.