公开(公告)号：US20140202596A1

公开(公告)日：2014-07-24

申请号：US14161434

申请日：2014-01-22

申请人： GLASSIMETAL TECHNOLOGY, INC.

发明人： Jong Hyun NA ,  Michael FLOYD ,  David S. LEE ,  Marios D. DEMETRIOU ,  William L. JOHNSON ,  Glenn GARRETT

IPC分类号： C22F1/00 ,  C22C45/00 ,  C22C45/04 ,  C22C45/08 ,  C22C45/02

CPC分类号： C22C45/08 ,  B22D27/04 ,  B22D46/00 ,  C22C1/002 ,  C22C33/003 ,  C22C45/00 ,  C22C45/001 ,  C22C45/003 ,  C22C45/005 ,  C22C45/02 ,  C22C45/04 ,  C22C45/10

摘要： A method of forming a bulk metallic glass is provided. The method includes overheating the alloy melt to a temperature above a threshold temperature, Ttough, associated with the metallic glass demonstrating substantial improvement in toughness compared to the toughness demonstrated in the absence of overheating the melt above Tliquidus, and another threshold temperature, TGFA, associated with the metallic glass demonstrating substantial improvement in glass-forming ability compared to the glass-forming ability demonstrated in the absence of overheating the melt above Tliquidus. After overheating the alloy melt to above Ttough and TGFA, the melt may be cooled and equilibrated to an intermediate temperature below both Ttough and TGFA but above Tliquidus, and subsequently quenched at a high enough rate to form a bulk metallic glass.

摘要翻译： 提供了一种形成块状金属玻璃的方法。 该方法包括将合金熔体过热到高于阈值温度的温度Ttough，与金属玻璃相关的Ttough显示韧性显着提高，与不存在过热Tijquidus上方的熔体的韧性相比，另一阈值温度，TGFA，相关 与玻璃形成能力相比，金属玻璃显示出与在Tliquidus上方不存在过热的情况下证明的玻璃形成能力相比显着提高。 在将合金熔体过热到Ttough和TGFA之上之后，可以将熔体冷却并平衡至低于Ttough和TGFA但低于Tliquidus之上的中间温度，随后以足够高的速率骤冷以形成块状金属玻璃。