Synthesis of Fe–Cr–Mo–C–B–P bulk metallic glasses with high corrosion resistance

✍ Scribed by S.J Pang; T Zhang; K Asami; A Inoue

• Book ID: 104402649
• Publisher: Elsevier Science
• Year: 2002
• Tongue: English
• Weight: 210 KB
• Volume: 50
• Category: Article
• ISSN: 1359-6454
• DOI: 10.1016/s1359-6454(01)00366-4

✦ Synopsis

Bulk metallic glasses with a maximum thickness (t max ) of 1.0-2.7 mm were synthesized in the Fe 43 Cr 16 Mo 16 (C, B, P) 25 system over a wide composition range by copper mold casting. They exhibit a large supercooled liquid region (⌬T x ) of 40-90 K and a high reduced glass transition temperature (T g /T l ) of 0.54-0.60, indicating high glass-forming ability (GFA) and high thermal stability of the supercooled liquid. The critical cooling rate for glass formation was evaluated to be of the order of 10 2 K s Ϫ1 . The bulk metallic glasses exhibited high corrosion resistance in aggressive HCl solutions. The alloying element P has a beneficial effect on corrosion resistance.