Undercooling and rapid solidification of Nb-Si eutectic alloys studied by long drop tube

• Published in: Transactions of Nonferrous Metals Society of China Vol. 16; no. A02; pp. 89 - 92
• Main Author: 王育人 董树勇 魏炳忱 李维火
• Format: Journal Article
• Language: English
• Published: National Microgravity Laboratory, Institute of Mechanics,Chinese Academy of Sciences, Beijing 100080, China 01.09.2006
• Subjects: Nb-Si共晶合金; 冷却过度; 快速凝固; 金属间化合物; 长滴管; intermetallics; rapid solidification; Nd-Si eutectic alloys; long drop tube; undercooling

Niobium-silicide alloys have great potential for high temperature turbine applications. The two-phase Nb/Nb5Si3 in situ composites exhibit a good balance in mechanical properties. Using the 52 m drop tube, the effect of undercooling and rapid solidification on the solidification process and micro-st...