Keyword: Nb-si Based Alloys : Search

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EFFECT OF VACUUM INDUCTION MELTING TECHNOLOGY ON MECHANICAL PROPERTIES OF Nb-16Si-22Ti-2Al-2Hf-17Cr ALLOY
- XIAOJIAN LI,
- HU ZHANG, and
- JIANGBO SHA
International Journal of Modern Physics B30 Jun 2010
Preview Abstract
This paper dealt with the effect of different induction melting technologies on mechanical properties of Nb-16Si-22Ti-2Al-2Hf-17Cr alloy. The cast ingots were fabricated first by arc-melting, and then remolten in the vacuum induction furnace. The results showed that the ingot with refining process of 1800°C/15min and 0.1 at% C addition had finer microstructure and higher room-temperature fracture toughness. In addition, the compressive strength of the ingot with refining technology of 1700°C/10min was 315MPa at 1250°C. However, the arc melting ingot had the lowest fracture toughness and high-temperature compressive strength.

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