英文标题
Effects of micro-alloy elements on fluidity of Ti-45Al-8Nb alloy
英文摘要
Embedded material shell was prepared using wax grid with 8 × 8 mesh.The effects of micro-alloy elements on the fluidity and mold filling property of Ti-45A1-8Nb melt were studied.The results show that the fluidity and mold filling property of Ti-45A1-8Nb melt are improved by Si, Y, Cr, B, Ni addition.However, W and Co show no apparent effectiveness.Mo and V have a negative impact on the fluidity.Procast, the casting simulation software was used to analyze the reasons.Cr and Ni can reduce the melting point and increase the superheat temperature, so, the fluidity of the melt is increased.Si and Y improve the oxidation resistance of alloy and reduce the reaction between melt and shell, therefore, the fluidity of the alloy enhances.B improves the fluidity property attributed to its refinement.
翻译关键词
high Nb-containing TiAl alloy
casting
alloying
fluidity
Procast simulation
