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논문 기본 정보

자료유형
학술저널
저자정보
Nuo Li (Hebei University of Technology) Chunxiang Cui (Hebei University of Technology) Shaungjin Liu (Hebei University of Technology) Long Zhao (Hebei University of Technology) Shuiqing Liu (Hebei University of Technology)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.23 No.2
발행연도
2017.1
수록면
397 - 404 (8page)

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The in situ Ti5Si3/Ti inoculants were successfully prepared by vacuum arc-melting and melt-spinning method. An efficient route by adding a small quantity of Ti5Si3/Ti inoculants to Ti melt has been first proposed tomodify the coarse grains of as cast microstructure of pure titanium in this paper. It was found that themicrostructure of ribbon inoculants was cellular structure that composed of Ti5Si3 and α-Ti phases. Thegrain refining effect of the inoculants was significantly improved with the adding ratio range from 0.2% to0.5% in weight. With the increase of addition amount of inoculants on Ti melt, the tensile strength, yieldstrength and microhardness of pure titanium are significantly improved except elongation. The excellentgrain refining effect can be attributed to the heterogeneous nucleation of the titanium grain on the precipitatedTi5Si3 phases in the Si-rich regions and the constitutional supercooling of Si in the Si-poverty regions. It issuggested that the in situ Ti5Si3/Ti inoculants is a promising inoculants for titanium alloys.

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