Acta Metall Sin  1998, Vol. 34 Issue (11): 1217-1222    DOI:

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EFFECTS OF Ti ON STRENGTHENING OF ODS FERRITIC ALLOY FOR ADVANCED FBR CLADDING APPLICATION

TIAN Yun;PAN Qingchun;LIU Guangzu;SHAN Bingquan;YANG Fenglan (Central Iron and Steel Research Institute; Beijing 100081)

TIAN Yun;PAN Qingchun;LIU Guangzu;SHAN Bingquan;YANG Fenglan (Central Iron and Steel Research Institute; Beijing 100081). EFFECTS OF Ti ON STRENGTHENING OF ODS FERRITIC ALLOY FOR ADVANCED FBR CLADDING APPLICATION. Acta Metall Sin, 1998, 34(11): 1217-1222.

Abstract References Related Articles Recommended Metrics Download:  PDF(2069KB)  Export:  BibTeX | EndNote (RIS)       Abstract  When an optimum machanical alloying(MA) process was selected, the dispersoids (Y2O3) added in the ferritic alloy will initially dissolve into a matrix during MA, then a kind of super fine complex oxide(Y2Ti2O7) will precipitate during following hot consolidation process By this transition, the dispersoids can be obviously refined from 30 um (Y2O3) to smaller than 10 nm (Y2Ti2O7) and even more uniformly distributed in alloy matrix. It can remarkably enhance the effect of dispersion strengthening and enable the alloy's strength, especially creep strength,to reach a superior high level enough to satisfy the specification of commercial type FBR. But when a high content of Ti (>2%) is added in the alloy, X phase can easily precipitate in the alloy's matrix during aging the alloy at 800℃ for 24 h, which can not contribute to 650℃ tensile strength, and is very harmful to tensile ductility and creep strength of the alloy. Key words:  ODS ferritic alloy      mechanical alloying(MA)      Ti containing dispersoid      Received:  18 November 1998      Service E-mail this article Add to citation manager E-mail Alert RSS Collect articles（0） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1998/V34/I11/1217 1 OKuda T,Nomura S,Nakanishi M,Fujiwara M,Takahas H Proc The 1st Japan Inter SAMPE SympAnd Exhib.Sociaty for the Advancement of Matierial and Process Engineering;Japan, 1989:1616 2 Shan B Q, Tian Y, Liu G Z, Pan Q C, Sun J G, Zhao Z Y J Irc。 Steel Res, 1994; 6: 71 3 Ukai S,Harada M,Okada H,Inoue M,Nomura S,Shikakura S,Asabe K,Nishida T,Fujiwara M J Nucl Mater,1993; 204:69 4 Huet J J. Sintered Metal-Ceramic Composites.Amsterdam:Elsevier Science Pablishers,1984:197 5 Tian Y,Shan B Q,Pan Q C,Sun J G,IN:Deng X W,Qian S J,Huang J H,Jin Z J eds ,Proc The 3rdsino-Japanese Symp On Mater .Sociaty for Advanced Energy Systems&Fisson and Fusion Engineering,chengdu:Southwestern Institute of Physics;1995:110 6 Evans R W,Preston J,Wilshire B, Little E A.J Nucl Mater, 1992; 195: 24 7 Okuda T,Fujiwara M.J Mater Sci Lett,1995;14:1600% No related articles found! No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed