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Micro- /Nano-Crystal Aluminized ODS Coatings

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Abstract:

A novel technique has been developed to prepare micro-/nano-crystal aluminized ODS coatings on stainless steel and nickel-base superalloy. In this technique, the pack aluminizing is combined with the repeated ball impact. Pure Al powder is mixed with 1wt% Y2O3 powder by ball milling. The ultrafine Y2O3 powder is well dispersed in Al particles. The modified Al particles are welded to the surface of metals by ball impact, causing the refinement of coarse grains and acceleration of atomic diffusion. Micro-/nano-crystal alloy layer with Y2O3 grows outward at a much low temperature (below 600°C) and in short treatment duration, compared with conventional pack aluminizing. The effects of processing temperature and duration on formation of the coatings have been analyzed. The microstructure of the coatings is studied using the methods of SEM, AMF, EDS, XRF and XRD. The results indicate that the aluminized ODS coatings appear to be dense, homogeneous, micro-/nano-crystal structure, and consist mainly of Al-rich phases, such as Fe2Al5, FeAl3 NiAl3 and7 CrAl5. High temperature oxidation tests show that the coatings enhance the oxidation resistance.

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Periodical:

Materials Science Forum (Volumes 522-523)

Pages:

323-330

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.522-523.323

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Online since:

August 2006

Authors:

Zhao Lin Zhan, Ye Dong He, De Ren Wang, Wei Gao

Keywords:

Aluminized ODS Coatings, High Temperature Oxidation, Micro-Crystal, Nanocrystal

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] H. Hindam and D.P. Whittle: Oxid. Met. Vol. 18 (1982), p.245.

Google Scholar

[2] J. Stringer, B. A. Wilcox and R. I. Jaffee: Oxid. Met. Vol. 5 (1972), p.11.

Google Scholar

[3] Hiroshi Nagai: Trans. Jim Vol. 24 (1983), p.839.

Google Scholar

[4] K.L. Luthra and E.L. Hall: Oxid. Met. Vol. 26 (1986), p.385.

Google Scholar

[5] F. Wang, H. Lou, L. Bai and W. Wu: Mater. Sci. Eng. Vol. A121(1989), p.387.

Google Scholar

[6] Y. Longa and M. Takemoto: Oxid. Metals Vol. 41(1994), p.301.

Google Scholar

[7] L.Y. Kuo and P. Shen; Mater. Sci. Eng. Vol. A277 (2000), p.258.

Google Scholar

[8] K.A. Khor and Y.W. Gu: Mater. Sci. Eng. Vol. A277 (2000), p.64.

Google Scholar

[9] M.J. Cristobal, P.N. Gibson and M.F. Stroosnijder: Corros. Sci. Vol. 38(1996), p.805.

Google Scholar

[10] G. Dearnaley, T. Laursen and J.L. Whiteon: Mater. Sci. Eng. Vol. 90(1987), p.191.

Google Scholar

[11] M.J. Bennett, H.E. Bishop, P.R. Chalker and A.T. Tuson: Mater. Sci. Eng. Vol. 90 (1987), p.177.

Google Scholar

[12] C.N. Panagopoulos, P.E. Agathocleous, V.D. Papachristos and A. Michaelides, Surf. Coat. Technol. Vol. 123 (2000), p.62.

Google Scholar

[13] Y. He, H. Qi, X. Bai, D. Wang, Z. Li, C. Xu and W. Gao: High Tem. Mater. Pro. Vol. 19(2002), p.71.

Google Scholar

[14] R. Streiff: J. De Physique Vol. 3(1993), p.17.

Google Scholar

[15] T. Li and X. Ma: ACTA Metallurgica Sinica(in Chinese) Vol. 27(1991), p.25.

Google Scholar

[16] X. Lu, R. Zhu and Y. He: Oxid. Metals Vol. 43(1995), p.353.

Google Scholar

[17] Y. He, Z. huang, H. Qi, D. Wang, Z. Li and W. Gao: Mater. Letters Vol. 45(2000), p.79.

Google Scholar

[18] M.H. Zhen and R.A. Rapp: Oxid. Metals Vol. 49(1998), p.19.

Google Scholar

[19] D.M. Miller, S.C. Kung, S.D. Scarberry and R.A. Rapp: Oxid. Metals Vol. 29(1988), p.239.

Google Scholar

[20] N.V. Bangaru and R.C. Krutenat: J. Vac. Sci. Technol. Vol. B2(1984), p.806.

Google Scholar

[21] G.W. Goward and D.H. Boone: Oxid. Metals Vol. 3(1971), p.475.

Google Scholar

[22] S.R. Levine and R.M. Caves: Electrochem. Soc. Vol. 121(1974), p.1051.

Google Scholar

[23] R. Bianco and R.A. Rapp: Electrochem. Soc. Vol. 140(1993), p.1181.

Google Scholar

[24] Z. L. Zhan, Y. D. He, D. R. Wang and W. Gao: Intermetallics, Vol. 14(2006), p.75.

Google Scholar