Study on FGH95 Superalloy Prepared by Spray Forming

Article Preview

Abstract:

FGH95 superalloy cylindrical billet was prepared by spray forming, The yield is 73.6%, porosity is 0.6%, the oxygen content is only 20ppm. Spray forming preparation method and technological parameter were illustrated. The microstructure on the different positions of billet were observed. The results show that the difference of γ′ phase size, feature and distribution depend on different cooling velocity and local temperature difference during the spray forming process. SEM of nonmetallic inclusions were observed, and XPS of nonmetallic inclusions, nozzle and adhesive were analysed, the results show that the nonmetallic inclusions were from nozzle and adhesive.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

434-438

Citation:

Online since:

September 2011

Authors:

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2011 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] E.D. Manson-Whitton, I.C. Stone, J.R. Jones, P.S. Grant, B. Cantor, Isothermal grain coarsening of spray formed alloys in the semi-solid state[J]. Acta Materialia, Volume 50, Issue 10, 12 June 2002, Pages 2517-2535

DOI: 10.1016/s1359-6454(02)00080-0

Google Scholar

[2] I. Schruff, V. Sch¨uler, C. Spiegelhauer, in: J. Bergstr¨om, G. Frederiksson, M. Johannsson, O. Kotik, E. Thurvander (Eds.), The Use of Tool Steels:Experience and Research, Karlstad University, Karlstad, Sweden, 2002, p.973–990.

Google Scholar

[3] R. Schneider, A. Schulz, C. Bertrand, A. Kulmburg, A. Oldewurtel, V. Uhlenwinkel, D. Viale, in: J. Bergstr¨om, G. Frederiksson, M. Johannsson,O. Kotik, E. Thurvander (Eds.), The Use of Tool Steels: Experience and Research, Karlstad University, Karlstad, Sweden, 2002, p.931–942.

Google Scholar

[4] C.S. Cui, A. Schulz, U. Fritsching, K. Bauckhage, P. Mayr. Spray formed bearing steel insensitive to distortion[J]. Journal of Materials Science, 2005, Volume 40, Number 7, 1673-1680

DOI: 10.1007/s10853-005-0668-x

Google Scholar

[5] C.S. Cui, U. Fritsching, A. Schulz, Met. Mater.Trans.B38 (2007) 333–346.

Google Scholar

[6] H. Zhang, Y. Luo, G.Wang, in: J. Bergstr¨om, G. Frederiksson, M. Johannsson, O. Kotik, E. Thurvander (Eds.), The Use of Tool Steels: Experience and Research, Karlstad University, Karlstad, Sweden, 2002, p.915–921.

Google Scholar

[7] Rafael Agnelli Mesquita, Celso Antonio Barbosa. Spray forming high speed steel—properties and processing[J]. Materials Science and Engineering A 383 (2004) 87–95.

DOI: 10.1016/j.msea.2004.02.035

Google Scholar

[8] Mao Jian, Chang Ke-min, Yang Wan-hong, et al. Cooling precipitation and strengthening study in powder metallurgy superalloy Rene88DT[J]. Matearials Science and Engineering A, 2002,332:318-329

DOI: 10.1016/s0921-5093(01)01758-0

Google Scholar