Effect of phosphorous on the reliability of the protective oxide layer on platinum aluminide coated CMSX-4
作者： J. S. Jung , D. S. McPhail , B. A. Shollock
DOI: 10.1007/S12206-012-0508-2
关键词:
摘要: The effect of phosphorous on the integrity thermally grown aluminium oxide layer formed a platinum-aluminide coated single-crystal nickel-base superalloy (CMSX-4) was studied through oxidation tests for varying exposure times followed by analysis using scanning electron microscopy and microanalysis. samples were oxidized up to 72 hours in pure oxygen (0.2 atm) at 1150°C. Oxide spallation shown surface even after short (24 hour). fraction increased with time. Analysis revealed that associated spalled areas all conditions is proposed contribute failure weakening oxide/coating interface. A strong correlation observed between chromium, as chromium detected phosphorous-rich areas.
springer.com
core.ac.uk
warwick.ac.uk
j-mst.org 参考文章(18)
A. V. Nikolaeva, Yu. A. Nikolaev, Yu. R. Kevorkyan, Grain-boundary segregation of phosphorus in low-alloy steel Atomic Energy. ,vol. 91, pp. 534- 542 ,(2001) , 10.1023/A:1012482419952
L. Rivoaland, V. Maurice, P. Josso, M.-P. Bacos, P. Marcus, The effect of sulfur segregation on the adherence of the thermally-grown oxide on NiAl-II: The oxidation behavior at 900°C of standard, desulfurized or sulfur-doped NiAl(001) single-crystals Oxidation of Metals. ,vol. 60, pp. 159- 178 ,(2003) , 10.1023/A:1024625615544
S. J. Hemsley, W. Zhou, Platinum plating for turbine blades: technology development and process improvement Transactions of The Institute of Metal Finishing. ,vol. 88, pp. 11- 16 ,(2010) , 10.1179/174591909X12614816487692
C.J. McMahon, Jr., Brittle Fracture of Grain Boundaries Interface Science. ,vol. 12, pp. 141- 146 ,(2004) , 10.1023/B:INTS.0000028644.07075.4E
R. Molins, C. Guerre, L. Rémy, Study by EDX spectral cartography of the oxidation of a thermal barrier coating Revue De Metallurgie-cahiers D Informations Techniques. ,vol. 100, pp. 507- 512 ,(2003) , 10.1051/METAL:2003220
Régine Molins, Isabelle Rouzou, Luc Rémy, Kristell Le Biavant-Guerrier, François Jomard, Study of sulfur distribution in a NiPtAl bondcoat Materials at High Temperatures. ,vol. 22, pp. 359- 366 ,(2005) , 10.1179/MHT.2005.042
P.Y. Hou, V.K. Tolpygo, Examination of the platinum effect on the oxidation behavior of nickel-aluminide coatings Surface & Coatings Technology. ,vol. 202, pp. 623- 627 ,(2007) , 10.1016/J.SURFCOAT.2007.06.013
W. Y. Lee, I. G. Wright, B. A. Pint, Y. Zhang, P. K. Liaw, Effects of sulfur impurity on the scale adhesion behavior of a desulfurized Ni-based superalloy aluminized by chemical vapor deposition Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science. ,vol. 29, pp. 833- 841 ,(1998) , 10.1007/S11661-998-0274-Z
P. Y. Hou, Segregation behavior at TGO/bondcoat interfaces Journal of Materials Science. ,vol. 44, pp. 1711- 1725 ,(2009) , 10.1007/S10853-008-2969-3