Skip to content
Licensed Unlicensed Requires Authentication Published by De Gruyter June 11, 2013

In-situ studies of the TGO growth stresses and the martensitic transformation in the B2 phase in commercial Pt-modified NiAl and NiCoCrAlY bond coat alloys

  • D. Hovis , L. Hu , A. Reddy , A. H. Heuer , A. P. Paulikas and B. W. Veal

Abstract

Oxide growth stresses were measured in situ at 1100 °C on commercial Pt-modified NiAl and NiCoCrAlY bond coat alloys using synchrotron X-rays. Measurements were taken on samples that had no preoxidation, as well as on samples that had experienced 24 one-hour thermal exposures at 1150 °C, a condition known to induce rumpling in the Pt-modified NiAl alloy, but not in the NiCoCrAlY alloy. The NiCoCrAlY alloy showed continuous stress relaxation under all conditions, whereas the Pt-modified NiAl alloys would typically stabilize at a fixed (often non-zero) stress suggesting a higher creep strength in the “Thermally Grown Oxide” on the latter alloy, though the precise behavior was dependent on initial surface preparation. The formation of martensite in the Pt-modified NiAl alloys was also observed upon cooling and occurred at temperatures below 200 °C for all of the samples observed. Based on existing models, this Ms temperature is too low to account for the rumpling observed in these alloys.


* Correspondence address, Prof. Dr. A. H. Heuer, Case Western Reserve University, Dept. of Materials Science and Engineering, 10900 Euclid Ave. White 418, Cleveland, OH 44106-7204, USA. Tel.: +1 216 368 3868, Fax: +1 216 368 8932, E-mail:

References

[1] A.G.Evans, D.R.Mumm, J.W.Hutchinson, G.H.Meier, F.S.Pettit: Prog. Mater. Sci 46 (2001) 505.10.1016/S0079-6425(00)00020-7Search in Google Scholar

[2] D.R.Mumm, A.G.Evans, I.T.Spitsberg: Acta Mater. 49 (2001) 2329.10.1016/S1359-6454(01)00071-4Search in Google Scholar

[3] V.K.Tolpygo, D.R.Clarke: Acta Mater. 48 (2000) 3283.10.1016/S1359-6454(00)00156-7Search in Google Scholar

[4] R.Panat, S.L.Zhang, K.J.Hsia: Acta Mater. 51 (2003) 239.10.1016/S1359-6454(02)00395-6Search in Google Scholar

[5] V.K.Tolpygo, D.R.Clarke: Acta Mater. 52 (2004) 615.10.1016/j.actamat.2003.10.001Search in Google Scholar

[6] V.K.Tolpygo, D.R.Clarke: Acta Mater. 52 (2004) 5115.Search in Google Scholar

[7] A.W.Davis, A.G.Evans: Metall. Mater. Trans. A 37 (2006) 2085.10.1007/BF02586129Search in Google Scholar

[8] J.K.Wright, R.L.Williamson, D.Renusch, B.W.Veal, M.Grimsditch, P.Y.Hou, R.M.Cannon: Mater. Sci. and Eng. A 262 (1999) 246.10.1016/S0921-5093(98)01020-XSearch in Google Scholar

[9] M.W.Chen, R.Ott, T.C.Hufnagel, P.K.Wright, K.J.Hemker: Surf. Coat. Technol. 163 (2003) 25.10.1016/S0257-8972(02)00591-1Search in Google Scholar

[10] Y.Zhang, J.A.Haynes, B.A.Pint, I.G.Wright, W.Y.Lee: Surf. Coat. Technol. 163 (2003) 19.10.1016/S0257-8972(02)00585-6Search in Google Scholar

[11] M.W.Chen, M.L.Glynn, R.T.Ott, T.C.Hufnagel, K.J.Hemker: Acta Mater. 51 (2003) 4279.10.1016/S1359-6454(03)00255-6Search in Google Scholar

[12] D.J.Sordelet, M.F.Besser, R.T.Ott, B.J.Zimmerman, W.D.Porter, B.Gleeson: Acta Mater. 55 (2007) 2433.10.1016/j.actamat.2006.11.038Search in Google Scholar

[13] D.S.Balint, J.W.Hutchinson: J. Mech. Phys. Solids 53 (2005) 949.10.1016/j.jmps.2004.11.002Search in Google Scholar

[14] A.W.Davis, A.G.Evans: Acta Mater. 53 (2005) 1895.10.1016/j.actamat.2005.01.006Search in Google Scholar

[15] D.S.Balint, T.Xu, J.W.Hutchinson, A.G.Evans: Acta Mater. 54 (2006) 1815.10.1016/j.actamat.2005.12.008Search in Google Scholar

[16] P.Y.Hou, A.P.Paulikas, B.W.Veal: Mater. Sci. Forum 461–464 (2004) 671.Search in Google Scholar

[17] B.W.Veal, A.P.Paulikas, P.Y.Hou: Nature Mat. 5 (2006) 349.10.1038/nmat1626Search in Google Scholar PubMed

[18] P.Y.Hou, A.P.Paulikas, B.W.Veal: Materials at High Temp. 22 (2005) 535.10.3184/096034005782744146Search in Google Scholar

[19] A.H.Heuer, A.Reddy, D.B.Hovis, B.W.Veal, A.P.Paulikas, A.Vlad, M.Rühle: Scripta Mater. 54 (2006) 1907.10.1016/j.scriptamat.2006.02.021Search in Google Scholar

[20] A.Reddy, D.B.Hovis, A.H.Heuer, A.P.Paulikas, B.W.Veal: Oxid. Met. 67 (2007) 153.10.1007/s11085-006-9044-8Search in Google Scholar

[21] J.Wachtman, W.Tefft, D.Lam, R.Stinchfield: J. Res. Nat. Bureau of Standards A 64 (1960) 213.10.6028/jres.064A.022Search in Google Scholar PubMed PubMed Central

[22] T.Goto, O.Anderson, I.Ohno, S.Yamamato: J. Geophys. Res. 94 (1989) 7588.10.1029/JB094iB06p07588Search in Google Scholar

[23] J.R.Gladden, J.H.Su, J.D.Maynard, P.W.Sake, Y.Le Page: Appl. Phys. Lett. 85 (2004) 392.10.1063/1.1773924Search in Google Scholar

[24] D.B.Hovis, A.Reddy, A.H.Heuer: Appl. Phys. Lett. 88 (2006) 131910.10.1063/1.2189071Search in Google Scholar

[25] J.A.Haynes, B.A.Pint, K.L.More, Y.Zhang, I.G.Wright: Oxid. Met. 58 (2002) 513.10.1023/A:1020525123056Search in Google Scholar

[26] J.Cho, C.M.Wang, H.M.Chan, J.M.Rickman, M.P.Harmer: J. Mater. Res. 16 (2001) 425.10.1557/JMR.2001.0064Search in Google Scholar

[27] H.Yoshida, Y.Ikuhara, T.Sakuma: J. Mater. Res. 13 (1998) 2597.10.1557/JMR.1998.0362Search in Google Scholar

[28] F.Wakai, T.Nagano, T.Iga: J. Am. Ceram. Soc. 80 (1997) 2361.10.1111/j.1151-2916.1997.tb03128.xSearch in Google Scholar

[29] L.Xue, I.-W.Chen: J. Am. Ceram. Soc. 73 (1990) 3518.10.1111/j.1151-2916.1990.tb06489.xSearch in Google Scholar

[30] R.M.Cannon, W.H.Rhodes, A.H.Heuer: J. Am. Ceram. Soc. 63 (1980) 46.10.1111/j.1151-2916.1980.tb10648.xSearch in Google Scholar

Received: 2007-7-20
Accepted: 2007-9-3
Published Online: 2013-06-11
Published in Print: 2007-12-01

© 2007, Carl Hanser Verlag, München

Downloaded on 2.2.2023 from https://www.degruyter.com/document/doi/10.3139/146.101586/html
Scroll Up Arrow