Skip to main content Accessibility help
×
Home
Hostname: page-component-55597f9d44-54jdg Total loading time: 0.285 Render date: 2022-08-16T11:23:52.090Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "useRatesEcommerce": false, "useNewApi": true } hasContentIssue true

Experimental Studies and Thermodynamic Simulation of Phase Transformations in γ-TiAl Based Alloys

Published online by Cambridge University Press:  26 February 2011

Harald F. Chladil
Affiliation:
Dept. of Physical Metallurgy and Materials Testing, Montanuniversitaet, A-8700 Leoben, Austria
Helmut Clemens
Affiliation:
Dept. of Physical Metallurgy and Materials Testing, Montanuniversitaet, A-8700 Leoben, Austria
Harald Leitner
Affiliation:
Dept. of Physical Metallurgy and Materials Testing, Montanuniversitaet, A-8700 Leoben, Austria
Arno Bartels
Affiliation:
Materials Science and Technology, TU-Hamburg-Harburg, D-21071 Hamburg, Germany
Rainer Gerling
Affiliation:
Institute for Materials Research, GKSS-Research Centre, D-21502 Geesthacht, Germany
Wilfried T. Marketz
Affiliation:
Boehler-Schmiedetechnik GmbH&CoKG, A-8605 Kapfenberg, Austria
Ernst Kozeschnik
Affiliation:
Institute for Materials Science, Welding and Forming, Graz University of Technology, A-8010 Graz, Austria
Get access

Abstract

Phase transformations and phase transition temperatures in several Nb-rich γ-TiAl based alloys were investigated experimentally and compared to thermodynamic simulations. The present study combines light-optical and scanning electron microscopy, X-ray diffraction and differential-scanning-calorimetry for the characterization of the prevailing phases and phase transformations. Thermodynamic simulation based on the CALPHAD method was used for predict phase stabilities. The results from experiments on a variety of γ-TiAl based alloys are compared to thermodynamic calculations. Finally, the influence of carbon on the transition temperatures is presented.

Type
Research Article
Copyright
Copyright © Materials Research Society 2005

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

[1] Appel, F. and Oehring, M., Titanium and Titanium Alloys, ed. Peters, M. and Leyens, C. (Wiley-Vch, Weinheim), pp. 89152 Google Scholar
[2] Kestler, H. and Clemens, H., Titanium and Titanium Alloys, ed. Peters, M. and Leyens, C. (Wiley-Vch, Weinheim), pp. 351392 Google Scholar
[3] Appel, F., Oehring, M. and Wagner, R., Intermetallics 8, 1283 (2000)CrossRefGoogle Scholar
[4] Haanappel, V. A. C., Clemens, H. and Stroosnijder, M. F., Intermetallics 10, 293 (2002)CrossRefGoogle Scholar
[5] Gerling, R., Clemens, H. and Schimansky, F.P., Advanced Engineering Materials 6, 23 (2004)CrossRefGoogle Scholar
[6] Sundman, B., Jansson, B. and Andersson, J.-O., CALPHAD 9, 153 (1985)CrossRefGoogle Scholar
[7] Kozeschnik, E. and Buchmayr, B., Mathematical Modelling of Weld Phenomena 5, eds. Cerjak, H. and Bhadeshia, H.K.D.H. (IOM Communications, London, book 738, 2001), p. 349.Google Scholar
[8] Saunders, N., Gamma Titanium Aluminides 1999, ed. Kim, Y-W., Dimiduk, D.M. and Loretto, M.H. (Minerals, TMS, Warrendale, PA, 1999), p. 183 Google Scholar
[9] Ansara, I., Int. Met. Reviews 22, 20 (1979)Google Scholar
[10] Saunders, N. and Miodownik, A.P., CALPHAD-A Comprehensive Guide (New York: Elsevier Science, 1998)Google Scholar
[11] Beschliesser, M., Clemens, H., Kestler, H. and Jeglitsch, F., Scripta Materialia 49, 279 (2003)CrossRefGoogle Scholar
[12] Malinov, S., Novoselova, T. and Sha, W., Mat. Science and Engineering A 386, 344 (2004)CrossRefGoogle Scholar
[13] Brossmann, U., Oehring, M. and Appel, F., Structural Intermetallics 2001m ed. Hemker, K.J., Dimiduk, D.M., Clemens, H., Darolia, R., Inui, H., Larsen, J.M., Sikka, V.K, Thomas, M., Whittenberger, J.D. (TMS, Warrendale, PA, 2001), p. 191 Google Scholar
[14] Cagran, C., Wilthan, B., Pottlacher, G., Roebuck, B, Wickins, M., Harding, R.A., Intermetallics 11, 1327 (2003)CrossRefGoogle Scholar
[15] Chen, G.L., Zhang, W.J., Liu, Z.C., Li, S.J. and Kim, Y.W., Titanium Aluminides 1999, ed Kim, Y-W., Dimiduk, D.M. and Loretto, M.H. (TMS, Warrendale, PA, 1999), p. 371 Google Scholar
[16] Okamoto, H., Journal of Phase Equilibria 14, 120 (1993)CrossRefGoogle Scholar

Save article to Kindle

To save this article to your Kindle, first ensure coreplatform@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.

Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Experimental Studies and Thermodynamic Simulation of Phase Transformations in γ-TiAl Based Alloys
Available formats
×

Save article to Dropbox

To save this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you used this feature, you will be asked to authorise Cambridge Core to connect with your Dropbox account. Find out more about saving content to Dropbox.

Experimental Studies and Thermodynamic Simulation of Phase Transformations in γ-TiAl Based Alloys
Available formats
×

Save article to Google Drive

To save this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you used this feature, you will be asked to authorise Cambridge Core to connect with your Google Drive account. Find out more about saving content to Google Drive.

Experimental Studies and Thermodynamic Simulation of Phase Transformations in γ-TiAl Based Alloys
Available formats
×
×

Reply to: Submit a response

Please enter your response.

Your details

Please enter a valid email address.

Conflicting interests

Do you have any conflicting interests? *