Skip to main content Accessibility help
×
Home
Hostname: page-component-544b6db54f-8tjh8 Total loading time: 0.23 Render date: 2021-10-18T21:38:30.128Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": true, "newCiteModal": false, "newCitedByModal": true, "newEcommerce": true, "newUsageEvents": true }

Microstructural Effect on Environmental Embrittlement of Isothermally Forged TiAl-Based Intermetallic Alloys

Published online by Cambridge University Press:  11 February 2011

T. Takasugi
Affiliation:
Department of Metallurgy and Materials Science, Graduate School of Engineering, Osaka Prefecture University, 1–1 Gakuen-cho, Sakai, Osaka 599–8531, Japan
T. Tsuyumu
Affiliation:
Department of Metallurgy and Materials Science, Graduate School of Engineering, Osaka Prefecture University, 1–1 Gakuen-cho, Sakai, Osaka 599–8531, Japan
Y. Kaneno
Affiliation:
Department of Metallurgy and Materials Science, Graduate School of Engineering, Osaka Prefecture University, 1–1 Gakuen-cho, Sakai, Osaka 599–8531, Japan
H. Inoue
Affiliation:
Department of Metallurgy and Materials Science, Graduate School of Engineering, Osaka Prefecture University, 1–1 Gakuen-cho, Sakai, Osaka 599–8531, Japan
Get access

Abstract

The TiAl-based (Ti-46Al-7Nb-1.5Cr (at%)) intermetallic alloy was tensile tested in vacuum and air as a function of temperature to investigate microstructural effect on the moisture-induced embrittlement. The reduction in tensile strength (or elongation) due to testing in air diminishes as testing temperature increases. From the fracture strength (or elongation)-temperature curves, it was found that the near gamma grain microstructure was most resistant, and the dual-phase microstructure most susceptible to moisture-induced embrittlement. Also, the moisture-induced embrittlement of the TiAl-based intermetallic alloy with fully lamellar microstructure depends on the lamellar spacing, and reduced with decreasing lamellar spacing.

Type
Research Article
Copyright
Copyright © Materials Research Society 2003

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. Matejczyk, D. E. and Rhode, C. G., Scripta Metall., 24, 1369 (1990).CrossRefGoogle Scholar
2. Chu, W. Y. and Thompson, A. W., Scripta Metall., 25, 2133 (1991).CrossRefGoogle Scholar
3. Chan, K. S. and Kim, Y. –W, Metall. Trans. A, 23, 1663 (1992).CrossRefGoogle Scholar
4. Chu, W. Y. and Thompson, A. W., Metall. Trans. A, 23, 1299 (1992).CrossRefGoogle Scholar
5. Gao, K. W., Chu, W. Y., Wang, Y. B. and Hsiao, C. M., Scripta Metall., 27, 555 (1992).CrossRefGoogle Scholar
6. Takasugi, T., Critical Issues in the Development of High Temperature Structural Materials, Stoloff, N., Duquette, D. J. and Giamei, A. F., eds., TMS, Warrendale, PA, 1993, pp. 399414.Google Scholar
7. Liu, C. T., 6th Int. Symp. Intermetallic Compounds - Structure and Mechanical Properties, Izumi, O., ed., JIM, 1991, p. 703712.Google Scholar
8. Liu, C. T. and George, E. P., International Symposium on Nickel and Iron Aluminide; Processing, Properties, and Applications, Deevi, C., Sikka, V. K., Maziasz, P. J. and Cahn, R. W., eds., ASM, 1997, p. 2132.Google Scholar
9. Takasugi, T. and Hanada, S., J. Mater. Research, 17, 2739 (1992).CrossRefGoogle Scholar
10. Liu, C. T. and Kim, Y. –W., Scripta Metall., 27, 599 (1992).CrossRefGoogle Scholar
11. Nakamura, M., Hashimoto, K., Tsujimoto, T. and Suzuki, T., J. Mater. Res, 8, 68 (1993).CrossRefGoogle Scholar
12. Nakamura, M., Itoh, N., Hashimoto, K., Tsujimoto, T. and Suzuki, T., Metall. Trans. A, 25, 321 (1994).CrossRefGoogle Scholar
13. Minoshima, K., Obara, K., Minamino, N. and Komai, K., Fatigue Fract. Engng. Mater. Struct., 24, 803 (2001).CrossRefGoogle Scholar
14. Inui, H., Oh, M. H., Nakamura, A. and Yamaguchi, M., Acta Metall., 40, 3095 (1992).CrossRefGoogle Scholar
15. Oh, M. H., Inui, H., Misaki, M. and Yamaguchi, M., Acta Metall., 41, 1939 (1993).CrossRefGoogle Scholar
16. Takasugi, T., Tsuyumu, T., Kaneno, Y. and Inoue, H., J. of Materials Research, 15, 1881 (2000).CrossRefGoogle Scholar
17. Kaneno, Y., Wada, M., Inoue, H. and Takasugi, T., Materials Transaction, 42, 418 (2001)CrossRefGoogle Scholar

Send article to Kindle

To send this article to your Kindle, first ensure no-reply@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 sending to your Kindle. Find out more about sending to your Kindle.

Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent 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.

Microstructural Effect on Environmental Embrittlement of Isothermally Forged TiAl-Based Intermetallic Alloys
Available formats
×

Send article to Dropbox

To send 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 use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

Microstructural Effect on Environmental Embrittlement of Isothermally Forged TiAl-Based Intermetallic Alloys
Available formats
×

Send article to Google Drive

To send 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 use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

Microstructural Effect on Environmental Embrittlement of Isothermally Forged TiAl-Based Intermetallic 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? *