Improved Method of Fatigue Life Assessment for TiAl Alloys

For rapid fatigue life assessment of TiAl alloys, the new method was proposed based on qualitative and quantitative analyses. The qualitative analysis was employed to illustrate the microstructure effect for TiAl alloys on their fatigue life. The new formula is derived for estimation of the in...

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Datum:2014
Hauptverfasser: Feng, R.C., Rui, Z.Y., Zhang, G.T., Yan, C.F., Yi, X.B.
Format: Artikel
Sprache:English
Veröffentlicht: Інститут проблем міцності ім. Г.С. Писаренко НАН України 2014
Schriftenreihe:Проблемы прочности
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Online Zugang:https://nasplib.isofts.kiev.ua/handle/123456789/112701
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Zitieren:Improved Method of Fatigue Life Assessment for TiAl Alloys / R.C. Feng, Z.Y. Rui, G.T. Zhang, C.F. Yan, X.B. Yi // Проблемы прочности. — 2014. — № 2. — С. 37-44. — Бібліогр.: 15 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
Beschreibung
Zusammenfassung:For rapid fatigue life assessment of TiAl alloys, the new method was proposed based on qualitative and quantitative analyses. The qualitative analysis was employed to illustrate the microstructure effect for TiAl alloys on their fatigue life. The new formula is derived for estimation of the interaction forces of dislocations, which yields quite satisfactory results. The results of qualitative and quantitative analyses were used to predict the fatigue life improvement by the addition of trace elements producing grain refinement.