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Titolo:
The influence of loading cycle and environment on fatigue crack propagation in Ti6246 alloy
Autore:
Hyun, YT; Lee, YT; Evans, WJ; Lee, CG;
Indirizzi:
Korea Inst Machinery & Mat, Dept Mat Proc, Changwon 641010, South Korea Korea Inst Machinery & Mat Changwon South Korea 641010 1010, South Korea Univ Wales, IRC Mat High Performance Applicat, Swansea SA2 8PP, W Glam, Wales Univ Wales Swansea W Glam Wales SA2 8PP t, Swansea SA2 8PP, W Glam, Wales Changwon Natl Univ, Dept Met & Mat Sci, Changwon 641773, South Korea Changwon Natl Univ Changwon South Korea 641773 ngwon 641773, South Korea
Titolo Testata:
HIGH TEMPERATURE MATERIALS AND PROCESSES
fascicolo: 1, volume: 20, anno: 2001,
pagine: 17 - 23
SICI:
0334-6455(200103)20:1<17:TIOLCA>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Keywords:
fatigue crack growth; potential drop; titanium alloy; environmental effect; loading cycle;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
9
Recensione:
Indirizzi per estratti:
Indirizzo: Hyun, YT Korea Inst Machinery & Mat, Dept Mat Proc, 66 Sangnam Dong, Changwon 641010, South Korea Korea Inst Machinery & Mat 66 Sangnam Dong Changwon South Korea 641010
Citazione:
Y.T. Hyun et al., "The influence of loading cycle and environment on fatigue crack propagation in Ti6246 alloy", HIGH TEMP M, 20(1), 2001, pp. 17-23

Abstract

Fatigue crack growth tests on Ti-6Al-2Sn-4Zr-6Mo(Ti6246) alloy were carried out at 773K with either cyclic and dwell waveforms in air, an intermediate vacuum and high vacuum. Results for the DEN (Double Edge Notch) specimensshowed that the fatigue crack growth rate with the dwell waveform was the highest among the various waveforms presently studied. Particularly at low stress intensity factor range (DeltaK), the fatigue crack growth rate was considerably affected by different waveforms. The difference in fatigue crack growth rates between cyclic and dwell waveforms was, however, reduced at intermediate and high DeltaK regions. The effect of environment on fatigue crack growth rate in Ti6246 alloy was also significant at 773K. The highestresistance to fatigue crack growth was observed in a high vacuum, followedby air and an intermediate vacuum. The highest fatigue crack growth rate was obtained in an intermediate vacuum, but there was only slight variation on the fatigue crack growth rates in between air and an intermediate vacuum.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/04/20 alle ore 06:06:13