Fractographic study of fatigue crack growth processes in a fully lamellar γ-tiAl alloy

1995 ◽  
Vol 32 (10) ◽  
pp. 1653-1658 ◽  
Author(s):  
S.J. Balsone ◽  
B.D. Worth ◽  
J.M. Larsen ◽  
J.W. Jones
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Tial Alloy ◽  
Growth Processes ◽  
Fractographic Study ◽  
Fully Lamellar

Fatigue crack growth behavior of wrought γ-based TiAl alloy containing β-phase

2018 ◽  
Vol 100 ◽  
pp. 77-87 ◽  
Author(s):  
Loris Jonathan Signori ◽  
Taiki Nakamura ◽  
Yotaro Okada ◽  
Ryosuke Yamagata ◽  
Hirotoyo Nakashima ◽  
...  
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Tial Alloy ◽  
Growth Behavior ◽  
Crack Growth Behavior ◽  
Fatigue Crack Growth Behavior ◽  
Β Phase

scholarly journals Identification of Relationships between Heat Treatment and Fatigue Crack Growth of αβ Titanium Alloys

Metals ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 512 ◽  
Author(s):  
Vincent Renon ◽  
Gilbert Henaff ◽  
Céline Larignon ◽  
Simon Perusin ◽  
Patrick Villechaise
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Titanium Alloys ◽  
Crack Growth ◽  
High Performance ◽  
Shielding Effect ◽  
Characteristic Parameters ◽  
Fatigue Crack Growth Resistance ◽  
Fully Lamellar ◽  
Crack Growth Rates

This study deals with the influence of microstructure on the fatigue crack growth resistance of αβ titanium alloys: Ti-6Al-4V ELI (Extra Low Interstitial) that may compete with the conventional Ti-6Al-4V alloy in the manufacture of high performance aircraft. Six different microstructures have been considered: the as-received bimodal microstructures and five distinct fully lamellar microstructures. The characteristic parameters of these microstructures were determined and crack growth tests were performed with crack closure measurements in order to evaluate the shielding effect induced by closure. A comparison of crack growth rates, fracture surfaces, and crack path was carried out for the different microstructures. The results outline a transition between two propagation regimes from a microstructure-sensitive to microstructure-insensitive propagation.

Effects of microstructural parameters on the fatigue crack growth of fully lamellar γ-TiAl alloys

2002 ◽  
Vol 329-331 ◽  
pp. 545-556 ◽  
Author(s):  
Cheol Choi ◽  
Hyun Jin Kim ◽  
Yong-Tai Lee ◽  
Young-Won Kim ◽  
Chong Soo Lee
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Tial Alloys ◽  
Microstructural Parameters ◽  
Fully Lamellar

Effects of microstructure and temperature on fatigue crack growth in the TiAl alloy Ti-46.5Al-3Nb-2Cr-0.2W

1995 ◽  
Vol 192-193 ◽  
pp. 457-464 ◽  
Author(s):  
Stephen J. Balsone ◽  
James M. Larsen ◽  
David C. Maxwell ◽  
J. Wayne Jones
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Tial Alloy

scholarly journals Fractographic study on fatigue crack growth acceleration due to variable amplitude overloading.

1985 ◽  
Vol 34 (381) ◽  
pp. 676-680
Author(s):  
Hideo KOBAYASHI ◽  
Haruo NAKAMURA ◽  
Toyohiko OHSATO ◽  
Hajime NAKAZAWA
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Variable Amplitude ◽  
Fractographic Study

Fatigue Crack Growth in a TiAl Alloy with Lamellar Microstructure

1992 ◽  
Vol 273 ◽  
Author(s):  
David L. Davidson
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Titanium Alloys ◽  
Crack Growth ◽  
Growth Rates ◽  
Tial Alloy ◽  
Lamellar Microstructure ◽  
Crack Advance ◽  
Crack Growth Rates ◽  
Loading Axis

ABSTRACTThe mechanisms of fatigue crack advance are examined for a lamellar α2 + γ alloy. Crack growth rates are highly dependent on the orientation of the loading axis to the lamellae direction. Thus, the material has some of the characteristics of a composite. For crack growth perpendicular to the lamellae, the mechanisms of crack advance are similar to those of other titanium alloys, while crack growth parallel to lamellae has other characteristics.

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