Fatigue crack propagation at elevated temperatures in titanium aluminide intermetallic

1999 ◽  
Vol 268 (1-2) ◽  
pp. 63-69 ◽  
Author(s):  
Keiro Tokaji ◽  
Hirohisa Shiota ◽  
Masashi Nemura
Keyword(s):  
Fatigue Crack ◽  
Crack Propagation ◽  
Fatigue Crack Propagation ◽  
Titanium Aluminide ◽  
Elevated Temperatures

The Development of Fatigue Crack Propagation Models for Engineering Applications at Elevated Temperatures

1975 ◽  
Vol 97 (4) ◽  
pp. 289-297 ◽  
Author(s):  
B. Tomkins
Keyword(s):  
Fatigue Crack ◽  
Crack Propagation ◽  
Fatigue Crack Propagation ◽  
Elevated Temperatures ◽  
Failure Process ◽  
Propagation Models ◽  
Creep Fatigue ◽  
Creep Cavitation ◽  
Crack Propagation Process

The value of modelling the fatigue crack propagation process is discussed and current models are examined in the light of increasing knowledge of crack tip deformation. Elevated temperature fatigue is examined in detail as an area in which models could contribute significantly to engineering design. A model is developed which examines the role of time-dependent creep cavitation on the failure process in an interactive creep-fatigue situation.

scholarly journals Effect of microstructure on fatigue crack propagation in a titanium-aluminide alloy under thermomechanical fatigue conditions - Current activities in the subcommittee of Titanium-Aluminide alloys in the Society of Materials Science, Japan (JSMS) -

2020 ◽  
Vol 321 ◽  
pp. 11055
Author(s):  
Yasuhiro Yamazaki ◽  
Ryota Sugaya ◽  
Fumio Tooyama
Keyword(s):  
Fatigue Crack ◽  
High Temperature ◽  
Crack Propagation ◽  
Fatigue Crack Propagation ◽  
Titanium Aluminide ◽  
Collaborative Research ◽  
High Temperature Strength ◽  
Tial Alloys ◽  
Titanium Aluminide Alloys ◽  
Effect Of Microstructure

Titanium aluminide (TiAl) alloys have attracted to considerable interest as a material of blade in the low-pressure turbine section of aero engines since their superior specific strength. The mechanical properties and strengths of TiAl alloys are strongly sensitive to their microstructure controlled with thermo-mechanical processing. The collaborative research has been started from 2017 by the subcommittee on Titanium-Aluminide alloys, JSMS Committee on High Temperature Strength of Materials, in order to get basic information about the influence of microstructure on the high-temperature strength. This paper is a part of the collaborative research. The crack propagation tests were carried out under the load controlled out-of-phase type TMF (OP-TMF) loading condition with temperature range 400 ℃ -760 ℃ . The effect of microstructure on fatigue crack propagation behavior in was discussed.

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