I am manufacturing Ti6Al4V by SLS (AM) and I am interested in fatigue performance of same component pertaining to aerospace applications. Therefore, Could any one of you tell me that whether Low Cycle Fatigue (LCF) applications are there in aerospace engineering?
Yes, the low cycle fatigue applications are there in aerospace engineering, you may wish to contact some researchers/Faculty members at University of Manchester of Embry Riddle Aeronautical University for further necessary actions.
Dear Amit
The Ti6Al4V is considered a super plastic alloy. The main application of the alloy in aerospace is to manufacture the turbine plates for the aerospace engine. I assume the alloy has good performance under low cycle-high stress fatigue phenomenon.
Refer to the following article on " Application and Features of Titanium for the Aerospace Industry"
file:///C:/Users/hp/AppData/Local/Microsoft/Windows/INetCache/IE/R3JW8QTQ/106-05%20(1).pdf
Ti6Al4V is a well-known grade 5 Titanium alloy amongst all the titanium alloys used in aerospace industry (60% of all Ti-alloys). It is used in many applications such as aircraft gas turbine engine disks, engine components, aircraft structural components, aerospace fasteners and High-performance automatic parts.
It is used for high-moderate temperature applications to withstand high fatigue cycle and corrosion. Structural components are subjected to low fatigue cycle compared with other applications.
However, the fatigue strength is extremely sensitive to prior thermomechanical processing as it influences microstructure and phase transformations.
Please refer to the following for effect of processing on fatigue life.
R.J.Morrissey, D.L.McDowell, T.Nicholas, “Frequency and stress ratio effects in high
cycle fatigue of Ti-6Al-4V”, International of Fatigue, 21,1999, 679-685.
J.J.Lucas, P.P. Konieczny, “Relation between Alpha Grain Size and Crack Initiation on Fatigue Strength in Ti-6Al-4V”, Metal Trans., 1971, 2 (March).
O. M. Herasymchuk, O. V Kononuchenko, and V. I. Bondarchuk, “Fatigue life calculation for titanium alloys considering the influence of microstructure and manufacturing defects,” Int. J. Fatigue, vol. 81, pp. 257–264, Dec. 2015.
- Badges
- Science topic
- Similar topics
- Engineering
- Mechanical Engineering