Numerical Simulation of Combustion Resistant Titanium Alloy Wear Behavior at High Temperature Fields

Abstract:

The abnormal local friction and wear phenomena usually generate during the service of the titanium alloy rotor /stator parts of the aero engine compressor under high temperature conditions. This phenomenon is the main cause of the occurrence of titanium fire failure and has great harm. In the present investigation the friction and wear behavior of the combustion resistant titanium alloy at high temperature was studied by finite element numerical simulation and experimental verification of the pin-on-disk model. Firstly, the geometrical model of the round bottom pin-on-disk contact was established. Then, the friction process was simulated by the Coulomb friction model. The ALE technique of ABAQUS was applied to move the contact nodes and update the grid. The finite element simulation of the ARCHARD wear model was realized. In order to deal with the increasing contact area, a simplify wear direction was proposed. Finally, the wear depth and volume was calculated and the wear law at 500 °C -900 °C was revealed. The results show that the wear process is gentle at the temperature of 500-700 °C, and the wear depth is within 0.08mm when the sliding distance reaches 1800m. When the temperature exceeds 800 °C, the wear rate increased sharply and the wear depth beyond 0.1mm, the FE result is consistent with the test results.

• Periodical: Materials Science Forum (Volume 913)
• Pages: 168-175
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.913.168
• Online since: February 2018
• Authors: Xian Ye Liang, Guang Bao Mi*, Liang Ju He, Pei Jie Li
• Keywords: Combustion Resistant Titanium Alloy, Finite Element Simulation, Wear

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