Uniaxial Compression Test and FEM Simulation for GH4145 Superalloy at Room Temperature

Abstract:

In this paper, uniaxial compression testsfor GH4145 superalloywere conducted on Gleeble-3800 at room temperature and 60°C with strain rates ranging from 0.5s^-1 to 10s^-1. No cracks were observed in all the specimens deformed from 10% to 70%, indicating that the GH4145 superalloy possesses great ductility under room temperature. The flow stress of GH4145 superalloywas not sensitive to strain rate deformed around room temperature and it decreased slightly with the temperature increasing. Dynamic recovery during deformation will start to balance the effect of work hardening when the true strain was arisen up to 0.4. Good agreement between the calculated and simulated temperature and strain shows that calculation method is accurate enough for the prediction.

• Periodical: Materials Science Forum (Volume 788)
• Pages: 438-445
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.788.438
• Online since: April 2014
• Authors: Pei Tao Hua, Wei Hong Zhang, Wen Ru Sun*, Lin Jie Huang, Sheng Chao Li
• Keywords: Compression Test, Deformation Heating, Flow Stress, GH4145 Superalloy

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