Thermal Simulation Test of AA-FGH95 Superalloy

• Main Authors: WANG Xuqing1, ZHANG Mincong, LUO Junpeng, PENG Zichao, SHENG Junying, YAN Jian
• Format: Article
• Language: zho
• Published: Journal of Aeronautical Materials 2016-12-01
• Series: Journal of Aeronautical Materials
• Subjects: AA-FGH95 superalloy; hot-deformation; constitutive equation; processing map
• Online Access: http://jam.biam.ac.cn/CN/10.11868/j.issn.1005-5053.2016.6.002

The hot deformation behavior of AA-FGH95 superalloy was investigated by hot compressive tests on Gleeble-1500D thermal simulation test machine in different temperatures and strain rates. The true stress-strain curves were obtained, and based on the deformation data, the constitutive equation and processing map of FGH95 superalloy were built. The deformation active energy of AA-FGH95 is <i>Q</i>=695.78 kJ/mol. The results show that the simulated maximum stresses are in agreement with the experimental data, and the average error is about 6%. Based on the processing map, the safety processing parameters of 1070-1100℃ and 0.01-0.001 s^-1 are confirmed. When the temperature reached 1100℃, the maximum strain rate increased to 0.5 s^-1.