Abstract
The variation law of internal stress-strain curves of b10 alloy at 800–1050 °C and strain rate 0.01–10 s−1 was studied by thermal compression test. The rheological behavior of the alloy showed the characteristic of steady state, as the rheological stress increased rapidly to the peak stress at the beginning of the strain, and then remained unchanging or slowly increase or decrease. The rheological stress of the alloy increased when the strain rate or decreasing strain temperature increased, and the discontinuous dynamic occurred in the process of thermal compression. Moreover the constitutive equation of thermal deformation was established. The stress exponent (n) of the alloy at different temperatures was calculated and the Q-equivalent of strain activation energy was calculated.
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Acknowledgements
This study was financially supported by the National Natural Science Foundation of China (Grant No.51401026) and National Key Research and Development Program of China (Grant No.2016YFB0301404).
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Zhang, J., Liu, D., Wang, Q., Liu, F., Yang, S. (2018). Rheological Stress Behavior of B10 Copper-Nickel Alloy During Hot Deformation Process. In: Han, Y. (eds) Advances in Materials Processing. CMC 2017. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-13-0107-0_60
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DOI: https://doi.org/10.1007/978-981-13-0107-0_60
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