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Erschienen in: The International Journal of Advanced Manufacturing Technology 9-10/2020

02.11.2020 | ORIGINAL ARTICLE

Dynamic characterization of Ti-4Al-1.5Mn titanium alloy and a simplified approach for shot peening simulation

verfasst von: Nan Su, Minghe Chen, Lansheng Xie, Wenxiang Shi, Feng Luo

Erschienen in: The International Journal of Advanced Manufacturing Technology | Ausgabe 9-10/2020

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Abstract

To predict the residual stress distribution of the Ti-4Al-1.5Mn (TC2) alloy in the manufacturing process, quickly and accurately, a precise dynamic constitutive model for rheological behavior and a new simplified approach for numerical simulation were proposed. The dynamic stress-strain curves indicate that the enhancement effect and plasticizing of the TC2 alloy are sensitive to high strain rates. The dispersed β particles play an important role in the formation of the adiabatic shear band and not widened significantly. The average relative error of 1.04% and the correlation coefficient of 0.9949 indicate that the modified Johnson-Cook constitutive model well describes the rheological behavior. Then, with the help of the Almen test, an efficient but simplified approach was proposed to achieving coverage and uniform loading in simulation. At last, the residual stress contribution of the TC2 alloy in the shot peening test is in a good agreement with the simulation results by random multipellet model.

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Metadaten
Titel
Dynamic characterization of Ti-4Al-1.5Mn titanium alloy and a simplified approach for shot peening simulation
verfasst von
Nan Su
Minghe Chen
Lansheng Xie
Wenxiang Shi
Feng Luo
Publikationsdatum
02.11.2020
Verlag
Springer London
Erschienen in
The International Journal of Advanced Manufacturing Technology / Ausgabe 9-10/2020
Print ISSN: 0268-3768
Elektronische ISSN: 1433-3015
DOI
https://doi.org/10.1007/s00170-020-06299-2

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