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Inhomogeneous Deformation of Interstitial Free Steel during the High Pressure Torsion Process
Yuepeng Song, Miaomiao Chen, Wenke Wang, Baoyan Xu, Dongsheng Gao, Shuai Zhang, Hyoung Seop Kim
Korean J. Met. Mater. 2017;55(10):710-715.   Published online 2017 Sep 28
DOI: https://doi.org/10.3365/KJMM.2017.55.10.710

Interstitial free (IF) steel disks were subjected to various degrees of revolution during application of the high-pressure torsion (HPT) process, and the resulting distributions of hardness and microstructure during the early torsion stage of high-pressure torsion (HPT) were investigated using experimental and simulation approaches. The results indicated that the deformation..... More

Effects of Friction and Anvil Design on Plastic Deformation during the Compression Stage of High-Pressure Torsion
Yuepeng Song, Miaomiao Chen, Baoyan Xu, Dongsheng Gao, Jing Guo, Lingfeng Xu, Zheng Wang, Hyoung Seop Kim
Korean J. Met. Mater. 2016;54(11):831-837.   Published online 2016 Nov 5
DOI: https://doi.org/10.3365/KJMM.2016.54.11.831

Herein, we report the results of our investigation on the effect of friction and anvil design on the heterogeneous plastic-deformation characteristics of copper during the compressive stage of high-pressure torsion (HPT), using the finite element method. The results indicate that the friction and anvil geometry play important roles in the..... More

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