Metallurgical and Materials Transactions A

, Volume 49, Issue 8, pp 3151–3156 | Cite as

Surface Abrasive Torsion for Improved Mechanical Properties and Microstructure

  • Ji Hyun Moon
  • Seung Mi Baek
  • Seok Gyu Lee
  • Jae Ik Yoon
  • Sunghak Lee
  • Hyoung Seop Kim


A novel process of discrete surface abrasion during simple torsion (ST), named “surface abrasive torsion (SAT),” is proposed to overcome the limitation of ST, i.e., insufficient strain for severe plastic deformation (SPD) due to cracks initiated on the surface, by removing the roughened surface region. The effect of SAT on delayed crack initiation was explained using finite element simulations. Larger shear deformation applicable to the specimen in SAT than ST was demonstrated experimentally.


This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (Grant No. 2017R1A2A1A17069427).


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Copyright information

© The Minerals, Metals & Materials Society and ASM International 2018

Authors and Affiliations

  • Ji Hyun Moon
    • 1
  • Seung Mi Baek
    • 1
  • Seok Gyu Lee
    • 1
  • Jae Ik Yoon
    • 1
  • Sunghak Lee
    • 1
  • Hyoung Seop Kim
    • 1
  1. 1.Department of Materials Science and EngineeringPohang University of Science and Technology (POSTECH)PohangSouth Korea

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