Gradient Structures in Thin-Walled Metallic Tubes Produced by Continuous High Pressure Tube Shearing Process

TY - JOUR

T1 - Gradient Structures in Thin-Walled Metallic Tubes Produced by Continuous High Pressure Tube Shearing Process

AU - Lapovok, Rimma

AU - Qi, Yuanshen

AU - Ng, Hoi P.

AU - Toth, Laszlo S.

AU - Estrin, Yuri

N1 - Publisher Copyright: © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

PY - 2017/11

Y1 - 2017/11

N2 - A new severe plastic deformation process, the authors refer to as High Pressure Tube Shearing (HPTS), is proposed. This type of deformation processing enhances the strength of the walls of metallic tubes by producing gradient microstructures with ultrafine grained layers in near-surface regions. The thickness of the layers associated with a gradient in microstructure can be controlled by tuning the rotational and translational speeds of the process. The paper describes several examples of steel and titanium tubes processed by different variants of HPTS. The possibility of producing gradient microstructures with ultrafine grained layers at inner or outer surface of a tube, or at both surfaces is demonstrated by in-depth theoretical analysis, finite element simulations, and experimental investigation of the microstructure and texture of tube walls.

AB - A new severe plastic deformation process, the authors refer to as High Pressure Tube Shearing (HPTS), is proposed. This type of deformation processing enhances the strength of the walls of metallic tubes by producing gradient microstructures with ultrafine grained layers in near-surface regions. The thickness of the layers associated with a gradient in microstructure can be controlled by tuning the rotational and translational speeds of the process. The paper describes several examples of steel and titanium tubes processed by different variants of HPTS. The possibility of producing gradient microstructures with ultrafine grained layers at inner or outer surface of a tube, or at both surfaces is demonstrated by in-depth theoretical analysis, finite element simulations, and experimental investigation of the microstructure and texture of tube walls.

KW - gradient structures

KW - high pressure tube shearing

KW - severe plastic deformation

UR - http://www.scopus.com/inward/record.url?scp=85021735822&partnerID=8YFLogxK

U2 - 10.1002/adem.201700345

DO - 10.1002/adem.201700345

M3 - 文章

AN - SCOPUS:85021735822

SN - 1438-1656

VL - 19

JO - Advanced Engineering Materials

JF - Advanced Engineering Materials

IS - 11

M1 - 1700345

ER -