Journal Article

PUBDB-2021-01802

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Tube Drawing with Tilted Die: Texture, Dislocation Density and Mechanical Properties

Al-Hamdany, N. (Corresponding author)Extern* ; Salih, M. Z.Extern* ; Palkowski, H.Extern* ; Carradò, A.Extern* ; Gan, W.Extern* ; Schell, N.HZG* ; Brokmeier, H.-G.Extern*

2021
MDPI Basel

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Please use a persistent id in citations: doi:10.3390/met11040638  doi:10.3204/PUBDB-2021-01802

Abstract: Anisotropic behavior is a key characteristic for understanding eccentricity in tubes. Inthis paper, the effect of using a tilted die during tube drawing on eccentricity, texture, dislocationdensity, and mechanical properties is shown. Copper tubes were drawn with a 5 tilted die fortwo passes. The increase or decrease in eccentricity can be controlled by controlling the angle ofthe tilted die. Two types of textures have been developed during tube drawing, namely planestrain and uniaxial types. Plain strain type texture is mainly characterized by the fiber with adominant copper component {112}<111>. The uniaxial deformation type is dominated by the <111>fiber, as commonly found by wire drawing. Texture sharpness increases with increasing drawingstrain, and the texture varies significantly between the maximum and minimum wall thickness.This texture variation between maximum and minimum wall thickness has no significant influenceon mechanical properties, which are more or less similar, but the increase in strength after eachdrawing pass is apparent. The dislocation density is low for the as-received tubes due to recovery andrecrystallization. This is consistent with the as-received texture dominated by the cube component{001}<100>. During tube drawing, dislocation density increases as a function of the deformationstrain. The variation of dislocation density between the maximum and minimum wall thicknessin the tube deformed with 􀀀5 tilted die is higher than the variation in the tube deformed with+5 tilted die.

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)
2. Zentrum für Material- und Küstenforschung (HZG)

Research Program(s):

1. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)

Experiment(s):

1. PETRA Beamline P07 (PETRA III)

Appears in the scientific report 2021

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