Effect of “additional shear strain layer” on tensile strength and microstructure of fine drawn wire

2006 ◽  
Vol 177 (1-3) ◽  
pp. 704-708 ◽  
Author(s):  
S. Kajino ◽  
M. Asakawa
Keyword(s):  
Tensile Strength ◽  
Shear Strain ◽  
Strain Layer

Effect of Additional Shear Strain Layer on Microstructure and Tensile Strength of Fine Wire

2007 ◽  
Vol 340-341 ◽  
pp. 525-530 ◽  
Author(s):  
Satoshi Kajino ◽  
Motoo Asakawa
Keyword(s):  
Tensile Strength ◽  
Surface Layer ◽  
Tensile Test ◽  
Shear Strain ◽  
Crystal Orientation ◽  
Hardened Layer ◽  
High Tensile Strength ◽  
Center Layer ◽  
Fine Wire ◽  
Strain Layer

The mechanical and electrical applications of fine wires (D = 0.1 mm) has become more widely spread. In general, it is well known that fine drawn wires have high tensile strength while maintaining ductility. It has been determined that a hardened layer of around 0.04 mm in depth, referred to as the “additional shear strain layer,” is generated beneath the surface layer of the wire, and this additional shear strain layer affected the tensile strength of the fine wire. As an origin of this phenomenon, it was ascertained that the microstructure of surface layer was finer than that of center layer. The purpose of this paper is to investigate the effect of die angle on the microstructure and the tensile strength of the additional shear strain layer. The tensile test was performed as the surface layer was thinned by electro-polishing, and the crystal orientation and the crystal grain were measured via EBSD. As a result, it was ascertained that die angle affected the tensile strength and crystal grain refinement of the additional shear stray layer.

530 Influence of Surface Shear Strain Layer on Tensile Strength of Drawn Wire

2000 ◽  
Vol 2000.8 (0) ◽  
pp. 369-370
Author(s):  
Hiroyuki MIZUNO ◽  
Kentaroh YAMAGUTI ◽  
Ikuo OCHIAI. ◽  
Motoh ASAKAWA
Keyword(s):  
Tensile Strength ◽  
Shear Strain ◽  
Surface Shear ◽  
Strain Layer

327 Effect of Additional Shear Strain Layer on Tensile strength and Microstructure of Fine Wire

2007 ◽  
Vol 2007.15 (0) ◽  
pp. 225-226
Author(s):  
Satoshi KAJINO ◽  
Motoo ASAKAWA ◽  
Kazuki HOSODA ◽  
Yasuhiro MAEDA
Keyword(s):  
Tensile Strength ◽  
Shear Strain ◽  
Fine Wire ◽  
Strain Layer

scholarly journals Effect of Drawing Condition and Multipass Drawing on Additional Shear Strain Layer of Finely Drawn Wire

2008 ◽  
Vol 49 (568) ◽  
pp. 414-418
Author(s):  
Satoshi KAJINO ◽  
Motoo ASAKAWA ◽  
Kazuki HOSODA ◽  
Yasuhiro MAEDA
Keyword(s):  
Shear Strain ◽  
Strain Layer

scholarly journals Shape Effect Analysis of the Mechanical Properties of PVC-Coated Fabrics under Off-Axis Tension

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Lanlan Zhang ◽  
Yingying Zhang ◽  
Qichong Zhao ◽  
Junhao Xu ◽  
Jigang Xue
Keyword(s):  
Tensile Strength ◽  
Shear Strain ◽  
Strain Distribution ◽  
Longitudinal Strain ◽  
Image Correlation ◽  
Shape Effect ◽  
Effect Analysis ◽  
Elongation At Break ◽  
Full Field ◽  
Coated Fabrics

This paper selects polyvinyl chloride- (PVC-) coated fabrics to study its off-axial tensile behaviors under different off-axis angles including 0°, 15°, 30°, 45°, 60°, 75°, and 90°. In the experiment, dumbbell-shaped and strip-shaped specimens are analyzed for shape effect. The variations in the strain distribution are studied by using digital image correlation (DIC) noncontact full-field measurement system. The shape and off-axis angle of specimens are analyzed to predict the influences of shape effect. The results show that the longitudinal strain and shear strain of the coated fabrics are obviously symmetrical to the off-axis direction. The shear strain distribution of the two kinds is basically the same, but the longitudinal strain fields are different. The off-axis tensile properties of the material are obviously anisotropic and nonlinear. The tensile testing curve of the specimens mainly consists of three stages: initial linear stage, deformation strengthening stage, and stress strengthening stage. At 0°, the tensile strength is the largest and the elongation at break is the smallest. In contrast, at 45°, the elongation at break is the highest and the tensile strength was the smallest. The properties under the other off-axis angles were between these two extremes.

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