Reduction in anisotropy of mechanical properties of Ti-6Al-4V through martensite decomposition

For the Magnesium alloy AZ31, hot rolling is usually carried out in the temperature range between 250 and 400°C but the processed sheets usually exhibit high anisotropy in mechanical properties. In the current study, DSR process was found to be effective in improving anisotropy of mechanical properties and ductility at room temperature. Full recrystallization takes place from 200°C and above. A large drop of UTS occurs above 200°C where full recrystallization starts. Tensile elongation increases with annealing temperature but anisotropy degrades from 200°C onwards. Texture change during recrystallization is believed to be responsible for this result.

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Mechanical Anisotropy of Individual Osteons in Bone Tissue at High Spatial Resolutions

ASME 2009 Summer Bioengineering Conference, Parts A and B ◽

10.1115/sbc2009-206586 ◽

2009 ◽

Author(s):

Davide Carnelli ◽

Haimin Yao ◽

Ming Dao ◽

Pasquale Vena ◽

Roberto Contro ◽

...

Keyword(s):

Mechanical Properties ◽

Cortical Bone ◽

Mechanical Anisotropy ◽

Haversian Canal ◽

Maximum Penetration ◽

Fundamental Units ◽

Anisotropy Of Mechanical Properties ◽

Penetration Depths ◽

Secondary Osteons ◽

Mineralized Collagen

Secondary osteons, the fundamental units of cortical bone, consist of cylindrical lamellar composites composed of mineralized collagen fibrils. Due to its lamellar structure, a multiscale knowledge of the mechanical properties of cortical bone is required to understand the biomechanical function of the tissue. In this light, nanoindentation tests were performed along the axial and transverse directions following a radial path from the Haversian canal to the osteonal edges. Different length scales are explored by means of indentations at different maximum penetration depths. Indentation moduli and hardness data were then interpreted in the context of the known microstructure. Results suggest that secondary osteons hierarchical structure is responsible for an observed length scale effect, homogenization phenomena and anisotropy of mechanical properties.

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Effects of Deformation Texture Intensities and Precipitates on the Anisotropy of Mechanical Properties of Al-Li Alloy 2099 T83 Extrusions

ICAA13: 13th International Conference on Aluminum Alloys ◽

10.1002/9781118495292.ch274 ◽

2012 ◽

pp. 1830-1836

Author(s):

Alexandre Bois-Brochu ◽

Carl Blais ◽

Franck Armel Tchitembo Goma ◽

Daniel Larouche ◽

Julien Boselli ◽

...

Keyword(s):

Mechanical Properties ◽

Deformation Texture ◽

Anisotropy Of Mechanical Properties

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On Induced Anisotropy of Mechanical Properties of Elastomers

Mechanics of Solids ◽

10.3103/s0025654419070021 ◽

2019 ◽

Vol 54 (7) ◽

pp. 1016-1023

Author(s):

K. B. Ustinov

Keyword(s):

Mechanical Properties ◽

Induced Anisotropy ◽

Anisotropy Of Mechanical Properties

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The Research of Influence of Cold Rolling Conditions on Mechanical Properties Anisotropy of Sheets from Aluminum Alloy 8011A

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.685.385 ◽

2016 ◽

Vol 685 ◽

pp. 385-388

Author(s):

Yaroslav Erisov ◽

Fedor Grechnikov

Keyword(s):

Mechanical Properties ◽

Aluminum Alloy ◽

Cold Rolling ◽

Variance Reduction ◽

Reduction Ratio ◽

Sheet Plane ◽

Study Results ◽

Distribution Mode ◽

Anisotropy Of Mechanical Properties

The study results of the influence research of reduction ratio in cold rolling on the anisotropy of mechanical properties of sheets from aluminum alloy 8011A are shown in this article. It was determined that the effect of cold rolling on various mechanical properties is different. However, for all characteristics were usual to change the distribution mode and variance reduction in sheet plane during the high ratios of deformation. At the 85-90% reduction ratio it is observed the leveling of mechanical properties in sheet plane.

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Ausforming effects on anisotropy of mechanical properties in HSLA martensitic steel

Science China Technological Sciences ◽

10.1007/s11431-012-4891-9 ◽

2012 ◽

Vol 55 (7) ◽

pp. 1806-1813 ◽

Cited By ~ 3

Author(s):

ZhaoDong Li ◽

XinJun Sun ◽

WenQuan Cao ◽

QiLong Yong ◽

ZhiGang Yang ◽

...

Keyword(s):

Mechanical Properties ◽

Martensitic Steel ◽

Anisotropy Of Mechanical Properties

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Combined Isothermal Drawing of Axissymmetrical Parts Made out of Anisotropic Materials in Mode of Short-Time Creeping

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.684.152 ◽

2016 ◽

Vol 684 ◽

pp. 152-164

Author(s):

Sergey Sergeevich Yakovlev ◽

Olga Vasilievna Pilipenko ◽

Andrey Aleksandrovich Pasynkov

Keyword(s):

Mechanical Properties ◽

Experimental Research ◽

Anisotropic Material ◽

Stress Condition ◽

Anisotropic Body ◽

Anisotropic Materials ◽

Age Hardening ◽

Technological Parameters ◽

Short Time ◽

Anisotropy Of Mechanical Properties

Shown are results of theoretical and experimental research of force modes and limit possibilities of the first and subsequent operations of combined isothermal drawing of axisymmetric parts made out of anisotropic materials through conic and radial matrixes in the mode of short-time creeping. Studied was straining of anisotropic material under conditions of short-time creeping. We ignore the elastic components of strain. We introduced potential straining speeds for an anisotropic body under conditions of short-time creeping. Found was the effect of technological parameters, anisotropy of mechanical properties, and of age-hardening upon the stress condition, the force modes of the operation, and upon the design margin of strain during the first and subsequent operations of combined drawing. Experimental research was carried out for the force conditions and possible limits of straining during the first and second operations of combined isothermal drawing with convex-face and conic matrices in the mode of short-time creeping. Comparing the results of theoretical and experimental research for force modes and strain limits during the first and subsequent operations of combined drawing has shown their satisfactory similarity (up to 5% - 10%).

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Size-dependent mechanical properties of twin graphene

Proceedings of the Institution of Mechanical Engineers Part N Journal of Nanomaterials Nanoengineering and Nanosystems ◽

10.1177/2397791420972553 ◽

2020 ◽

pp. 239779142097255

Author(s):

Fangyan Zhu ◽

Jiantao Leng ◽

Zhengrong Guo ◽

Tienchong Chang

Keyword(s):

Mechanical Properties ◽

Fracture Strain ◽

Building Blocks ◽

Fracture Pattern ◽

Uniaxial Tensile ◽

Carbon Allotrope ◽

Size Dependent ◽

Potential Applications ◽

Dynamics Simulations ◽

Anisotropy Of Mechanical Properties

Twin Graphene, a novel 2D planar semiconducting carbon allotrope predicted recently, has attracted tremendous attention due to its potential applications in nano electromechanical systems (NEMS). In this paper, we use Molecular Dynamics simulations to investigate the mechanical properties of twin graphene. By performing uniaxial tensile loading, we find that the Young’s modulus, failure stress and fracture strain of a twin graphene sheet are strongly dependent on its size. Rectangular sheets show more apparent anisotropy of mechanical properties than square sheets. Our results also demonstrate that the fracture pattern of twin graphene is dependent on its geometry, as a result of its diverse bond types and orientations. These findings present an in-depth understanding of size dependent mechanical properties of twin graphene, and may benefit its future applications as building blocks of NEMS devices.

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