Effect of Multi-Forging Condition on Deformed Structure and Mechanical Properties of A 99.995 Percent High Purity Aluminum

2015 ◽  
Vol 817 ◽  
pp. 360-366 ◽  
Author(s):  
Qing Feng Zhu ◽  
Wen Jing Wang ◽  
Zhi Hao Zhao ◽  
Yu Bo Zuo ◽  
Jian Zhong Cui
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
High Purity ◽  
Deformation Zone ◽  
Room Temperature ◽  
Stagnant Zone ◽  
Water Cooling ◽  
High Purity Aluminum

A purity of 99.995% high purity aluminum was deformed by multi-forging with different conditions (forged by different forging passes with and without water cooling). The effect of multi-forging on macrostructure and mechanical property of the high purity aluminum was investigated. The results show that the deformation heat during the MDF process can obviously affect the recrystallization of the high purity aluminum. Recrystallization occurs in the easy deformation zone of the sample as forged by 3 passes at room temperature. While, when the sample are cooling by water for each pass, no recrystallization occurs in the whole sample as forged by 9 passes. When the high purity forged at room temperature, the structure difference between the easy deformation zone and stagnant zone can not be eliminated by increasing the forging pass to 9. While, the area of the recrystal grain extends with increment of the forging pass.

The Structure Evolution of a 99.995 Percent High Purity Aluminum during Multi-Forging Process in Room Temperature

2014 ◽  
Vol 794-796 ◽  
pp. 876-881 ◽  
Author(s):  
Qing Feng Zhu ◽  
Zhi Hao Zhao ◽  
Yu Bo Zuo ◽  
Lei Li ◽  
Jian Zhong Cui
Keyword(s):  
High Purity ◽  
Deformation Zone ◽  
Room Temperature ◽  
True Strain ◽  
Stagnant Zone ◽  
Structure Evolution ◽  
Cumulative Strain ◽  
Aluminum Sample ◽  
High Purity Aluminum ◽  
Recrystallized Grain Size

In this study, a purity of 99.995percent high purity aluminum was multi-directionally forged up to a maximum cumulative strain of 4.5 at room temperature. The macro and micro structure evolution in the multi-directionally forge process was investigated by structure observations and hardness measurements. The results show that the inhomogeneous deformation of multi-directional forging results in that the structure and hardness is quite different between the easy deformation zone and stagnant zone. Dynamic recrystallization occurs in easy deformation zone of high purity aluminum sample at room temperature as the cumulative true strain is 1.5 (3 forging passes), while the structure in the stagnant zone is still not recrystallizated even at a cumulative true strain of 4.5 (9 forging passes). The recrystallized grain size in the easy deformation zone is reduced with the number of forging passes, and the area of recrystallize grains increase with the number of forging passes.

Anelastic deformation of high purity aluminum at room temperature

1976 ◽  
Vol 10 (2) ◽  
pp. 189-194 ◽  
Author(s):  
Nahum Nir ◽  
Edward W. Hart ◽  
Che-Yu Li
Keyword(s):  
High Purity ◽  
Room Temperature ◽  
High Purity Aluminum ◽  
Anelastic Deformation

Microstructure and Mechanical Properties of Mg-RE-B Alloys

2011 ◽  
Vol 311-313 ◽  
pp. 2251-2254
Author(s):  
Le Ping Bu ◽  
Qing Tai Shen ◽  
Pei Wu
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
Room Temperature ◽  
Tensile Yield Strength ◽  
Ingot Metallurgy ◽  
Particle Structure ◽  
Promising Candidate ◽  
Excellent Mechanical Property ◽  
Before And After ◽  
Microstructure And Mechanical Property

The best is to read these instructions and follow the outline of this text. Mg-RE-B alloy with minuteness particle structure (MPS) were prepared by ingot metallurgy including as-cast and hot-extruded processing, and the microstructure and mechanical property of Mg-6RE-3B2O3 (wt%) alloys were investigated before and after hot-extruded. The Mg-RE-B alloy has satisfied grain size and particle structure, went with excellent mechanical property of tensile yield strength of 520 MPa and elongation of 5% at room temperature. The MPS Mg-RE-B alloy is a promising candidate among lightweight structural materials

Dynamic recrystallization in high-purity aluminum single crystal under frictionless deformation mode at room temperature

2013 ◽  
Vol 28 (20) ◽  
pp. 2829-2834 ◽  
Author(s):  
Yong Seok Choi ◽  
Kyung Il Kim ◽  
Kyu Hwan Oh ◽  
Heung Nam Han ◽  
Suk Hoon Kang ◽  
...  
Keyword(s):  
Dynamic Recrystallization ◽  
Single Crystal ◽  
High Purity ◽  
Room Temperature ◽  
Deformation Mode ◽  
Aluminum Single Crystal ◽  
High Purity Aluminum ◽  
Image Position

Abstract

On Crystallographic Texture of As-Drawn Doped-W Wires

2005 ◽  
Vol 495-497 ◽  
pp. 913-918 ◽  
Author(s):  
S.K. Yerra ◽  
Bert Verlinden ◽  
Paul van Houtte
Keyword(s):  
Mechanical Properties ◽  
Mechanical Behaviour ◽  
Crystallographic Texture ◽  
Deformation Zone ◽  
Room Temperature ◽  
Volume Fraction ◽  
Wire Diameter ◽  
Texture Characteristics ◽  
The Wire ◽  
Textural Changes

Industrially processed doped-tungsten wires in the as-drawn condition have essentially a <110>-fibre texture with attractive mechanical properties. The main objectives of the present work are to investigate (I) if any textural changes occur as the wire diameter decreases and (II) if such changes influence the mechanical behaviour of the wire. A wire of about ∅1.5mm is drawn to about ∅0.15mm following a standard industrial route and samples were collected from five intermediate drawing passes. Bulk texture measurements using X-radiations were then carried on the transverse sections of the wires and texture characteristics such as volume fraction of textural components and sharpness index were quantified with respect to the wire diameter. It was observed that the texture in the as-drawn wires remains chiefly the same <110>-fibre as the wire diameter decreases. However, the sharpness of texture reaches a maximum at a certain diameter and decreases with further decrease in the wire diameter. An explanation is offered based on the concept of deformation zone geometry. An attempt was also made to determine if texture weakening has any effect on the mechanical properties of the wire at room temperature.

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