Enhancing room temperature mechanical properties of Mg–9Al–Zn alloy by multi-pass equal channel angular extrusion

2010 ◽  
Vol 210 (5) ◽  
pp. 751-758 ◽  
Author(s):  
Jufu Jiang ◽  
Ying Wang ◽  
Zhiming Du ◽  
Jianjun Qu ◽  
Yi Sun ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Room Temperature ◽  
Equal Channel Angular Extrusion ◽  
Angular Extrusion ◽  
Zn Alloy

Experimental and FEM Analysis of the AA 6082 Processed by Equal Channel Angular Extrusion

2011 ◽  
Vol 478 ◽  
pp. 46-53 ◽  
Author(s):  
Javier León ◽  
C.J. Luis-Pérez ◽  
Daniel Salcedo ◽  
Ivan Pérez ◽  
Juan Pablo Fuertes ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Room Temperature ◽  
Equal Channel Angular Extrusion ◽  
High Pressure Torsion ◽  
Fem Analysis ◽  
Fem Simulations ◽  
Roll Bonding ◽  
Angular Extrusion ◽  
Deformation Processes ◽  
Made In

Recent studies have shown that severe plastic deformation processes (SPD) improve the mechanical properties of the processed parts. Some of the most outstanding SPD processes are as follows: High Pressure Torsion (HPT), Repetitive Corrugation and Straightening (RCS), Cyclic Extrusion Compression (CEC), Accumulative Roll Bonding (ARB), Conform and Continuous Combined Drawing and Rolling (CCDR), among others, but the most well-known is Equal Channel Angular Extrusion or Pressure (ECAE/ECAP). The aim of these processes is to introduce high values of deformation inside the parts in order to reduce the grain size and thus to improve the mechanical properties of the starting material. The study of the damage imparted to an AA-6082 alloy is made in the present work. This alloy is received as cast and it is quenched at a temperature of 530 °C during 4 hours in order to be processed by ECAE at room temperature using different geometries of the dies. The imparted damage is also studied by using FEM simulations.

Effect of Second Phase on the Mechanical Properties of Mg-Al-Zn Alloy by Equal Channel Angular Extrusion

2007 ◽  
Vol 546-549 ◽  
pp. 249-252 ◽  
Author(s):  
Wen Jiang Ding ◽  
Li Jin ◽  
Dong Liang Lin ◽  
Xiao Qin Zeng ◽  
Da Li Mao
Keyword(s):  
Mechanical Properties ◽  
Grain Size ◽  
Magnesium Alloy ◽  
Equal Channel Angular Extrusion ◽  
Tensile Deformation ◽  
Second Phase ◽  
Second Phase Particles ◽  
Angular Extrusion ◽  
Zn Alloy ◽  
Zn Alloys

The effect of second phase on the mechanical properties of AZ61 and AZ91 Mg-Al-Zn magnesium alloy processed by equal-channel angular extrusion (ECAE) has been investigated. The results revealed that cracks initiated at and propagated through the α-Mg/β-Mg17Al12 interfaces and grain boundaries of Mg-Al-Zn alloys during tensile deformation. For AZ61, the elongation increased with the increase of ECAE pass number and the decrease of grain size. However, the elongation of AZ91 with more second phase particles decreased with the increase of ECAE pass number and the decrease of grain size.

scholarly journals Mechanical Properties of Mg-Y-Zn Alloy Processed by Equal-Channel-Angular Extrusion

2003 ◽  
Vol 44 (4) ◽  
pp. 463-467 ◽  
Author(s):  
Hiroyuki Watanabe ◽  
Toshiji Mukai ◽  
Shigeharu Kamado ◽  
Yo Kojima ◽  
Kenji Higashi
Keyword(s):  
Mechanical Properties ◽  
Equal Channel Angular Extrusion ◽  
Angular Extrusion ◽  
Zn Alloy

Mechanical Properties of Equal-Channel Angular Extrusion-Processed Al-20Zn Alloy

2012 ◽  
Vol 445 ◽  
pp. 195-200
Author(s):  
Murat Aydin ◽  
Yakup Heyal
Keyword(s):  
Mechanical Properties ◽  
Impact Toughness ◽  
Equal Channel Angular Extrusion ◽  
Considerable Change ◽  
Fatigue Properties ◽  
Dendritic Microstructure ◽  
Two Phase ◽  
Angular Extrusion ◽  
Alloy Increase ◽  
The Impact

The mechanical properties mainly tensile properties, impact toughness and high-cycle fatigue properties, of two-phase Al-20Zn alloy subjected to severe plastic deformation (SPD) via equal-channel angular extrusion (ECAE) using route A up to 2 passes were studied. The ECAE almost completely eliminated as-cast dendritic microstructure including casting defects such as micro porosities. A refined microstructure consisting of elongated micro constituents, α and α+η eutectic phases, formed after ECAE via route A. As a result of this microstructural change, mechanical properties mainly the impact toughness and fatigue performance of the as-cast Al-20Zn alloy increased significantly through the ECAE. The rates of increase in fatigue endurance limit are approximately 74 % after one pass and 89 % after two passes while the increase in impact toughness is 122 %. Also the yield and tensile strengths of the alloy increase with ECAE. However, no considerable change occurred in hardness and percentage elongation of the alloy. It was also observed that the ECAE changed the nature of the fatigue fracture characteristics of the as-cast Al-20Zn alloy.

Mechanical properties and microstructure of AA1050 after ECAE (Equal Channel Angular Extrusion)

2010 ◽  
Author(s):  
K. J. Kim ◽  
D. Y. Yang ◽  
J. W. Yoon ◽  
F. Barlat ◽  
Y. H. Moon ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Equal Channel Angular Extrusion ◽  
Angular Extrusion
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