Characterization of microstructure in high strength Mg96Y3Zn1 alloy processed by extrusion and equal channel angular pressing

2011 ◽  
Vol 29 (9) ◽  
pp. 902-906 ◽  
Author(s):  
Bin CHEN ◽  
Chen LU ◽  
Dongliang LIN ◽  
Xiaoqin ZENG
Keyword(s):  
Equal Channel Angular Pressing ◽  
High Strength ◽  
Angular Pressing

Characterization of the Gas Tungsten Arc Welding (GTAW) joint of Armco iron nanostructured by Equal-Channel Angular Pressing (ECAP)

2021 ◽  
Vol 288 ◽  
pp. 116902
Author(s):  
Jairo Alberto Muñoz ◽  
Alexander Komissarov ◽  
Ignacio Mejía ◽  
Humberto Hernández-Belmontes ◽  
José-María Cabrera
Keyword(s):  
Equal Channel Angular Pressing ◽  
Arc Welding ◽  
Armco Iron ◽  
Gas Tungsten Arc Welding ◽  
Gas Tungsten Arc ◽  
Angular Pressing ◽  
Gas Tungsten

Mechanical Properties of Al6061 Processed by Equal Channel Angular Pressing

2012 ◽  
Vol 585 ◽  
pp. 392-396 ◽  
Author(s):  
Ankit Sahai ◽  
Rahul Swarup Sharma ◽  
K. Hans Raj ◽  
Narinder Kumar Gupta
Keyword(s):  
Mechanical Properties ◽  
Equal Channel Angular Pressing ◽  
Manufacturing Industry ◽  
High Strength ◽  
Load Variations ◽  
Outer Corner ◽  
Angular Pressing ◽  
Ecap Process ◽  
Circular Specimen ◽  
Number Of Passes

The severe plastic deformation (SPD) is an effective approach for producing bulk nanostructured materials. The Equal Channel Angular Pressing (ECAP) is the most efficient SPD solution for achieving ultra-fined grained (UFG) material as billet undergoes severe and large deformation. The process parameters of ECAP (Channel Angle, angle of curvature, friction, number of passes, etc) influences major impact on the properties. In present work, the ECAP process is performed by pressing a specimen through a die consisting of two intersecting channels meeting at an angle φ and outer corner meeting at an angle ψ. Experiments with a circular specimen of Al6061 were conducted to investigate the changes in mechanical properties upto 2 passes. 3-D finite element simulations were also performed using metal forming software FORGE to study the evolution of strain in the specimen during the ECAP process. Simulation results were investigated by comparing them with experimental measured data in terms of load variations. The present work clearly shows that ECAP caused accentuated increase in Al6061 hardness and tensile strength during multi-pass processing. This study is beneficial in developing high quality, high strength products in manufacturing industry on account of its ability to change microstructure of materials.

Characterization of Mechanically Alloyed Al5083 Alloy and Composite and Consolidation by Equal Channel Angular Pressing

2015 ◽  
Vol 764-765 ◽  
pp. 23-27 ◽  
Author(s):  
G. Kondaiah ◽  
K. Chandra Sekhar ◽  
B. Chaithanyakrushna ◽  
Balasubramanian Ravisankar ◽  
S. Kumaran
Keyword(s):  
Equal Channel Angular Pressing ◽  
Back Pressure ◽  
X Ray Diffraction ◽  
Mechanically Alloyed ◽  
Composite Powders ◽  
Oxide Powders ◽  
Angular Pressing ◽  
Al 5083 Alloy ◽  
Milled Powders

In the present work a comparative study was carried out on consolidation of Al-5083 alloy and 5wt. % nanoyttrium oxide powders by Equal channel angular pressing (ECAP). The powders were milled for 10, 15 and 20 hrs using planetary ball mill under optimized process parameters. The milled powders were characterised by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Milled powders exhibit nanocrystalline single phase after 10hrs. The crystallite size after 20 hr of milling, alloy and composite powders were found to be 23nm and 57nm respectively. The 20hr milled alloy and composite powder was consolidated by equal channel angular pressing (ECAP) through 90o die channel angle using route-A for two passes with and without back pressure. Density of ECAPed samples were measured using Archimedes principle. The highest density was found as 96% for the alloy after 2 passes without backpressure and sintering and 94% for the composite after 2 passes with back pressure and sintering.

Mechanical and Microstructural Characterization of Al-6082 Ultrafine-Grained Alloys Processed by ECAP Combined with Traditional Forming Techniques

2008 ◽  
Vol 589 ◽  
pp. 111-116 ◽  
Author(s):  
György Krállics ◽  
Arpad Fodor ◽  
Jenő Gubicza ◽  
Z. Fogarassy
Keyword(s):  
Mechanical Properties ◽  
Equal Channel Angular Pressing ◽  
Microstructural Characterization ◽  
Shape Rolling ◽  
Rotary Forging ◽  
Angular Pressing ◽  
Ultrafine Grained ◽  
Forming Methods

An Al-6082 alloy was subjected to equal channel angular pressing (ECAP) and subsequently to conventional forming methods such as shape rolling and rotary forging. The effect of different deformation techniques on the microstructure and the mechanical properties was studied. It was found that the shape rolling and rotary forging increased further the strength of ECAP-processed samples and induced a loss of ductility.

Characterization of creep properties and creep textures in pure aluminum processed by equal-channel angular pressing

2008 ◽  
Vol 56 (10) ◽  
pp. 2307-2317 ◽  
Author(s):  
Megumi Kawasaki ◽  
Irene J. Beyerlein ◽  
Sven C. Vogel ◽  
Terence G. Langdon
Keyword(s):  
Equal Channel Angular Pressing ◽  
Pure Aluminum ◽  
Creep Properties ◽  
Angular Pressing

Achieving excellent ductility in high-strength Mg-10.6Gd-2 Ag alloy via equal channel angular pressing

2020 ◽  
Vol 817 ◽  
pp. 152688 ◽  
Author(s):  
Jiapeng Sun ◽  
Bingqian Xu ◽  
Zhenquan Yang ◽  
Hao Zhou ◽  
Jing Han ◽  
...  
Keyword(s):  
Equal Channel Angular Pressing ◽  
High Strength ◽  
Angular Pressing
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