Influence of Equal Channel Angular Extrusion Processing on the Physical, Mechanical, and Microstructural Properties Od Al-Cu-Li Base Alloys PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Influence of Equal Channel Angular Extrusion Processing on the Physical, Mechanical, and Microstructural Properties Od Al-Cu-Li Base Alloys PDF full book. Access full book title Influence of Equal Channel Angular Extrusion Processing on the Physical, Mechanical, and Microstructural Properties Od Al-Cu-Li Base Alloys by Hanadi Ghoneim Salem. Download full books in PDF and EPUB format.
Author: Hanadi Ghoneim Salem
Publisher:
ISBN:
Category :
Languages : en
Pages : 608
Get Book Here
Book Description
Author: Hanadi Ghoneim Salem
Publisher:
ISBN:
Category :
Languages : en
Pages : 608
Get Book Here
Book Description
Author: Terry C. Lowe
Publisher: Springer Science & Business Media
ISBN: 9401140626
Category : Technology & Engineering
Languages : en
Pages : 392
Get Book Here
Book Description
Material processing techniques that employ severe plastic deformation have evolved over the past decade, producing metals, alloys and composites having extraordinary properties. Variants of SPD methods are now capable of creating monolithic materials with submicron and nanocrystalline grain sizes. The resulting novel properties of these materials has led to a growing scientific and commercial interest in them. They offer the promise of bulk nanocrystalline materials for structural; applications, including nanocomposites of lightweight alloys with unprecedented strength. These materials may also enable the use of alternative metal shaping processes, such as high strain rate superplastic forming. Prospective applications for medical, automotive, aerospace and other industries are already under development.
Author: Perumalla Janaki Ramulu
Publisher: Anchor Academic Publishing
ISBN: 3960671067
Category : Technology & Engineering
Languages : en
Pages : 57
Get Book Here
Book Description
“Equal Channel Angular Extrusion” (ECAE) is a significant method in industrial forming applications, which is the most important method for the production of ultrafine grained bulk samples, where plastic strains are introduced into the bulk material without any changes in the cross section. ECAE has different die channel angles from which an optimum die channel angle should be identified so that efficient mechanical properties will be obtained. This study is focused on the plastic deformation behavior of Al alloys by modeling ECAE with experimental and finite element software. A solid model was generated using CATIA. The STL files of ECAE die generated in CATIA were used in DEFORM-3D for simulations. The experiments are performed by designing the ECAE tools such as die, punch and billet. A series of numerical experiments were carried out for the die angles of 115°, 125°and 135° and outer corner angle of 6°, using a billet diameter of 9mm and a height of 70mm. A detailed analysis of the strains introduced by ECAP (“Equal Channel Angular Pressing”) in a single passage through the die is noted. The experiments are conducted by attaching the ECAE tools to the Universal Testing Machine on aluminum alloy. The dimensions are followed for ECAE by taking considerations from the existing literature into account. On the basis of the experiment and simulation results, load, displacement, and punch force are evaluated and compared with each other.
Author: Mingdong Cai
Publisher:
ISBN:
Category :
Languages : en
Pages : 246
Get Book Here
Book Description
Author: Stephen J. Hales
Publisher: DIANE Publishing
ISBN:
Category : Aluminum-lithium alloys
Languages : en
Pages : 58
Get Book Here
Book Description
Author: Abiodun Ayodeji Abioye
Publisher:
ISBN:
Category : Technology
Languages : en
Pages :
Get Book Here
Book Description
Materials strengthened by conventional methods such as strain hardening, solute additions, precipitation and grain size refinement are often adopted in industrial processes. But there is limitation to the amount of deformation that these conventional methods can impact to a material. This study focused on the review of major mechanical properties of aluminum alloys in the presence of an ultrafine grain size into polycrystalline materials by subjecting the metal to an intense plastic straining through simple shear without any corresponding change in the cross-sectional dimensions of the sample. The effect of the heavy strain rate on the microstructure of aluminum alloys was in refinement of the coarse grains into ultrafine grain size by introducing a high density of dislocations and subsequently re-arranging the dislocations to form an array of grain boundaries. Hence, this investigation is aimed at gathering contributions on the influence of equal channel angular extrusion toward improving the mechanical properties of the aluminum alloys through intense plastic strain.
Author: T. Sheppard
Publisher: Springer Science & Business Media
ISBN: 1475730012
Category : Technology & Engineering
Languages : en
Pages : 428
Get Book Here
Book Description
In recent years the importance of extruded alloys has increased due to the decline in copper extrusion, increased use in structural applications, environmental impact and reduced energy consumption. There have also been huge technical advances. This text provides comprehensive coverage of the metallurgical, mathematical and practical features of the process.
Author: William Heffner
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
ABSTRACT: Industry standard 6061 and 6063 Aluminum alloys were processed by equal channel angular extrusion (ECAE) at room temperature using a Bc route with a constant feed rate of 0.25 mm/s through a die angle of 90° between the die channels. The influence of ECAE processing on the evolution of the microstructure, microtexture and microhardness in the material was studied using orientation imaging microscopy (OIM), X-ray diffractometry, and Vickers microhardness testing. Detailed analysis was carried out on samples of the as-received, one, two, four and eight pass conditions.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 11
Get Book Here
Book Description
High-purity (99.99%) aluminum that had been subjected to equal-channel angular pressing (ECAP) was analyzed by orientation imaging microscopy (OIM). The analysis of microtexture and microstructure by OIM will be reviewed. The ECAP pressing was conducted at room temperature with a die that had a 900 angle between the die channels and repetitive pressings followed either route A, Bc or C. Billets were examined after one pass and after four or twelve passes by each of the ECAP routes. After one pressing operation, the deformation-induced microstructure was inhomogeneous at the resolution of OIM and consisted mostly of subgrains. Following four pressings by each of the routes, the microstructures were homogeneous and exhibited similar (sub)grain sizes l.3mum). Elongation and alignment of the (sub)grains with the shearing direction of the last pressing operation was observed in all cases. The corresponding disorientation distributions showed significant increases in the fractions of high-angle boundaries (theta greater than l5 deg) although processing route had little apparent effect on the observed distributions. However, distinct differences were noted in the microtexture data. After 12 pressing operations by any of the different routes the grain size was reduced further to about 10mum. The fraction of high-angle boundaries also increased slightly but, again, processing route had little effect on the disorientation distribution. Different textures were apparent for each processing route, although texture data for all routes indicated that a 111 tended to align with the shear plane of the final pressing pass.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 308
Get Book Here
Book Description
