Composite Fabrication on Age-Hardened Alloy using Friction Stir Processing

Composite Fabrication on Age-Hardened Alloy using Friction Stir Processing PDF Author: Namrata Gangil
Publisher: CRC Press
ISBN: 1000299031
Category : Technology & Engineering
Languages : en
Pages : 139

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Book Description
This up-to-date reference text discusses the fabrication technique for strengthening of high specific strength alloys including age-hardened aluminum alloys for several industrial applications. The text presents an exhaustive overview of the materials used in the aircraft construction in general and age-hardened aluminum alloys in particular. The text discusses important concepts including surface composite fabrication using friction stir processing (FSP), FSP tools, effect of reinforcement particles, and conditions that affect strengthening during surface composite fabrication on age-hardened aluminum alloys. The text will facilitate the readers to control parameters and avoid conditions that lead to a net negative impact on the resulting composites and select the one that lead to a net gain. It will enable the readers, researchers, and professionals to plan and practice composite fabrication via FSP with a benefit of net strengthening. The understanding of specific strength of materials used in applications including aerial vehicles and manufacturing is important. The proposed text highlights importance of age-hardened alloy as one of the materials used for diverse applications. It discusses strengthening strategies of existing age-hardened aluminum alloys through composite fabrication via a solid-state FSP route. The text will help students and professionals working in the field of manufacturing, materials science, and aerospace engineering. The text discusses an important aspect of strengthening age-hardened alloy using solid-state friction stir processing for diverse applications in industries including manufacturing and aviation. It will serve as an ideal reference for graduate students, academic researchers, and professionals in the field of mechanical engineering, aerospace engineering, and materials science. It will also be helpful to the professionals working in the aviation and manufacturing industries.

Composite Fabrication on Age-Hardened Alloy using Friction Stir Processing

Composite Fabrication on Age-Hardened Alloy using Friction Stir Processing PDF Author: Namrata Gangil
Publisher: CRC Press
ISBN: 1000299031
Category : Technology & Engineering
Languages : en
Pages : 139

Get Book Here

Book Description
This up-to-date reference text discusses the fabrication technique for strengthening of high specific strength alloys including age-hardened aluminum alloys for several industrial applications. The text presents an exhaustive overview of the materials used in the aircraft construction in general and age-hardened aluminum alloys in particular. The text discusses important concepts including surface composite fabrication using friction stir processing (FSP), FSP tools, effect of reinforcement particles, and conditions that affect strengthening during surface composite fabrication on age-hardened aluminum alloys. The text will facilitate the readers to control parameters and avoid conditions that lead to a net negative impact on the resulting composites and select the one that lead to a net gain. It will enable the readers, researchers, and professionals to plan and practice composite fabrication via FSP with a benefit of net strengthening. The understanding of specific strength of materials used in applications including aerial vehicles and manufacturing is important. The proposed text highlights importance of age-hardened alloy as one of the materials used for diverse applications. It discusses strengthening strategies of existing age-hardened aluminum alloys through composite fabrication via a solid-state FSP route. The text will help students and professionals working in the field of manufacturing, materials science, and aerospace engineering. The text discusses an important aspect of strengthening age-hardened alloy using solid-state friction stir processing for diverse applications in industries including manufacturing and aviation. It will serve as an ideal reference for graduate students, academic researchers, and professionals in the field of mechanical engineering, aerospace engineering, and materials science. It will also be helpful to the professionals working in the aviation and manufacturing industries.

Fabrication of the Composite Surface for Aluminum Alloys by Dfsp

Fabrication of the Composite Surface for Aluminum Alloys by Dfsp PDF Author: Harith Abdullah
Publisher:
ISBN: 9781973495468
Category :
Languages : en
Pages : 56

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Book Description
Friction stir processing (FSP) is one of the new and promising thermomechanical processing techniques that alters the microstructural and mechanical properties of the material in single pass to achieve maximum performance with low production cost in less time using a simple and inexpensive tool. This Engineering book studies a new techinque of the FSP. Direct friction stir processing new technique (DFSP) with new tool design introduced in this book . DFSP is used to produce composite surface for AA7075-T651 plate thickness 6mm by adding SiC particles. A hollow tool used as a reservoir for powder particles. Through holes on shoulder used as feeding holes of powder. A mechanical pressing system used to help powder inserting process. Improving mechanical properties observed was 206 HV at 1460 rpm rotating speed; 60 mm/min travels speed with particle size 3.5 μm for SiC.

Friction Stir Welding and Processing in Alloy Manufacturing

Friction Stir Welding and Processing in Alloy Manufacturing PDF Author: Carlos Agelet de Saracibar
Publisher: MDPI
ISBN: 3039212079
Category : Science
Languages : en
Pages : 146

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Book Description
This book is a printed edition of the Special Issue Friction Stir Welding and Processing in Alloy Manufacturingthat was published in Metals

Green Composites Manufacturing

Green Composites Manufacturing PDF Author: Gurminder Singh
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3111067343
Category : Science
Languages : en
Pages : 302

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Book Description
In today's society researchers are more focused on cleaner materials production for environmental sustainability. This approach aims at reducing waste and the development of materials with enhanced properties and functionality. This book focuses on optimizing manufacturing processes for sustainable composite materials. It discusses optimum utilization of resources by using minimum effort to save cost and energy.

Solid-State Welding: Friction and Friction Stir Welding Processes

Solid-State Welding: Friction and Friction Stir Welding Processes PDF Author: Esther Titilayo Akinlabi
Publisher: Springer Nature
ISBN: 3030370151
Category : Technology & Engineering
Languages : en
Pages : 145

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Book Description
This book presents critical information on the principles and operation of friction welding, friction stir welding, and friction stir processing enhanced with many robust illustrations. It explains the application of these technologies and the current research efforts in the field. The authors explain in detail the advantages offered by these welding processes, in particular their ability to join dissimilar materials not possible to weld in the past. Written for graduate students, researchers, and industrial professionals, the book reinforces concepts presented with case studies on the experimental analysis of welding the dissimilar materials of copper and aluminum, and on friction stir processing.

Fabrication of SiC/magnesium Alloy Composite Via Friction Stir Processing

Fabrication of SiC/magnesium Alloy Composite Via Friction Stir Processing PDF Author: Ahmad Z. Naser
Publisher:
ISBN:
Category : Magnesium
Languages : en
Pages : 128

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Book Description
"One of the most interesting improvements in the history of materials is composites manufacturing. Because of their ability to improve different mechanical properties of some metals, nanoparticles have been given much attention in the composites community. After the successful use and popularity of Friction Stir Welding (FSW) in many applications worldwide, its latest modification into Friction Stir Processing (FSP) has recently been given a considerable amount of attention. FSP can be considered today as one of the most successful alternatives for fabricating metal matrix composite. In this investigation, a Silicon Carbide (SiC)/magnesium alloy composite was fabricated using FSP. Different combinations of tool rotational and translational speeds (RS and TS) were used throughout the study. The effect of such combination on the thermal profile, micro-hardness, and microstructure was studied and compared. Furthermore, a Response-Surface Methodology was used to develop a model to predict the micro-hardness for FSPed specimens using different combinations of process parameters. FSP of Mg AZ 31B as well as Mg/SiC composite was successfully accomplished using different combinations of tool rotational and translational speeds. Micro-hardness results showed excellent agreement with both the thermal and microstructural analysis. Micro-hardness results of the Mg/SiC composite showed a significant amount of improvement. The developed micro-hardness model was very accurate in predicting the micro-hardness values."--Abstract.

Synthesis of Surface Composites Using Friction Stir Processing

Synthesis of Surface Composites Using Friction Stir Processing PDF Author: Bharat Gattu
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 108

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Book Description
"Composite materials have an edge over monolithic materials due to higher strength/stiffness - to - density ratios, improved fatigue and wear resistance and better high temperature properties. Surface composites provide improved tribological properties such as wear resistance, friction coefficient and corrosion resistance. Friction stir processing (FSP) which originated from friction stir welding (FSW - a method for joining aluminum alloys) is a solid state technique to modify the microstructure of the alloys. During FSP the frictional heat generated at the tool - work piece interface plasticizes the material allowing it to flow around the pin. The combined effect of the plastic deformation and the generated heat leads to grain refinement in the alloys. In the present work, effort has been made to expand the scope of FSP as a novel method for the synthesis of surface composites. Different ways for incorporation of SiC particles into A11100 alloy were explored and compared with each other. The response of the flow of the powder in the substrate during FSP has been studied for different processing features. The effects of various parameters and methodology on the incorporation and distribution of SiC particles in the nugget, the microstructure and mechanical properties of the composite layer were studied"--Abstract, leaf iv.

Surface Modification Technologies

Surface Modification Technologies PDF Author: T. S. Sudarshan
Publisher: ASM International
ISBN: 1615031138
Category : Technology & Engineering
Languages : en
Pages : 171

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Book Description


Fabrication of Metal Matrix Composites by Friction Stir Processing

Fabrication of Metal Matrix Composites by Friction Stir Processing PDF Author: Hossein Izadi
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 139

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Book Description
This thesis focuses on fabrication of aluminum matrix composites using friction stir processing. Al 5059 alloy was selected as the matrix alloy, and the effect of processing parameters on microstructure and mechanical properties of this alloy was studied in detail. Friction stir processing was conducted using three different tools with different rotation speeds. Microstructural characterization was carried out by optical microscopy, SEM and TEM. It was shown that fine grains form in the stir zone as a result of dynamic recrystallization and these fine grains do not grow during the cooling cycle because of the effect of magnesium on reducing grain boundary mobility. TEM analysis also showed that the microstructure contained Al6(Mn,Fe) particles with two different morphologies. It was confirmed that refinement of these particles can more effectively pin the grain boundaries and suppress grain growth. Grain size measurement was performed on the samples to investigate the effect of process parameters on recrystallization and grain growth in the stir zone. Mechanical properties were also obtained by microhardness and tensile tests. A tool with 3 flats in combination with a rotation speed of 454 RPM provides slightly higher grain refinement and subsequent mechanical properties. It is shown that friction stir processing reduces the fraction of elongated precipitates that form on the grain boundaries of the base material, and this resulted in approximately a 10% improvement in elongation to failure in friction stir processed Al 5059 samples. Particle fragmentation also appeared to increase the rate of work hardening, which also likely contributed to enhanced ductility. A multi-pass multi-tool FSP technique using different processing parameters was proposed for fabrication of Al 5059/Al2O3 and Al 5059/CNT composites. A uniform distribution of reinforcing particles was achieved in both cases with a uniform hardness profile through the stir zone. The microhardness of the composites was significantly higher than the original aluminum alloy. However, it was noted that the thermo-mechanical cycles during processing of the Al/CNT composites have destroyed the tubular structure of the CNTs.

Fabrication of Surface Metal Matrix Composites Using Friction Stir Processing

Fabrication of Surface Metal Matrix Composites Using Friction Stir Processing PDF Author: Saman Sahraeinejad
Publisher:
ISBN:
Category :
Languages : en
Pages : 57

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Book Description
Friction stir processing has been employed to produce metal matrix composites by incorporating reinforcement particles in an Al 5059 matrix. Various particles with sizes from 130 nm to 4.3 um, and different process parameters, were examined to obtain a uniform distribution of particles within the processed region. Mechanical properties (i.e. tensile and microhardness) of the Al 5059 matrix metal matrix composites reinforced with Al2O3, SiC, and B4C were tested and compared. Tensile tests demonstrated increases in yield strength by 20, 32, and 38 percent compared to the matrix alloy for composites containing Al2O3, SiC, and B4C, respectively. The average microhardness value within the stir zone increased from 85 HV in the base material to a maximum of 170 HV in the B4C-reinforced composite. Particle refinement during friction stir processing was more pronounced with micron-sized particles, and virtually insignificant for nano-sized particles. Nano-scale particles seem to be more efficient in increasing the hardness when a similar fraction is used compared to micro-sized particles.