Download or read book Microstructure Mechanical Behavior and Corrosion Properties of Friction Stir Welded Aluminum Alloys Used in the Aerospace Industry written by Ulises Alfaro Mercado and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microstructure Mechanical Behavior and Corrosion Properties of Friction Stir Welded Aluminium Alloys Used in the Aerospace Industry written by Ulises Alfaro Mercado and published by . This book was released on 2011 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanical Metallurgical and Fatigue Properties of Friction Stir Welded and Tungsten Inert Gas Welded AA6061 T6 Aluminium Alloys written by Akshansh Mishra and published by GRIN Verlag. This book was released on 2017-09-11 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: Project Report from the year 2017 in the subject Engineering - Mechanical Engineering, grade: 8.9, SRM University, language: English, abstract: This paper deals with the mechanical, microstructural and fatigue analysis of welded joints. In the study, 6061-T6 aluminium alloy plates in 4mm thickness, that are particularly used for aerospace and in automotive industries, were welded using Tungsten Inert Gas (TIG) welding and Friction Stir Welding (FSW) methods as similar joints with one side pass and parameters of varying tool rotation, weld speed and 2.3 degree tool tilt angle. The weld zones cross sections were analysed with light optical microscopy (LOM). During recent years several investigations have been made of fatigue properties of friction stir welded joints. The great majority of available data from the fatigue analysis of friction stir welded joints are concerned with uniaxial loading conditions for a simple geometry. In uniaxial loading nominal stress is normally used as reference stress and it is easy to determine. However, fatigue failure is a highly localized phenomenon in engineering components and determining the nominal stress is not always possible due to the complexity of structures and presence of stress concentrators such as notches and cracks in which many approaches based on local parameters.
Download or read book Friction Stir Welding of High Strength 7XXX Aluminum Alloys written by Rajiv S. Mishra and published by Butterworth-Heinemann. This book was released on 2016-06-08 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Friction Stir Welding of High Strength 7XXX Aluminum Alloys is the latest edition in the Friction Stir series and summarizes the research and application of friction stir welding to high strength 7XXX series alloys, exploring the past and current developments in the field. Friction stir welding has demonstrated significant benefits in terms of its potential to reduce cost and increase manufacturing efficiency of industrial products in transportation, particularly the aerospace sector. The 7XXX series aluminum alloys are the premium aluminum alloys used in aerospace. These alloys are typically not weldable by fusion techniques and considerable effort has been expended to develop friction stir welding parameters. Research in this area has shown significant benefit in terms of joint efficiency and fatigue performance as a result of friction stir welding. The book summarizes those results and includes discussion of the potential future directions for further optimization. Offers comprehensive coverage of friction stir welding of 7XXX series alloys Discusses the physical metallurgy of the alloys Includes physical metallurgy based guidelines for obtaining high joint efficiency Summarizes the research and application of friction stir welding to high strength 7XXX series alloys, exploring the past and current developments in the field
Download or read book Microstructural and Mechanical Property Characterization of Shear Formed Aerospace Aluminum Alloys written by Lillianne P. Troeger and published by . This book was released on 2000 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced manufacturing processes such as near-net-shape forming can reduce production costs and increase the reliability of launch vehicle and airframe structural components through the reduction of material scrap and part count and the minimization of joints. The current research is an investigation of the processing-microstruture-property relationships for shear formed cylinders of the Al-Cu-Li-Mg-Ag alloy 2195 for space applications and the Al-Cu-Mg-Ag alloy C415 for airframe applications. Cylinders which had undergone various amounts of shear-forming strain were studied to correlate the grain structure, texture, and mechanical properties developed during and after shear forming.
Download or read book Corrosion Behavior of Friction Stir Welded High Strength Aluminum Alloys written by J. B. Lumsden and published by . This book was released on 2002 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Friction stir welding (FSW), a relatively new solid state joining process, is used to join aluminum alloys of all compositions including alloys essentially considered unweldable. During FSW, a rotating tool provides a continual hot working action, plasticizing metal within a narrow zone at the join line, while transporting metal from the leading face of the probe to the trailing edge as the tool moves along the interface. Although melting does not occur during FSW, temperatures are sufficiently high and times at temperature sufficiently long to cause dissolution, nucleation, and/or coarsening of strengthening precipitates. The temperature-time profile changes with distance from the nugget causing a gradient in micro structure and precipitate morphology. The altered micro structure in the weld zone becomes sensitized in some high strength aluminum alloys. Results presented assess the pitting, intergranular, and SCC corrosion behavior of FSW 7XXX and 2XXX alloys. Progress in understanding the changes in microstructure responsible for the sensitization will be discussed. The presentation also will include evaluations of approaches for corrective measures.
Download or read book Mechanical Behaviour of Aluminium Alloys written by Ricardo Branco and published by MDPI. This book was released on 2018-12-10 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Mechanical Behaviour of Aluminium Alloys" that was published in Applied Sciences
Download or read book Mechanical Property Microstructure Correlations in Friction Stir Welded Aluminum Alloys written by Siddharth Ramkrishna Sharma and published by . This book was released on 2002 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Structure property Relationships of Dissimilar Friction Stir Welded Aluminum Alloys written by Rogie Irwin Rodriguez and published by . This book was released on 2015 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work, the relationship between microstructure and mechanical properties of dissimilar friction stir welded AA6061-to-AA7050 aluminum alloys were evaluated. Experimental results from this study revealed that static strength increased with the tool rotational speed and was correlated with the material intermixing. Fully-reversed low cycle fatigue experimental results showed an increase in the strain hardening properties as well as the number of cycles-to-failure as the tool rotational speed was increased. Furthermore, under both static and cyclic loading, fracture of the joint was dominated by the AA6061 alloy side of the weld. In addition, inspection of the fatigue surfaces revealed that cracks initiated from intermetallic particles located near the surface. In order to determine the corrosion resistance of the dissimilar joint, corrosion defects were produced on the crown surface of the weld by static immersion in 3.5% NaCl for various exposure times. Results revealed localized corrosion damage in the thermo-mechanically affected and heat affected zones. Results demonstrated a decrease in the fatigue life, with evidence of crack initiation at the corrosion defects; however, the fatigue life was nearly independent of the exposure time. This can be attributed to total fatigue life dominated by incubation time. Furthermore, two types of failure were observed: fatigue crack initiation in the AA6061 side at high strain amplitudes (>0.3%); and fatigue crack initiation in the AA7050 side at low strain amplitudes (
Download or read book Evaluation of Mechanical Corrosion and Tribological Properties of Normal and Submerged Friction Stir Welded Joints of Aa6061 and Aa6063 written by Dr. Laxmanaraju Salavaravu & Dr. Lingaraju Dumpala and published by Laxmi Book Publication. This book was released on 2023-09-01 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aluminium is a soft, light metal with a dull silvery-white colour. It is the second most abundant element. Aluminium's lightweight and corrosion resistance made it a vital metal in the 19th century. It is the second most malleable and sixth most ductile element after gold. It is three times lighter than steel and is three times stronger than steel. Tm-660°C and has a lower density (2.7g/cm3). In annealed form, pure aluminium has a tensile strength of 40-50 MPa. It is strengthened by alloying, cold working, and heat treatment. The joining of aluminium alloys presents many challenges due to a tenacious oxide layer, high thermal conductivity, high Coefficient of thermal expansion, and solidification defects [1]. Aluminium is alloyed with many other elements to improve its strength and corrosion resistance. Many difficult-to-weld aluminium alloys can be defect-free and mechanically sound using FSW [2]. Their numerous benefits make aluminium alloys widely used in vehicle and building structural applications. Aluminium and its alloys have various capabilities and applications, making them the material of choice for many products and markets. Their low density, appearance, strength, and fabricability make them appealing. They have wrought alloys or cast alloys. Wrought alloys are designated as 1xxx-pure aluminium, 2xxx-Al-Cu alloys, 3xxx-Al-Mn alloys, 4xxx-Al-Si alloys, 5xxx-Al-Mg alloys, 6xxx-Al-Mg-Si alloys, 7xxx-Al-Zn alloys, and 8xxx-Al-Tin-Li, where the first digit denotes principal alloying. These alloys are classified in to two types-one is heat-treatable(2xxx, 6xxx, 7xxx, and some of the 8xxx alloys) and another one is non-heat treatable (ASTM Handbook 1985) [3]. 6xxx series are wrought aluminium alloys with Si and Mg. They are heat treatable and corrosion-resistant. They naturally weld due to their high strength to weight ratio. The 6xxx series accounts for roughly 80% of global aluminium extrusion [4]. AA6063 is popular for its formability, medium strength, and high corrosion resistance. AA6063 is a heat treatable magnesium silicide. AA6063 is used for extrusions and irrigation pipes [5].
Download or read book Microstructure and Mechanical Properties of Dissimilar Friction Stir Welding of 6061 to 7050 Aluminum Alloys written by and published by . This book was released on 2015 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microstructural and Mechanical Property Characterization of Shear Formed Aerospace Aluminum Alloys written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-09-20 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced manufacturing processes such as near-net-shape forming can reduce production costs and increase the reliability of launch vehicle and airframe structural components through the reduction of material scrap and part count and the minimization of joints. The current research is an investigation of the processing-microstructure-property relationships for shear formed cylinders of the Al-Cu-Li-Mg-Ag alloy 2195 for space applications and the Al-Cu-Mg-Ag alloy C415 for airframe applications. Cylinders which had undergone various amounts of shear-forming strain were studied to correlate the grain structure, texture, and mechanical properties developed during and after shear forming.Troeger, Lillianne P. and Domack, Marcia S. and Wagner, John A.Langley Research CenterALUMINUM ALLOYS; MANUFACTURING; MECHANICAL PROPERTIES; SHEAR STRAIN; DEFORMATION; SHEARING; AIRFRAMES; CYLINDRICAL BODIES; STRUCTURAL DESIGN; TECHNOLOGY UTILIZATION
Download or read book Microstructure and Mechanical Properties of High speed Friction Stip Welded Aluminum Alloys written by Raghu Satyanarayana Rao and published by . This book was released on 2004 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stress corrosion Cracking of Aluminum Alloys written by J. D. Jackson and published by . This book was released on 1965 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Composite Fabrication on Age Hardened Alloy using Friction Stir Processing written by Namrata Gangil and published by CRC Press. This book was released on 2020-12-13 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Microstructure and Corrosion Behavior of Friction Stir Welded AM50 and AZ31 Mg Alloys written by Yael Templeman and published by . This book was released on 2016 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Friction Stir Welding of 2XXX Aluminum Alloys including Al Li Alloys written by Rajiv S. Mishra and published by Butterworth-Heinemann. This book was released on 2016-10-01 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Friction Stir Processing of 2XXX Aluminum Alloys including Al-Li Alloys is the latest edition in the Friction Stir Welding and Processing series and examines the application of friction stir welding to high strength 2XXX series alloys, exploring the past and current developments in the field. The book features recent research showing significant benefit in terms of joint efficiency and fatigue performance as a result of friction stir welding. Friction stir welding has demonstrated significant benefits in terms of its potential to reduce cost and increase manufacturing efficiency of industrial products including transportation, particularly the aerospace sector. The 2XXX series aluminum alloys are the premium aluminum alloys used in aerospace. The book includes discussion of the potential future directions for further optimization, and is designed for both practicing engineers and materials scientists, as well as researchers in the field. Provides comprehensive coverage of friction stir welding of 2XXX series alloys Discusses the physical metallurgy of the alloys Includes physical metallurgy-based guidelines for obtaining high joint efficiency Features illustrated examples of the application of FSW in the aerospace industry
