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Book Influence of Zirconium and Scandium on the Microstructure Tensile Properties and Hot tearing Susceptibility of Al 2WT Cu based Alloys

Download or read book Influence of Zirconium and Scandium on the Microstructure Tensile Properties and Hot tearing Susceptibility of Al 2WT Cu based Alloys written by Ahmed Nabawy and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Light Metals 2014

Download or read book Light Metals 2014 written by John Grandfield and published by Springer. This book was released on 2016-12-23 with total page 1351 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Light Metals symposia are a key part of the TMS Annual Meeting & Exhibition, presenting the most recent developments, discoveries, and practices in primary aluminum science and technology. Publishing the proceedings from these important symposia, the Light Metals volume has become the definitive reference in the field of aluminum production and related light metal technologies. The 2014 collection includes papers from the following symposia: •Alumina and Bauxite •Aluminum Alloys: Fabrication, Characterization and Applications •Aluminum Processing •Aluminum Reduction Technology •Cast Shop for Aluminum Production •Electrode Technology for Aluminum Production •Light-metal Matrix (Nano)-composites

Book Mechanical Properties of Irradiated Zirconium Zircaloy and Aluminum

Download or read book Mechanical Properties of Irradiated Zirconium Zircaloy and Aluminum written by Richard E. Schreiber and published by . This book was released on 1961 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Effect of Zr Addition and Aging Treatment on the Tensile Properties of Al Si Cu Mg Cast Alloys

Download or read book Effect of Zr Addition and Aging Treatment on the Tensile Properties of Al Si Cu Mg Cast Alloys written by Fawzy H. Samuel and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present study focused on the tensile properties at ambient and high temperatures of alloy 354 without and with the addition of zirconium. Tensile tests were performed on alloy samples submitted to various aging treatments, with the aim of understanding the effects of the addition made on the tensile properties of the alloy. Zirconium reacts only with Ti, Si, and Al in the alloys examined to form the phases (Al,Si)2(Zr,Ti) and (Al,Si)3(Zr,Ti). Testing at 25°C reveals that the minimum and maximum quality index values, 259 and 459 MPa, are observed for the as-cast and solution heat-treated conditions, respectively. The yield strength shows a maximum of 345 MPa and a minimum of 80 MPa within the whole range of aging treatments applied. The ultimate tensile and yield strength values obtained at room temperature for T5-treated samples stabilized at 250°C for 200 h are comparable to those of T6-treated samples stabilized under the same conditions, and higher in the case of elevated-temperature (250°C) tensile testing. Coarsening of the strengthening precipitates following such prolonged exposure at 250°C led to noticeable reduction in the strength values, particularly the yield strength, and a remarkable increase in the ductility values.

Book Low Temperature Mechanical Properties of Scandium Modified Al Zn Mg Cu Alloys

Download or read book Low Temperature Mechanical Properties of Scandium Modified Al Zn Mg Cu Alloys written by and published by . This book was released on 2002 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tensile properties of three wrought alloys, (1) Al-10Zn-3Mg-1.2Cu-0.15Zr, (2) Al-10Zn-3Mg-1.2Cu-0.15Zr-0.39Mn-0.49Sc, and (3) Al-12Zn-3Mg-1.2Cu-0.15Zr-0.39Mn-0.49Sc were studied in T6 and T7 conditions at 298K and 77K. The properties depended on the alloy compositions and heat treatment conditions. An increase in the concentration of Zn increased strength and decreased ductility. An addition of Sc increased both strength and ductility. The alloys showed very high strength both at room and cryogenic temperatures. In the T6 condition, the following properties were obtained at room temperature: YS = 760 to 805 MPa, UTS = 770 to 810 MPa, El = 3 to 9%. When the temperature was decreased to 77K, strength increased while elongation decreased, and their values were YS = 1005 to 1065 MPa, UTS = 1010 to 1065 MPa, El = 0.3 to 0.7%. Over-aging allowed an increase in elongation to a value as high as 8.5% at the values of YS = 805 MPa and UTS = 835 MPa at the cryogenic temperature. The deformed alloys showed mixed type of fracture. The fraction of the brittle component increased when the temperature decreased. Although they showed high elongation, the alloys in T7 condition fractured predominantly by intergranular mode at the cryogenic temperature.

Book The Effects of Scandium and Zirconium Additions on Aluminum Mechanical Properties Post braze Grain Structure and Extrusion

Download or read book The Effects of Scandium and Zirconium Additions on Aluminum Mechanical Properties Post braze Grain Structure and Extrusion written by Cory R. Williams and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Influence of the Microstructure on Mechanical Properties and Damage Mechanisms in Al Si Cu Alloys by Using 2D and 3D In situ Analysis

Download or read book Influence of the Microstructure on Mechanical Properties and Damage Mechanisms in Al Si Cu Alloys by Using 2D and 3D In situ Analysis written by Zaidao Li and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 2D and 3D characterization and image analysis have been performed to measure the microstructural changes associated with: different Sr, Fe and Mn levels, the casting process (Gravity Die Casting vs. Lost Foam Casting, LFC) and the solution heat treatments in A319 alloy. The evolution of microstructure in Al-Si-Cu alloy with different alloying elements addition was also studied by thermal analysis. The microstructure consists of hard inclusions, i.e. eutectic Si, iron-intermetallics and Al2Cu phases, and pores. The effect on mechanical properties of the alloys has been monitored by Vickers hardness measurement and tensile tests. Surface damage observations are performed on A319 alloys with different Fe content during in-situ tensile test, which allows following the development and localization of the deformation and cracks. Digital image correlation measurement and fractography highlighted the role of iron-intermetallics in the cracks initiation and propagation. Tensile tests on LFC A319 samples with two different heat treatment conditions were performed in-situ under Laboratory Computed Tomography. Strain measurements from digital volume correlation and observed damage mechanisms show that cracks initiate at hard inclusions in the areas with sufficient stress concentrations, which are mainly provided by large pores, and often propagate through the fracture of Al2Cu, iron-intermetallics, as well as through Si particles rather than by their decohesion from the matrix.

Book High strength Zirconium Alloys

Download or read book High strength Zirconium Alloys written by R. K. Wagner and published by . This book was released on 1959 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Tensile Properties of Zirconium and Zirconium Alloys

Download or read book Tensile Properties of Zirconium and Zirconium Alloys written by C. R. Simcoe and published by . This book was released on 1955 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Correlation of Microstructure and Mechanical Properties of Zr Sn Alloys

Download or read book Correlation of Microstructure and Mechanical Properties of Zr Sn Alloys written by MK. Asundi and published by . This book was released on 1991 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The role of tin as a solid solution strengthener and a precipitation hardener in zirconium base alloys has been examined. Mechanical properties and microstructure of Zr-Sn binary (0.5 to 8 wt% Sn) alloys were investigated in both ?-quenched and tempered conditions. The yield and ultimate tensile stresses and the percentage elongation were evaluated as a function of tin content, C, in both ?-quenched and tempered Zr-Sn alloys. The 0.2% yield stress shows a linear relationship with C2/3, suggesting the operation of the Mott-Nabarro model of solid solution strengthening in which clustering of solute atoms is envisaged. The presence of tin solute clusters could also be detected in TEM microstructures of ?-quenched alloys. The effect of tin content on the yield and flow behavior of zirconium has been examined at temperatures between 77 and 673 K. Results indicate that the addition of tin influenced both the thermal and athermal components of flow stress. The activation volume was found to be independent of the plastic strain, while it showed an increase with temperature and a decrease with solute content. The deformation process appeared to be controlled by two ratecontrolling mechanisms: (a) dislocations overcoming the substitutional solute clusters at temperatures below 473 K, and (b) movement of jogged screw dislocations at higher temperatures. The intermetallic precipitate phase formed due to tempering was identified as Zr3Sn with A15 structure having the following orientation relationship with the matrix: (0001)?//(111)Zr3Sn1210?//231Zr3Sn Because of the good lattice registry between the precipitate and the matrix phases, partial coherency between them is maintained even after considerable growth of precipitate particles.

Book Influence of Rolling Temperature and Copper Content on Creep and Other Properties of Zinc copper and Zinc titanium copper Alloys

Download or read book Influence of Rolling Temperature and Copper Content on Creep and Other Properties of Zinc copper and Zinc titanium copper Alloys written by L. A. Neumeier and published by . This book was released on 1970 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: