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.
Download or read book Correlation of Mechanical Properties with Microstructures and Deformation Modes in Selected High Strength Zirconium Alloys written by Calhoun Wilson Hendrix and published by . This book was released on 1977 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Zirconium in the Nuclear Industry written by Craig M. Eucken and published by ASTM International. This book was released on 1991 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings of the Ninth International Symposium on [title], held in Kobe, Japan, November 1990, address current trends in the development, performance, and fabrication of zirconium alloys for nuclear power reactors. the bulk of the most recent work on zirconium alloy behavior has concerned corr
Download or read book Magnesium written by Karl U. Kainer and published by John Wiley & Sons. This book was released on 2006-03-06 with total page 1088 pages. Available in PDF, EPUB and Kindle. Book excerpt: The need for light-weight materials, especially in the automobile industry, created renewed interest in innovative applications of magnesium materials. This demand has resulted in increased research and development activity in companies and research institutes in order to achieve an improved property profile and better choice of alloy systems. Here, development trends and application potential in different fields like the automotive industry and communication technology are discussed in an interdisciplinary framework.
Download or read book The Thermal Analysis of Zirconium Tin Alloys written by L. L. Wyman and published by . This book was released on 1952 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phase Transformations written by Srikumar Banerjee and published by Elsevier. This book was released on 2010-05-31 with total page 837 pages. Available in PDF, EPUB and Kindle. Book excerpt: The terms phase transitions and phase transformations are often used in an interchangeable manner in the metallurgical literature. In Phase Transformations, transformations driven by pressure changes, radiation and deformation and those occurring in nanoscale multilayers are brought to the fore. Order-disorder transformations, many of which constitute very good examples of continuous transformations, are dealt with in a comprehensive manner. Almost all types of phase transformations and reactions that are commonly encountered in inorganic materials are covered and the underlying thermodynamic, kinetic and crystallographic aspects elucidated. - Shows readers the advancements in the field - due to enhanced computing power and superior experimental capability - Drawing upon the background and the research experience of the authors, bringing together a wealth of experience - Written essentially from a physical metallurgists view point
Download or read book Magnesium Alloys Containing Rare Earth Metals written by L.L. Rokhlin and published by CRC Press. This book was released on 2003-02-20 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnesium-based alloys containing rare-earth metals are important structural materials, as they combine low density with high-strength properties. This makes them particularly attractive for industry, especially in cases where the low weight of constructions is critical, as in aircraft and space apparatus construction. One of the remarkable feature
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1972 with total page 1052 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Download or read book The effects of zirconium on the microstructure and mechanical properties of the A1 Li Cu Mg alloy 8090 written by William Daniel Smith and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microstructure and Mechanical Properties of Structural Metals and Alloys written by Andrey Belyakov and published by MDPI. This book was released on 2019-06-24 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: The papers collected in this special issue clearly reflect the modern research trends in materials science. These fields of specific attention are high-Mn TWIP steels, high-Cr heat resistant steels, aluminum alloys, ultrafine grained materials including those developed by severe plastic deformation, and high-entropy alloys. The major portion of the collected papers is focused on the mechanisms of microstructure evolution and the mechanical properties of metallic materials subjected to various thermo-mechanical, deformation or heat treatments. Another large portion of the studies is aimed on the elaboration of alloying design of advanced steels and alloys. The changes in phase content, transformation and particle precipitation and their effect on the properties are also broadly presented in this collection, including the microstructure/property changes caused by irradiation.
Download or read book Zirconium in the Nuclear Industry Tenth International Symposium written by A. M. Garde and published by ASTM International. This book was released on 1994 with total page 805 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics and Engineering of Metallic Materials written by Yafang Han and published by Springer. This book was released on 2019-02-14 with total page 733 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers selected papers from the Chinese Materials Conference 2018 (CMC2018) held in Xiamen City, Fujian, China, on July 12–16, 2018. The Chinese Materials Conference (CMC) is the Chinese Materials Research Society’s most important conference series and has been held annually since the early 1990s. The 2018 edition consisted of 32 domestic symposia, 2 international symposia and 1 international materials forum. This proceedings book covers the fields of powder metallurgy, advanced aluminum alloys, advanced magnesium alloys, superalloys, metal matrix composites, space materials science and technology, as well as nanoporous metal materials, and presents recent original research findings from more than 300 research groups at various universities and research institutes.
Download or read book Investigations of the Microstructure and Mechanical Properties of Prior Structure as a Function of the Oxygen Content in Two Zirconium Alloys written by Anthony Stern and published by . This book was released on 2009 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is now well acknowledged that, after a prototypical loss of coolant accident (LOCA) transient, the resultant mechanical properties of fuel cladding tubes depend strongly on the oxygen content of the residual prior-? layer, as this phase is the only metallic part of the high-temperature oxidized cladding that may show some residual ductility. The aim of this study is to obtain relevant information on the evolution of the mechanical properties, on the one hand, of the prior-? structure as a function of the oxygen content, assuming that there is a critical oxygen content that leads to a ductile-to-brittle failure mode transition at low testing temperatures (20-135°C); and on the other hand, of the ?(O) structure as a function of the oxygen content. Sheets of Zircaloy-4, 1 to 3 mm thick, and M5® advanced alloys from AREVA NP have been studied. To obtain different oxygen contents, they were oxidized at high temperature and then annealed under vacuum in order to reduce the oxide layer. Systematic post-treatment measurements of the oxygen concentration and of its homogeneity within the sheet thickness were performed. The different prior-? and ?(O) structures thus obtained have homogeneous oxygen content between ~0.14 wt. % and 0.9 wt. % and ~2 wt. % and 7 wt. %, respectively. Such oxygen concentration ranges cover the solubility values that are expected in the ? phase and in the ?(O) phase at high temperatures typical of LOCA transients. Detailed microstructure investigations were subsequently performed on the prior-? structures since it is considered to be the most important layer when regarding the post-quench mechanical behavior of the material. Continuous cooling temperature (CCT) phase diagrams as a function of the oxygen content were established to correctly interpret the results. Electron backscattered diffraction (EBSD) analysis has then allowed the crystallographic orientations and the morphology of prior-? phase sub-grains to be determined. For each considered prior-? grain, it was possible to interpret the data by taking into account the "Bürgers" crystallographic relationship between the parent ? phase and the resultant ? phase. Complementary electron probe microanalysis (EPMA) was also used. These last experiments have shown a spatial fluctuation of the oxygen content within the microstructure that depends both on the nominal oxygen content and on the cooling rate. Nanohardness measurements were also performed and correlated with this oxygen spatial partition. These measurements proved to be useful for the understanding of the tensile macroscopic mechanical behavior. Finally, on the one hand, tensile tests were performed on prior-? phase at testing temperatures ranging from -100°C up to 260°C. The ductile-to-brittle temperature transition and the mechanical constitutive laws as a function of the oxygen content were then described. These tests show the existence of a ductile-to-brittle failure mode transition at 20°C for a critical oxygen concentration of ~0.5 wt. %. A detailed fractographic analysis was performed to assess the failure mechanism. On the other hand, four-point bending tests were conducted on ?(O) phase at 25°C and 135°C in order to obtain behavior laws. Preliminary finite element calculations were performed to simulate ring compression tests carried out on multi-layered high-temperature oxidized cladding tubes.
Download or read book Plasma Electrolytic Oxidation PEO Coatings written by Marta Mohedano and published by MDPI. This book was released on 2021-06-02 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plasma electrolytic oxidation (PEO), also known as micro-arc oxidation (MAO), functionalizes surfaces, improving the mechanical, thermal, and corrosion performance of metallic substrates, along with other tailored properties (e.g., biocompatibility, catalysis, antibacterial response, self-lubrication, etc.). The extensive field of applications of this technique ranges from structural components, in particular, in the transport sector, to more advanced fields, such as bioengineering. The present Special Issue covers the latest advances in PEO‐coated light alloys for structural (Al, Mg) and biomedical applications (Ti, Mg), with 10 research papers and 1 review from leading research groups around the world.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1972-06 with total page 1112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Nuclear Science and Technology written by and published by . This book was released on 1991 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
