Download or read book Microstructure Characterisation of Rapidly Solidified Al Ni Cr and Si Ge Alloy Powders written by Naveed Hussain and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rapidly Solidified Powder Aluminum Alloys written by Morris E. Fine and published by ASTM International. This book was released on 1986 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization of Rapidly Solidified Al Fe V Si Alloy Powders written by Burç Aral and published by . This book was released on 2001 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rapidly Quenched Materials written by H. Fredriksson and published by Elsevier. This book was released on 2012-12-02 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 327 papers in this two-volume set cover a wide range of topics concerning the production, processing and properties of rapidly quenched melts. Various techniques for the production of non-equilibrium materials are also discussed, including solid state amorphization by rapid interdiffusion and thermobaric quenching.

Download or read book Rapidly Quenched Metals 6 Volume 3 written by R.W. Cochrane and published by Elsevier. This book was released on 1988-01-01 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rapidly Quenched Metals 6: Volume 3

Download or read book Research on Rapidly Solidified Alloys written by D. Shechtman and published by . This book was released on 1984 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report describes the study of rapidly solidified alloys including methods of preparation, Processing and characterization using a variety of techniques such as TEM, analytical electron microscopy, and x-ray diffraction. Contents: (1) Rapid Solidification Microstructures and Precipitates in Aluminum Magnesium Alloys. (2) Microstructure of Supercooled Submicrometer Aluminum Cooper Alloy Powder. (3) The Effect of Rapid Solidification Velocity on Microstructure and Phase Solubility Extension in Nickel Aluminum/Chromium Quasibinary Eutectic. (4) Cellular Microsegregation in Rapidly Solidified Silver-15 wt% Copper Alloys. (5) Orientation Relationship Between Precipitated Al9(Fe, Ni)2 Phase and Alpha-Aluminum. (6) Rapidly Solidified Aluminum Chromium Alloys: Structure and Decomposition Behavior.

Download or read book Characterization of Rapidly Solidified Alloys written by D. Shechtman and published by . This book was released on 1982 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents: The Microstructure of Rapidly Solidified NiAl-Cr Quasibinary Eutectic; Microstructural Studies on Supercooled Submicrometer size Particles; Nondestructive Phases in Rapidly Solidified Aluminum-Rich Al-Fe alloys, and The Effect of Rapid Solidification Velocity on the Microstructure of Ag-Cu Alloys.

Download or read book Rapidly Quenched Metals 6 written by and published by . This book was released on 1988 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Microstructural Development of Rapid Solidification in Al Si Powder written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The microstructure and the gradient of microstructure that forms in rapidly solidificated powder were investigated for different sized particles. High pressure gas atomization solidification process has been used to produce a series of Al-Si alloys powders between 0.2[mu]m to 150[mu]m diameter at the eutectic composition (12.6 wt pct Si). This processing technique provides powders of different sizes which solidify under different conditions (i.e. interface velocity and interface undercooling), and thus give different microstructures inside the powders. The large size powder shows dendritic and eutectic microstructures. As the powder size becomes smaller, the predominant morphology changes from eutectic to dendritic to cellular. Microstructures were quantitatively characterized by using optical microscope and SEM techniques. The variation in eutectic spacing within the powders were measured and compared with the theoretical model to obtain interface undercooling, and growth rate during the solidification of a given droplet. Also, nucleation temperature, which controls microstructures in rapidly solidified fine powders, was estimated. A microstructural map which correlates the microstructure with particle size and processing parameters is developed.

Download or read book Metals Abstracts written by and published by . This book was released on 1998 with total page 1042 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Microstructure in Rapidly Solidified Al Ti Si and Al Ti Fe Alloys written by Duc Long Nguyen and published by . This book was released on 1996 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Analysis of the Microstructure and Mechanical Properties of Rapidly Solidified Al 1Fe 1Ni 5Mg Alloy written by and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Microstructural Development in Al Si Powder During Rapid Solidification written by Amber Lynn Genau and published by . This book was released on 2004 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Powder metallurgy has become an increasingly important form of metal processing because of its ability to produce materials with superior mechanical properties. These properties are due in part to the unique and often desirable microstructures which arise as a result of the extreme levels of undercooling achieved, especially in the finest size powder, and the subsequent rapid solidification which occurs. A better understanding of the fundamental processes of nucleation and growth is required to further exploit the potential of rapid solidification processing. Aluminum-silicon, one alloy of significant industrial importance, was chosen as a model for simple eutectic systems displaying an unfaceted/faceted interface and skewed coupled eutectic growth zone. Al-Si powder produced by high pressure gas atomization was studied to determine the relationship between microstructure and alloy composition as a function of powder size and atomization gas. Critical experimental measurements of hypereutectic (Si-rich) compositions were used to determine undercooling and interface velocity, based on the theoretical models which are available. A revised microstructural map is proposed which allows the prediction of particle morphology based on temperature and composition.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rapid Solidification and Subsequent Analysis of Some Hypereutectic Aluminum Based Alloys written by RD. Field and published by . This book was released on 1986 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: A number of hypereutectic aluminum-based alloys have been prepared using rapid solidification processing. Two types of studies have been made, each involving a different set of alloy compositions. The first experiment was concerned with determination of the change in microstructural morphology of rapidly solidified Al-Ni alloys as a function of solute concentration. The results obtained for both laser surface melting and melt spinning were essentially identical in that there is a marked variation in microstructure for nickel concentrations in the range of 4.5 to 8.0% (atomic percent). The occurrence of these various microstructural morphologies has been interpreted on the basis of local interface undercooling and an asymmetrically disposed region of coupled growth. The second experimental approach involved a comparison of the responses of Al-4.1Fe-0.6X (indicated in atomic percent), where X was either molybdenum or cerium. The microstructure of the rapidly solidified molybdenum-containing alloy was found to be identical to that of the binary Al-4.7Fe and consisted of a cellular morphology with randomly distributed refined intercellular particles. The cerium-containing alloy also exhibited a cellular morphology, but the intercellular regions seemed to contain two phases, the first being the same as that found in the binary and molybdenum-containing alloys and the second tentatively identified as an oxide based on cerium. The microstructural changes and hardness variations have been determined as a function of aging at temperatures up to 773 K.

Download or read book Rapid Solidification and Undercooling of Aluminum Germanium Alloys written by Michael Joseph Kaufman and published by . This book was released on 1984 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Microstructural Developments in Rapidly Solidified Tool Steel Powders written by Kumar Sridharan and published by . This book was released on 1984 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Relates the history and customs of Thanksgiving, from the harvest festivals of the ancient world and the first Thanksgiving in colonial America to today's celebrations.