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| Author | : Carol Alnoth Krier |
| Publisher | : |
| Total Pages | : 248 |
| Release | : 1961 |
| Genre | : Heat resistant alloys |
| ISBN | : |
| Author | : W. A. Gibeaut |
| Publisher | : |
| Total Pages | : 104 |
| Release | : 1964 |
| Genre | : Heat resistant alloys |
| ISBN | : |
This report summarizes the information generated since the middle of 1961 on the chemical, physical, and mechanical properties of refractory metals that are coated with oxidation-resistant coatings of advanced-experimental or commercial status. It is a supplement to DMIC Report 162, Coatings for the Protection of Refractory Metals from Oxidation, dated November 24, 1961. Recent data on specific silicide- and aluminide- type coatings for columbium, molybdenum, tantalum, and tungsten and their alloys reflect general advances in coating quality and performance, understanding of the behavior of coated systems, and more complete realization of the problems associated with the use of coated hardware.
| Author | : National Research Council (U.S.). Committee on Coatings |
| Publisher | : National Academies |
| Total Pages | : 246 |
| Release | : 1970 |
| Genre | : Technology & Engineering |
| ISBN | : |
| Author | : William D. Klopp |
| Publisher | : |
| Total Pages | : 10 |
| Release | : 1961 |
| Genre | : Heat resistant alloys |
| ISBN | : |
| Author | : B. F. Brown |
| Publisher | : |
| Total Pages | : 34 |
| Release | : 1961 |
| Genre | : Metallurgy |
| ISBN | : |
| Author | : B. F. Brown |
| Publisher | : |
| Total Pages | : 46 |
| Release | : 1960 |
| Genre | : |
| ISBN | : |
The vapor pressure of each of the niobium-zinc compounds was measured as a function of temperature. The kinetics of formation of the niobiumzinc compounds on pure niobium from zinc vapor were investigated, and oxidation tests were made on several coatings applied with zinc vapor. The mechanisms involved and the kinetics of the removal of interstitial impurities from niobium by the niobium-zinc compounds were also studied. Further studies of the effects of alloying elements added to the zinc bath used to coat niobium by the dip process confirmed that small amounts of nickel and aluminum in the proper combination are beneficial. (Author).
| Author | : W. A. Gibeaut |
| Publisher | : |
| Total Pages | : 26 |
| Release | : 1963 |
| Genre | : Coatings |
| ISBN | : |
Four coating processes have been scaled up to coat components of aerospace vehicles: (1) slurry, (2) atmospheric-pressure pack cementa tion, (3) vacuum pack cementation, and (4) fluidized bed. The principal advantage of the slurry process is its ability to coat limited access areas such as the interior channels of built-up corrugated panels. This makes the process ideal for coating spot-welded corrugated panels after they have been welded. The other three coating processes, which are vapor-deposi tion processes, are not so suitable for coating limited-access areas. When they are used for parts such as built-up corrugated panels, the individual parts (including rivets) are coated, then riveted together, and then the entire assembly is recoated. This shortcoming is off set by the fact that the coatings applied by the vapor-deposition processes are more protective at higher temperatures than are the slurry coatings.
| Author | : John G. Beach |
| Publisher | : |
| Total Pages | : 32 |
| Release | : 1959 |
| Genre | : Electroplating |
| ISBN | : |
| Author | : National Research Council |
| Publisher | : National Academies Press |
| Total Pages | : 102 |
| Release | : 1996-05-13 |
| Genre | : Technology & Engineering |
| ISBN | : 0309176026 |
This book assesses the state of the art of coatings materials and processes for gas-turbine blades and vanes, determines potential applications of coatings in high-temperature environments, identifies needs for improved coatings in terms of performance enhancements, design considerations, and fabrication processes, assesses durability of advanced coating systems in expected service environments, and discusses the required inspection, repair, and maintenance methods. The promising areas for research and development of materials and processes for improved coating systems and the approaches to increased coating standardization are identified, with an emphasis on materials and processes with the potential for improved performance, quality, reproducibility, or manufacturing cost reduction.
| Author | : E. M. Savitskii |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 296 |
| Release | : 2012-12-06 |
| Genre | : Technology & Engineering |
| ISBN | : 1468415727 |
The principal reasons which induced the authors to write this book and the features of the book are set forth in the preface to the Russian edition. That section of the science of metals which in Russian is called "metallovedenie" or the "physical chemistry of metals" is generally referred to in scientific and technical literature published in the English language by the term "physical metallurgy." These concepts are much broader than the term" metallography," used in the scientific and technical literature of various countries, and applied solely to research on the interrelationships of the structure and proper ties of metals and alloys. Each science must have its own subject and its own method of research. Certainly, all specialists will agree that metals and alloys, including their solid solutions, mechanical mix tures, and metallic compounds, form the subject of "physical metallurgy" or "physical chemis try of metals." The aim of this science. is to produce a theory and to elucidate the experimental relationships which ought finally to make it possible to calculate quantitatively alloys Of given properties for any working conditions and parameters.
