Download or read book A New Internal Oxidation Process for Strengthening Tungsten written by Robert Blickensderfer and published by . This book was released on 1971 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A New Internal Oxidation Process for Strengthening Tungsten written by Robert Blickensderfer and published by . This book was released on 1971 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Strengthening Molybdenum by Powder Metallurgical Internal Oxidation of ZrMo2 written by W. L. O'Brien and published by . This book was released on 1974 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Temperature Oxidation Protection of Tungsten written by and published by . This book was released on 1969 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oxidation of Tungsten written by Vincent David Barth and published by . This book was released on 1961 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report presents a detailed review of available information on the oxidation of W and its alloys. W is relatively inert below 700 C. As the temperature is increased above this level, however, oxidation becomes progressively more rapid, reaching catastrophic rates at temperatures around 1200 C and above. Various theories for the mechanism and rates of W oxidation at different temperatures are reviewed, and the effect of pressure and water vapor on the stability of W oxides is discussed in detail. The elevatedtemperature reactions of W with other materials, such as refractory oxides, and with gases other than oxygen also are covered. Information on the protection of W by alloying and coating is included. (Author).
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1972 with total page 1472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oxidation of Tungsten and Tungsten Based Alloys written by E. A. Gulbransen and published by . This book was released on 1962 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1971 with total page 1478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dictionary Catalog of the Department Library written by United States. Department of the Interior. Library and published by . This book was released on 1969 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stockpile Report to the Congress written by and published by . This book was released on with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Temperature Oxidation Protection of Tungsten written by and published by . This book was released on 1969 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of Investigations written by and published by . This book was released on 1971 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrical and Hydraulic Flow Properties of Appalachian Petroleum Reservoir Rocks written by W. K. Sawyer and published by . This book was released on 1971 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dispersion Strengthening of Internally Oxidized Iron aluminum Alloys written by Mark I. Copeland and published by . This book was released on 1972 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of Investigations written by A. W. Decora and published by . This book was released on 1971 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Oxygen on Mechanical Properties of Tungsten written by Joseph R. Stephens and published by . This book was released on 1963 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of oxygen on the mechanical properties of commercial polycrystalline tungsten and zone-refined single-crystal tungsten was evaluated by means of tensile tests of oxygen-doped specimens in the ductile-to-brittle transition temperature range. The effect of oxygen as a surface oxide that might be encountered in normal working and forming operations was evaluated by means of a three-point loading bend test at room temperature. Oxygen doping of the polycrystalline and single-crystal tensile specimens was accomplished by equilibrating the specimen and tungsten oxide powder in a sealed tungsten capsule at high temperatures. A desired oxygen concentration could be achieved by varying the time of doping in the temperature range of 3000 to 3600 F. Results showed that the commercial recrystallized rods containing 4 parts per million (ppm) oxygen had a ductile-to-brittle transition temperature (based on 50-percent reduction in area) of 4500 F. Increasing the oxygen concentration to 10, 30, and 50 ppm increased the transition temperature to 6600, 840, and 1020 F, respectively. The oxygen additions also produced a progressive lowering of the ultimate tensile strength. The mechanism for the effect of oxygen on the transition temperature and ultimate tensile strength is believed to be that of segregation of the oxygen atoms at the grain boundaries. The oxygen additions also caused a progressive lowering of the yield strength, which is believed to result from the interaction of oxygen with carbon atoms or other impurity atoms present in the tungsten lattice.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1972 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
