Download or read book The Hardness of Certain Niobium base Alloys at Elevated Temperatures written by I. I. KORNILOV and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was made of the changes in the hardness of Nb and Nb alloys with temperature by the method of hot hardness. A series of Nb alloys were prepared from Nb (99.2%), Mo (99.9%), Zr (99.8%), Si(technical grade), Al (99.9%) and carbon by arc fusion. The specimens were remelted several times and homogenized in a TVV-2 vacuum furnace at 1600 C for 10 hr. Hardness measurements were carried out on a VIM-1 instrument under vacuum at 20, 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000 C. The impressing time of the diamond pyramid was 1 min. Three impressions were made on the specimen at each temperature. The diagonal of the impression was determined on a PMT-3 instrument for measuring microhardness. It was concluded that (1) Nb, like Ni, Fe, and Co can be hardened by alloying with components which form with it solid solutions with separation of the excess phase; (2) the method of hot hardness makes it possible to characterize the strength of alloys at elevated temperatures; and (3) multicomponent alloys with a high hardness at 1000 C require further investigation and testing for heat resistance by the standard method.

Download or read book Fundamental and Applied Research and Development in Metallurgy written by E. J. Rapperport and published by . This book was released on 1963 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High Temperature Niobium Alloys written by Minerals, Metals and Materials Society. Fall Meeting and published by Minerals, Metals, & Materials Society. This book was released on 1991 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physical and Mechanical Properties of Columbium and Columbium base Alloys written by E. S. Bartlett and published by . This book was released on 1960 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hardness Behavior of Binary and Ternary Niobium Alloys at 77 and 300 K written by Joseph R. Stephens and published by . This book was released on 1974 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Abstract Bulletin written by Defense Documentation Center (U.S.) and published by . This book was released on 1961-10 with total page 1540 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fundamental and Applied Research and Development in Metallurgy written by A. L. Geary and published by . This book was released on 1963 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Properties of Yttrium and the Rare Earth Metals written by Craig G. Kirkpatrick and published by . This book was released on 1962 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Government Research Reports written by and published by . This book was released on 1961 with total page 1064 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of High strength Niobium Alloys for Elevated temperature Applications written by John A. DeMastry and published by . This book was released on 1960 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975-04 with total page 1082 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The High temperature Nitridation Behavior of Niobium and Niobium base Alloys written by John Gerhard Keller and published by . This book was released on 1994 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of Some Niobium base Alloys written by Stan J. Paprocki and published by . This book was released on 1956 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High temperature Niobium base Alloys for Sodium cooled Reactors written by John A. DeMastry and published by . This book was released on 1961 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development and Properties of Uranium base Alloys Corrosion Resistant in High Temperature Water written by Melvin L. Bleiberg and published by . This book was released on 1957 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of pile irradiations on the physical properties and corrosion resistance of U-- Mo, U-- Nb; and U--Si alloys are reported. The dimensional stability under irradiation of the gamma phase U-- Mo and U-- Nb alloys is excellent; however, an isotropic volume increase of 4 to 6% per wt.% burnup may limit the ultimate fuel element life. Corrosion resistance of the gamma-phase alloys appesrs to be improved when subjected to s neutron field; this is attributed to an irrsdiation induced stabilization of the gamma phases. The U/ sub 3/Si alloy, on the other hand, suffered severe deterioration, particularly of corrosion resistance. Changes in electrical resistivity, hardness, mechanical properties, and crystal structure are presented and the mechanisms producing the observed changes discussed.

Download or read book Technical Translations written by and published by . This book was released on 1961 with total page 1228 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA Technical Translation written by and published by . This book was released on 1971 with total page 1254 pages. Available in PDF, EPUB and Kindle. Book excerpt: