Aging Phenomena in Columbium-base Alloys - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Aging Phenomena in Columbium-base Alloys write by D. O. Hobson. This book was released on 1962. Aging Phenomena in Columbium-base Alloys available in PDF, EPUB and Kindle.
Investigation of Precipitates in Two Carbon-containing Columbium-base Alloys
Investigation of Precipitates in Two Carbon-containing Columbium-base Alloys - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Investigation of Precipitates in Two Carbon-containing Columbium-base Alloys write by F. Ostermann. This book was released on 1966. Investigation of Precipitates in Two Carbon-containing Columbium-base Alloys available in PDF, EPUB and Kindle. The precipitates in the commercial columbium alloys D-31 and D-43 were investigated after various heat treatments. The titanium-rich and zirconium-rich monocarbides are the only stable precipitate phases in alloys D-31 and D-43, respectively. The temperatures for complete solid solution are 1600C for alloy D-31 and 1700C for alloy D-43 corresponding to a carbon content of about 0.09 wt.-%. Non-equilibrium columbium carbides precipitate even during quenching from solid solution, so that no appreciable carbon supersaturation can be achieved in columbium alloys. During aging, the stable monocarbides form at the expense of the non-equilibrium columbium carbides but not from solid solution. Therefore, age-hardening caused by stable MC-phase precipitation does not occur. The effect of oxygen on carbide precipitates was investigated by increasing the oxygen concentration of the alloys on purpose. Oxygen behaved differently in both alloys with respect to precipitate phases. A columbium carbide phase with unknown lattice structure but a composition corresponding approximately to Cb3C2 was found in both alloys after suitable heat treatments.
A Preliminary Study of the Aging Behavior of Wrought Columbium-1% Zirconium Alloys
A Preliminary Study of the Aging Behavior of Wrought Columbium-1% Zirconium Alloys - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook A Preliminary Study of the Aging Behavior of Wrought Columbium-1% Zirconium Alloys write by David O. Hobson. This book was released on 1961. A Preliminary Study of the Aging Behavior of Wrought Columbium-1% Zirconium Alloys available in PDF, EPUB and Kindle.
Publications, Reports, and Papers for 1961- from Oak Ridge National Laboratory
Publications, Reports, and Papers for 1961- from Oak Ridge National Laboratory - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Publications, Reports, and Papers for 1961- from Oak Ridge National Laboratory write by Oak Ridge National Laboratory. This book was released on 1964. Publications, Reports, and Papers for 1961- from Oak Ridge National Laboratory available in PDF, EPUB and Kindle.
Refractory Metal Alloys Metallurgy and Technology
Refractory Metal Alloys Metallurgy and Technology - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Refractory Metal Alloys Metallurgy and Technology write by I. Machlin. This book was released on 2012-12-06. Refractory Metal Alloys Metallurgy and Technology available in PDF, EPUB and Kindle. This publication documents Proceedings of the Symposium on Metal lurgy and Technology of Refractory Metal Alloys, held in Washington, D.C. at the Washington Hilton Hotel on April 25-26, 1968, under sponsorship of the Refractory Metals Committee, Institute of Metals Division, of the Metallurgical Society of AIME, and the National Aeronautics and Space Administration. The Symposium presented critical reviews of selected topics in refractory metal alloys, thereby contributing to an in-depth understanding of the state-of-the-art, and establishing a base line for further research, development, and application. This Symposium is fifth in a series of conferences on refractory metals, sponsored by the Metallurgical Society of AlME. Publications issuing from the conferences are valuable technical and historical source books, tracing the evolution of refractory metals from early laboratory alloying studies to their present status as useful engineering materials. Refractory metals are arbitrarily defined by melting point. A 0 melting temperature of over 3500 F was selected as the minimum for this Symposium, thus excluding chromium and vanadium, which logically could be treated with other refractory metals in Groups VA and VIA of the periodic table. The Refractory Metals Committee is planning reviews of chromium and vanadium in subsequent conferences.
