Download or read book The Effects of Solutes on the Ductile to brittle Transition of Refractory Metals written by George T. Hahn and published by . This book was released on 1962 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: There appear to be two ways in which interstitials promote brittle behavior in Groups V-A and VI-A refractory metals: (1) By locating at the grain boundaries in the form of segregates of precipitates, promoting grain-boundary rupture and crack initiation; and (2) In solid solution by inhibiting dislocation movement and reducing the resistance to crack propagation. Both embrittling effects operate in Group VI-A metals; whereas, only the latter is significant in the Group V-A at the levels of purity currently achieved. The problem of reducing the low-temperature brittleness of Group V-A metals is readily solved through the purity route. Purification of Group V-A metals to interstitial levels well below the solubility limits may be readily accomplished either in the initial purification of the base metal or during melting or consolidation. There are three possible routes to solving the problem of the embrittling effect of interstitials on the Group VI-A metals: (1) the purity route, (2) through working, and (3) through alloying (thermodynamically through strong scavengers, by additions which modify the electron bonding, and via grain-refining dispersions). (Author).
Download or read book Ductile brittle Transition in the Refractory Metals written by F. R. Schwartzberg and published by . This book was released on 1959 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Note written by and published by . This book was released on 1973 with total page 524 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 1962 with total page 1170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Properties of Refractory Metals written by Walter D. Wilkinson and published by . This book was released on 1969 with total page 380 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 1974 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Summary of the Second and Third Technical Briefings on Refractory Metal Alloy Structural Fasteners written by W. S. Hyler and published by . This book was released on 1962 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Crerar Metals Abstracts written by and published by . This book was released on 1962 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fracture of Metals written by H. Liebowitz and published by Elsevier. This book was released on 2013-10-22 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fracture of Metals is part of a multivolume treatise that brings together the fundamentals for critical evaluation of the different theories and experimental findings on brittle fracture. These results, together with their design implications, should be made available to professional engineers, students, and researchers in industrial organizations, educational and research institutions, and various governmental agencies. Seven major areas are covered in this treatise on fracture. They are: (1) microscopic and macroscopic fundamentals of fracture; (2) mathematical fundamentals of fracture; (3) engineering fundamentals of fracture and environmental effects; (4) engineering fracture design; (5) fracture design of structures; (6) fracture of metals; and (7) fracture of nonmetals and composites. The present volume focuses on the fracture of metals. The book opens with chapter on the influence of alloying elements on fracture behavior in metallic systems of the three common crystal structures: face-centered cubic, body-centered cubic, and hexagonal close packed. Separate chapters follow on the principal microstructural factors which seem to be important for fracture toughness; the nature of the fracture processes occurring in high-strength materials; and the state of knowledge on fracture toughness of structural steels. Subsequent chapters deal with the strength and toughness of hot-rolled, ferrite-pearlite steels; fracture behavior of aluminum and its alloys; and fracture phenomena associated with electrical effects.
Download or read book ASM Specialty Handbook written by Joseph R. Davis and published by ASM International. This book was released on 1997-01-01 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Materials covered include carbon, alloy and stainless steels; alloy cast irons; high-alloy cast steels; superalloys; titanium and titanium alloys; refractory metals and alloys; nickel-chromium and nickel-thoria alloys; structural intermetallics; structural ceramics, cermets, and cemented carbides; and carbon-composites.
Download or read book Refractory Metals and Alloys II written by M. Semchyshen and published by . This book was released on 1963 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Refractory Metal Alloys Metallurgy and Technology written by I. Machlin and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Review of Ductilizing of Group VIA Elements by Rhenium and Other Solutes written by William D. Klopp and published by . This book was released on 1968 with total page 42 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 1959 with total page 788 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 1963 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Publications Announcements with Indexes written by United States. National Aeronautics and Space Administration and published by . This book was released on 1962 with total page 1556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Effects on Materials and Equipment written by and published by . This book was released on 1963 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt:
