Download or read book An Investigation of the Crack propagation Resistance of High strength Alloys and Heat resistant Alloys Jan 22 1962 written by Southern Research Institute and published by . This book was released on 1962 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Investigation of the Crack propagation of High Strength Alloys and Heat Resistant Alloys written by J. D. Morrison and published by . This book was released on 1962 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was made to determine the crack-propagation resistance of super-alloy and refractory-metal sheet materials and to investigate certain aspects of the elevated-temperature mechanical behavior of high-strength low-alloy steels. Sheet specimens containing central transverse fatigue cracks were used in the experimental work. It was found that the fracture toughness of the nickel-base alloys-Rene' 41, Nimonic 90, Inconel-X and Unitemp 1753-decreased slightly in the temperature range from about 1000 to 1400 F, in which temperature range there were generally increases in ultimate tensile strength and decreases in tensile elongation. The alloys A286 (iron bases) and L606 (cobalt base) did not show this brittleness tendency. Among the refractory metals, unalloyed molybdenum was found to have a brittle-ductile transition temperature of about 150 F; the molybdenum alloys-Mo-1/2%Ti and TZM- both had transition temperatures of about 65 F. Unalloyed tungsten sheet, containing sharp notches rather than fatigue cracks, showed an increasing tendency to brittleness below about 500 F.

Download or read book An Investigation of the Crack propagation Resistance of High strength Alloys and Heat resistant Alloys written by W. R. SALZMAN and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: Attempts were made to produce fatigue cracks in centrally notched tungsten sheet specimens. It has not been possible to fatigue crack tungsten sheet specimens at ambient temperatures. All of the attempts to fatigue crack tungsten have in volved cyclic stressing at elevated temperatures. (Author).

Download or read book Stress corrosion Cracking in High Strength Steels and in Titanium and Aluminum Alloys written by Benjamin Floyd Brown and published by . This book was released on 1972 with total page 390 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 1964 with total page 1330 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Investigation of Methods for Determining the Crack propagation Resistance of High strength Alloys written by J. D. MORRISON and published by . This book was released on 1961 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: Attempts were made to: (1) devise a simple crack-propagation specimen for evaluating high-strength sheet materials, (2) determine the crack-propagation characteristics of several high-strength sheet materials, (3) determine the effects of several experimental variables on the crack-propagation characteristics of some of these materials, and (4) determine the validity of the crack-propagation specimen for predicting the biaxial strength of the high-strength sheet materials. A sheet specimen called the shear-cracked specimen with a central transverse crack or notch produced by means of a simple punch-anddie fixture was devised. The crack-propagation properties obtained with the shear-cracked specimen were very similar to those obtained with fatigue-cracked specimens of the quench-hardenable and age-hardenable materials. The sheet-type crack-propagation specimen may be useful in predicting the biaxial strength of materials heat treated to very high strength levels (in excess of about 250,000 psi). At lower nominal strength levels, the crack-propagation specimen is apparently too severe a criterion.

Download or read book Summary Technical Report on an Investigation of Methods for Determining the Crack propagation Resistance of High Strength Alloys written by Southern Research Institute and published by . This book was released on 1961 with total page 110 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 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Guide to Annual Subject Index for Technical Publications Announcements Apr Dec 1962 written by United States. National Aeronautics and Space Administration and published by . This book was released on 1962 with total page 720 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 1318 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aerospace Structural Metals Handbook written by and published by . This book was released on 1989 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book NASA Technical Note written by and published by . This book was released on 1965 with total page 400 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 828 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 1962 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginning in 1962 issued in sections A and B.

Download or read book U S Government Research Reports written by and published by . This book was released on 1963 with total page 1322 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Effects on Materials Equipment written by and published by . This book was released on 1963 with total page 1014 pages. Available in PDF, EPUB and Kindle. Book excerpt: