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Stress Corrosion Cracking Susceptibility Of An Aluminum Alloy Used In External Fixation Devices Under Clinically Relevant Conditions
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Book Synopsis Stress Corrosion Cracking Susceptibility of an Aluminum Alloy Used in External Fixation Devices Under Clinically Relevant Conditions by : Jacob L. Cartner
Download or read book Stress Corrosion Cracking Susceptibility of an Aluminum Alloy Used in External Fixation Devices Under Clinically Relevant Conditions written by Jacob L. Cartner and published by . This book was released on 2006 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stress-corrosion Cracking of Aluminum Alloys by : Gunter Ogiermann
Download or read book Stress-corrosion Cracking of Aluminum Alloys written by Gunter Ogiermann and published by . This book was released on 1968 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report summarizes information from selected European papers and lectures that were published or presented between mid 1967 and July 1, 1968. Subjects discussed include: the nature of stress-corrosion, stress-corrosion in AlMg, AlMgZn, and AlMgSi alloys and testing for susceptibility to stress-corrosion cracking. (Author).
Book Synopsis Stress-corrosion Cracking of Aluminum Alloys by : J. D. Jackson
Download or read book Stress-corrosion Cracking of Aluminum Alloys written by J. D. Jackson and published by . This book was released on 1965 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stress-corrosion Cracking of Aluminum Alloys by : F. R. Mertens
Download or read book Stress-corrosion Cracking of Aluminum Alloys written by F. R. Mertens and published by . This book was released on 1967 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stress-corrosion Cracking in High Strength Steels and in Titanium and Aluminum Alloys by : Benjamin Floyd Brown
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 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Recommended Procedure for Assessing the Stress Corrosion Cracking Susceptibility of 5000-Series Aluminum Alloy Sheet by : C. T. Fujii
Download or read book A Recommended Procedure for Assessing the Stress Corrosion Cracking Susceptibility of 5000-Series Aluminum Alloy Sheet written by C. T. Fujii and published by . This book was released on 1972 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: A simple method has been developed for testing of stress-corrosion cracking susceptibility of 5000-series aluminum alloy sheet. This new method uses a wedge which is emplaced to provide a load on a precracked specimen. (Author).
Book Synopsis Stress-Corrosion and Corrosion-Fatigue Susceptibility of High-Strength Aluminum Alloys by : G. E. Nordmark
Download or read book Stress-Corrosion and Corrosion-Fatigue Susceptibility of High-Strength Aluminum Alloys written by G. E. Nordmark and published by . This book was released on 1970 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 'stress-corrosion-fatigue' performance of several high strength- aluminum alloys was investigated by tests of hydraulic cylinders and other types of specimens. Specimens were prepared from forgings and forging stock of alloys 2014-T6, 7075-T6, 7075-T73, 7079-T6, and X7080-T7 and from premium castings of alloy CH70-T7. Alloy 7075-T73 rated best in the corrosion-fatigue tests; no stress-corrosion cracking occurred in this alloy, and the lives of forged cylinders subjected to repeated loadings to 80% of design stress in a corrosive environment were at least 10 times as long for this alloy as for forged cylinders of alloys 2014-T6, 7075-T6, or 7079-T6. Fractographic examination showed that stress-corrosion cracking as well as fatigue cracking occurred in alloys 2014-T6, 7075-T6, and 7079-T6 in the stress-corrosion-fatigue tests. The investigation demonstrated that stress corrosion and fatigue can interact under certain conditions to produce failures in shorter times and fewer cycles than for either phenomenon occurring by itself.
Book Synopsis Stress Corrosion Cracking of Wrought and P/M High Strength Aluminum Alloys by : A. W. Thompson
Download or read book Stress Corrosion Cracking of Wrought and P/M High Strength Aluminum Alloys written by A. W. Thompson and published by . This book was released on 1986 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: The major findings from a comprehensive study on the role of microstructure on the susceptibility to environmental embrittlement of high strength aluminum alloys are presented and discussed. Most of the studies used commercial 7075, or a high purity equiaxed version, HP7075, or a similar powder version 7090. Through the innovative use of loading mode and straining electrode test, stress corrosion cracking was shown to be controlled by the introduction and internal distribution of hydrogen, particularly to grain boundaries. This was the case for the underaged and peak aged microstructures, with the latter being the most susceptible. The SCC behavior of the even more resistant overaged microstructure was shown to be controlled by anodic dissolution processes, predominantly associated with slip bands. Aluminum alloys were also shown to be susceptible to embrittlement under conditions of cathodic polarization correcting a widely held belief that concomitant anodic processes are required. Studies using controlled microstructures were able to rank the importance of different microstructural features to help develop alloy design strategies for more environmentally resistant alloys--the most effective features are those grain interior precipitates which promote fine, homogeneous slip either by reduced particle cutting or enhanced dislocation generation; fine, grain boundary precipitate free zones were found not to be very important, except in their role in reducing the local strength of the boundary region.
Book Synopsis Stress Corrosion Cracking Susceptibility of Aluminum-base Alloys 2195 and 2219 by : Abdulbaset Ali Frefer
Download or read book Stress Corrosion Cracking Susceptibility of Aluminum-base Alloys 2195 and 2219 written by Abdulbaset Ali Frefer and published by . This book was released on 1996 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Localised Corrosion and Stress Corrosion Cracking Susceptibility of a Dissimilar Aluminium Alloy Friction Stir Weld by :
Download or read book Localised Corrosion and Stress Corrosion Cracking Susceptibility of a Dissimilar Aluminium Alloy Friction Stir Weld written by and published by . This book was released on 2007 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stress Corrosion Cracking Properties of Two Aluminum-Magnesium Alloys by : F. D. Bogar
Download or read book Stress Corrosion Cracking Properties of Two Aluminum-Magnesium Alloys written by F. D. Bogar and published by . This book was released on 1974 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The SCC behavior of two Alcoa Al-Mg alloys -- a commercial alloy, 5456-H117, and an experimental alloy, N-H117, is described. These materials were studied in the as-received and aged conditions for susceptibility to cracking in 3.5% NaCl solution. Double cantilever beam specimens were machined from the one-inch thick plates of the two alloys in the SL, TL, and LT orientations. All of the specimens were fatigue pre-cracked to facilitate initiation of a 'pop-in' crack when bolt loaded to start the SCC tests. After three days immersion in the corrodent, the specimens were mechanically broken apart and the fracture surface examined for visual evidence of SCC. The as-received specimens were insensitive to SCC in these tests with the exception of one N-H117 specimen. All of the aged specimens of both alloys were susceptible to SCC. (Author).
Book Synopsis Stress Corrosion Susceptibility of Welded Aluminum Alloys by : Richard F. Turley
Download or read book Stress Corrosion Susceptibility of Welded Aluminum Alloys written by Richard F. Turley and published by . This book was released on 1967 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: The program determined threshold stress levels for 2014-T6, X2021-T8E31, 2024-T81, 2219-T87, X7002-T6, 7039-T64, and 7106-T6. Variables were sheet and plate, long transverse grain direction, welded and post-weld heat treated, notched and unnotched. Tests were conducted using step load and constant load 500 hours alternate immersion in synthetic sea water at sustained stress levels up to 75-percent yield strength. All basic, unwelded alloys, sheet and plate, had thresholds above 75-percent yield strength. Thresholds for unnotched sheet alloys were below 75-percent yield strength for 2014-T6, as welded (W), weld + age (A) and weld + solution heat treat + age (S), X2021-T8E31 (W), 2024-T81 (W), 2219-T87 (S), 7039-T64 (S) and 7106-T6 (A) (S). The most susceptible to stress corrosion cracking was X2021-T8E31 (W). A fatigue crack at the edge of the weld bead caused increased susceptibility to stress corrosion for several of the sheet alloy-weld-tempers. For unnotched plate product, stress corrosion cracking was incurred for only 2014-T6 (S) and 7039-T64 (S) below 75-percent yield strength; this was at higher stress levels than the (W) and (A) tempers tested. A fatigue crack at the edge of the weld bead caused severe susceptibility to stress corrosion cracking for plate alloys, X-2021-T8E31 (S), 7039-T64 (S) and 2014-T6 (S). An Engineering Data Materials Matrix is presented. Stress corrosion cracking typically initiated at the edge of the weld bead and progressed along the fusion line branching into the weld bead and heat affected zone. (Author).
Book Synopsis Mechanisms of Stress-Corrosion Cracking and Liquid-Metal Embrittlement, Particularly in High-Strength Aluminium Alloys by : S. P. Lynch
Download or read book Mechanisms of Stress-Corrosion Cracking and Liquid-Metal Embrittlement, Particularly in High-Strength Aluminium Alloys written by S. P. Lynch and published by . This book was released on 1977 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metallographic and fractographic observations of sub-critical crack growth in a precipitation-hardened AlZn-Mg alloy in liquid-metal, aqueous, and water-vapour/air environments suggest that stress-corrosion cracking and liquid-metal embrittlement in this alloy involve a common mechanism. Sub-critical crack growth in all these environments can produce entirely dimpled fracture surfaces and, in liquid-metal and aqueous environments, crack growth can occur extremely rapidly. It is proposed that stress-corrosion cracking and liquid-metal embrittlement in aluminium alloys (and possibly other materials) can be explained on the basis that chemisorption of environmental species facilitates nucleation of dislocations at crack tips. Such a process would produce sub-critical crack growth with less blunting at crack tips than in inert environments and, hence, would explain observations that dimples on fracture surfaces after SCC are smaller and shallower than those on overload fractures. The results suggest that neither dissolution nor hydrogen-embrittlement processes occurred during stress-corrosion cracking in aluminium alloys. (Author).
Book Synopsis STUDY OF STRESS-CORROSION CRACKING OF ALUMINUM ALLOYS. by :
Download or read book STUDY OF STRESS-CORROSION CRACKING OF ALUMINUM ALLOYS. written by and published by . This book was released on 1967 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: A further clarification of the mechanism of stress-corrosion cracking in 7075 aluminum alloy was obtained, particularly with regard to the role of dislocations in the mechanism and to the relationship between dislocation mobility and susceptibility to stress-corrosion cracking; high dislocation mobility reduces susceptibility. It was demonstrated during stress-corrosion tests on 7075-T73 specimens that had undergone prior plastic deformation, that the introduction of dislocations alone did not lower the dislocation mobility sufficiently to diminish the stress-corrosion resistance. This is in contrast to similar experiments with -T6 specimens, wherein precipitation was induced by similar deformation and the mobility was reduced sufficiently to lower the stress-corrosion resistance. An important role for immobilized dislocations was also suggested by a theoretical calculation of the stress field around an edge dislocation which neighbors a grain boundary precipitate. This calculation, which was based only on elasticity theory and thus precluded plastic flow, indicated that a large tensile stress, theoretically as high as 250,000 psi, could act normal to the precipitate-matrix interface. When the capacity for plastic flow (i.e., the dislocation mobility) was intentionally reduced by notching a stress-corrosion specimen, a rapid failure could be induced in normally resistant 7075-T73 alloy.
Book Synopsis Deformation Substructure and Susceptibility to Intergranular Stress Corrosion Cracking in an Aluminium Alloy by : H.A. Holl
Download or read book Deformation Substructure and Susceptibility to Intergranular Stress Corrosion Cracking in an Aluminium Alloy written by H.A. Holl and published by . This book was released on 1966 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Stress Corrosion Cracking of a Non-age-hardenable Aluminum Alloy by : Richard Glen Weber
Download or read book The Stress Corrosion Cracking of a Non-age-hardenable Aluminum Alloy written by Richard Glen Weber and published by . This book was released on 1969 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stress Corrosion Cracking of Aluminum Alloys by : David Eric Ward
Download or read book Stress Corrosion Cracking of Aluminum Alloys written by David Eric Ward and published by . This book was released on 1971 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
