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The Application Of Ultrasonic Techniques To The Study Of Plastic Deformation In Metal Single Crystals
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Book Synopsis The Application of Ultrasonic Techniques to the Study of Plastic Deformation in Metal Single Crystals by : E. W. Ray
Download or read book The Application of Ultrasonic Techniques to the Study of Plastic Deformation in Metal Single Crystals written by E. W. Ray and published by . This book was released on 1956 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Recovery of the Ultrasonic Attenuation in Copper Single Crystals Following Small Plastic Deformation by : Julius Frankel
Download or read book The Recovery of the Ultrasonic Attenuation in Copper Single Crystals Following Small Plastic Deformation written by Julius Frankel and published by . This book was released on 1962 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: When a metal undergoes small plastic deformation, there is a change in its apparent Young's Modulus and internal friction. Both of these quantities recover following the deformation. This experiment was made to study the decrease of ultrasonic attenuation in copper single crystals following small plastic deformation. The change in the attenuation of an ultrasonic wave in a stressed single crystal does not take place smoothly. This work indicates that more than one recovery process is involved, and that the most clearly measured process has an activation energy of 1.5ev.
Book Synopsis Ultrasonic Methods in the Study of Deformation in Single Crystals by : Bruce Chick
Download or read book Ultrasonic Methods in the Study of Deformation in Single Crystals written by Bruce Chick and published by . This book was released on 1964 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the investigation was that of understanding the physical changes which occur in aluminum and in certain ionic crystals during and after deformation. The investigation involved the study of imperfection behavior generally, and specifically the interaction of point defects with moving and vibrating dislocations, as well as the contribution of dislocations to the anharmonic characteristics of solids. (Author).
Book Synopsis Ultrasonic Attenuation in Zinc Single Crystals While Undergoing Plastic Deformation by : George Armand Alers
Download or read book Ultrasonic Attenuation in Zinc Single Crystals While Undergoing Plastic Deformation written by George Armand Alers and published by . This book was released on 1954 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis ULTRASONIC METHODS IN THE STUDY OF FATIGUE AND DEFORMATION IN SINGLE CRYSTALS. by :
Download or read book ULTRASONIC METHODS IN THE STUDY OF FATIGUE AND DEFORMATION IN SINGLE CRYSTALS. written by and published by . This book was released on 1963 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of ultrasonic methods (and in some cases electrical conductivity measurements) for studying defect formation and motion in connection with deformation and stress cling experiments in aluminum and sodium chloride single crystals is the subject. Recovery in aluminum single crystals at 195 K was compared with recovery at room temperature and an interesting 'threshold effect' was observed; there appears to be a level of deformation which must be exceeded at this temperature before recovery occurs. The automatic recording time echo (or velocity) measurement unit was designed to measure the time between two successive echoes in a pulse echo train with a sensitivity of one nanosecond out of one hundred microseconds and to record the measurement as a voltage capable of driving a recorder so that dynamic changes in time will produce a record. It was found that no change in center frequency or bandwidth is seen over a 40 db range of gain control nor does an artificial change of 40 db in signal level produce a detectable change in measured time.
Book Synopsis Study on Dislocation-Dopant Ions Interaction During Plastic Deformation by Combination Method of Strain-Rate Cycling Tests and Application of Ultrasonic Oscillations by : Yohichi Kohzuki
Download or read book Study on Dislocation-Dopant Ions Interaction During Plastic Deformation by Combination Method of Strain-Rate Cycling Tests and Application of Ultrasonic Oscillations written by Yohichi Kohzuki and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Strain-rate cycling tests associated with the ultrasonic oscillation were conducted for the purpose of investigation on the interaction between dislocation and dopant ions during plastic deformation of seven kinds of single crystals: NaCl doped with Li+, K+, Rb+, Cs+, F,àí, Br,àí or I,àí ions separately. Relative curves between the stress decrement (ŒîœÑ) due to ultrasonic oscillatory stress and strain-rate sensitivity (Œa) of flow stress under superposition of the oscillation are obtained by the original method (combination method of strain-rate cycling tests and application of ultrasonic oscillations) at 77¬†K to room temperature and have stair-like shapes for the specimens at low temperatures. The Gibbs free energy for overcoming of the dopant ion by dislocation at absolute zero is calculated from the data analyzed in terms of ŒîœÑ vs. Œa. As a result, the obtained energies are found to be varied linearly with the isotropic defect around it in the each specimen.
Book Synopsis Single Crystal Plasticity: Experimental studies of the plastic deformation of single crystals, by Lawrence Malvern by : Louis Gold
Download or read book Single Crystal Plasticity: Experimental studies of the plastic deformation of single crystals, by Lawrence Malvern written by Louis Gold and published by . This book was released on 1948 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ultrasonic Methods in the Study of Deformation in Single Crystals by :
Download or read book Ultrasonic Methods in the Study of Deformation in Single Crystals written by and published by . This book was released on 1964 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the investigation was that of understanding the physical changes which occur in aluminum and in certain ionic crystals during and after deformation. The investigation involved the study of imperfection behavior generally, and specifically the interaction of point defects with moving and vibrating dislocations, as well as the contribution of dislocations to the anharmonic characteristics of solids. (Author).
Book Synopsis Ultrasonic Studies of Dislocation Dynamics and of the Deformation of Solids by : Akira Hikata
Download or read book Ultrasonic Studies of Dislocation Dynamics and of the Deformation of Solids written by Akira Hikata and published by . This book was released on 1967 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report consists of two parts, (1) plastic deformation of gallium single crystals, (2) amplitude dependence of ultrasonic attenuation in lead single crystals. In the case of gallium, it is found that the dislocations do not contribute to the attenuation of ultrasonic waves of 10 Mc/sec or higher frequencies, despite the fact that the gallium crystals undergo plastic deformation with well defined dislocation glide. This phenomenon is quite in contrast to that observed in other metal single crystals such as aluminum, and is tentatively attributed to the large frictional resistance against the high velocity motion of dislocations. In the case of lead, large amplitude-dependent attenuation is observed at low temperatures. At 4.2K, a maximum in attenuation as a function of ultrasonic amplitude is found. From this attenuation maximum, it is possible to reduce the values of the electron contribution to the damping constant and of the interaction force between point defects and dislocations. (Author).
Book Synopsis The Application of Ultrasonic Energy in the Deformation of Metals by : Alan R. Rosenfield
Download or read book The Application of Ultrasonic Energy in the Deformation of Metals written by Alan R. Rosenfield and published by . This book was released on 1963 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: On June 21 a symposium was sponsored by the Bureau of Naval Weapons on the application of ultrasonic energy in the deformation of metals. At this session, a number of investigators actively working in the field reported informally on the results of their research. The reports revealed that the results achieved by incorporating ultrasonic transducers into conventional metalforming and-cutting operations are sufficiently promising that the technique merits further attention. Data are available to indicate that application of ultrasonic vibrations during metal working can increase speeds, lower forces, and improve surface finishes. All of these results have been obtained without any observed difference in properties between ultrasonically and conventionally fabricated parts. (Author).
Book Synopsis Study of Localized Plastic Deformation of Hadfield Steel Single Crystals Using Speckle Photography Technique by :
Download or read book Study of Localized Plastic Deformation of Hadfield Steel Single Crystals Using Speckle Photography Technique written by and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study of the Plastic Deformation of Single Crystals of Sodium Chloride by : Hawthorne Antoine Davis
Download or read book A Study of the Plastic Deformation of Single Crystals of Sodium Chloride written by Hawthorne Antoine Davis and published by . This book was released on 1960 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis U.S. Government Metalworking Processes and Equipment Program by : F. C. Holden
Download or read book U.S. Government Metalworking Processes and Equipment Program written by F. C. Holden and published by . This book was released on 1964 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: A summary is given of the status of the various contracts involved in the U.S. Government's Metalworking Processes and Equipment Program. (Author).
Book Synopsis Investigations and Applications of Severe Plastic Deformation by : Terry C. Lowe
Download or read book Investigations and Applications of Severe Plastic Deformation written by Terry C. Lowe and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Material processing techniques that employ severe plastic deformation have evolved over the past decade, producing metals, alloys and composites having extraordinary properties. Variants of SPD methods are now capable of creating monolithic materials with submicron and nanocrystalline grain sizes. The resulting novel properties of these materials has led to a growing scientific and commercial interest in them. They offer the promise of bulk nanocrystalline materials for structural; applications, including nanocomposites of lightweight alloys with unprecedented strength. These materials may also enable the use of alternative metal shaping processes, such as high strain rate superplastic forming. Prospective applications for medical, automotive, aerospace and other industries are already under development.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1985 with total page 1346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Theses and Dissertations Accepted for Higher Degrees by : University of London
Download or read book Theses and Dissertations Accepted for Higher Degrees written by University of London and published by . This book was released on 1956 with total page 120 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 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
