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Tuesday, July 14, 2020 | History

2 edition of Elastic constants of polycrystalline vanadium-iron alloys found in the catalog.

Elastic constants of polycrystalline vanadium-iron alloys

by John Joesph Donegan

  • 150 Want to read
  • 7 Currently reading

Published by Naval Postgraduate School in Monterey, California .
Written in English

    Subjects:
  • Physics

  • ID Numbers
    Open LibraryOL25327740M

    Shape-memory alloys, such as Ni-Ti and Cu-Zn-Al, show a large reversible strain of more than several percent due to superelasticity. In particular, the Ni-Ti–based alloy, which exhibits some ductility and excellent superelastic strain, is the only superelastic material available for practical applications at present. We herein describe a ferrous polycrystalline, high-strength, shape-memory Iron-cobalt-vanadium alloys: A critical study of the phase diagrams in relation to magnetic properties Abstract: A tentative explanation of some physical, magnetic, and mechanical properties in magnetically soft or semihard Fe-Co-V alloys is proposed in the light of present knowledge of their structural ://

    Iron substitution for magnesium in carbonates decreases the shear modulus and increases Poisson's ratio. The bulk modulus, however, changes relatively little with iron substitution. Manganese substitution, in carbonates affects the velocities and elastic parameters in much the same way as :// Elastic and thermoelastic properties of a statistically isotropic heterogeneous medium S C Lakkad, B B Miatt and B Parsons Elastic moduli of polycrystalline Si and Ge E Borchi, S De Gennaro, R Macii et al. Anisotropy in elastic properties of TiSi2 (C49, C40 and C54), TiSi and Ti5Si3: an ab-initio density functional study Manish K

    Calculation of Effective Elastic Constants for Polycrystalline Materials p Magnetostrictive Ni-Base Alloys Sheets with Strong Cubic Texture p The Biaxial Strength and Ductility of Textured Materials p Texture and Corrosion Property in the Hopeite Crystal Coated Steel   Development and modeling of iron-gallium alloys Rick Allen Kellogg Iowa State University Follow this and additional works at: Single-crystal tensile test were used to determine the material's elastic constants, yield stress, polycrystalline Fe^Ga^ has been shown to endure tensile stresses up to MPa with ?article=&context=rtd.


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Elastic constants of polycrystalline vanadium-iron alloys by John Joesph Donegan Download PDF EPUB FB2

Thesis/Dissertation: Elastic constants of polycrystalline vanadium--iron alloys Title: Elastic constants of polycrystalline vanadium--iron alloys Full Record Elastic constants of polycrystalline vanadium-iron alloys [John Joseph, Jr Donegan] on *FREE* shipping on qualifying :// Buy Elastic constants of polycrystalline vanadium-iron alloys Reprint Edition by Donegan, John Joseph, Jr (ISBN:) from Amazon's Book Store.

Everyday low prices and free delivery on eligible :// An illustration of an open book. Books. An illustration of two cells of a film strip.

Video. An illustration of an audio speaker. Audio. An illustration of a " floppy disk. Elastic constants of polycrystalline vanadium-iron alloys. Item Preview remove-circle Share or Embed This ://   ElasticConstantsofPolycrystalline Vanadium-IronAlloys by JohnJosephDonegan,Jr.

LieutenantCommander,UnitedStatesNavy B.S.,UnitedStatesNavalAcademy   ELASTIC CONSTANTS OF VANADIUM IRON-ALLOYS* JOHN J. DONEGAN Jr+ and JOHN R. NEIGHBOURS f Polycrystalline alloys of iron in vanadium up to at.% were prepared principally by arc melting.

Longitudinal and shear ultrasonic measurements in the MHz range were made at room :// Noté /5. Retrouvez Elastic constants of polycrystalline vanadium-iron alloys et des millions de livres en stock sur Achetez neuf ou d'occasion Elastic properties of metals and alloys: Iron, nickel, and iron-nickel alloys (Journal of physical and chemical reference data: reprint) [Ledbetter, H.

M] on *FREE* shipping on qualifying offers. Elastic properties of metals and alloys: Iron, nickel, and iron-nickel alloys (Journal of physical and chemical reference data: reprint)   However, measurements made on an iron-nickel alloy (22) indi­ cated only a small increase in elastic anisotropy as the Mg was approached.

This would seem to indicate that high aniso-tropy establishes a sufficient but not a necessary condition for lattice instability. The elastic constants of the parent austenite phase are valuable in ?article=&context=rtd. IJRRAS 6 (4) March Tromans Elastic Anisotropy of Hcp Metal Crystals and Polycrystals The physical meaning of each C ijkl is obtained by considering a set of applied stress components where all components of strain vanish except for either one normal component or a pair of shear :// The composition dependence of the room tempera- ture elastic constants and i(C'n 0'ia) for iron- aluminum alloys.

The iron values shown were reported by the following authors: ^ _J. Rayne and B. Chandrasekhar'31' D ->- A. Lord, Jr. and D. Beshers'30' 0 ->-R. Truell'32' ACTA METALLFRGICA, VOL.

15, the elastic stiffness   A comprehensive compilation is given of elastic properties of iron‐nickel alloys. When sufficient data exist, preferred values are recommended.

This compilation covers, besides pure iron and pure nickel, the entire binary composition range, both b.c.c. and f.c.c. phases. Elastic constants included are: Young's modulus, shear modulus, bulk modulus (reciprocal compressibility), Poisson's ratio   the elastic constants from single crystal measurements by a re- gression and a Finite Element (FE) method is shown in this paper to be very accurate.

A new regression method allows the deter- mination of single crystal elastic constants from strongly textured ://   Vanadium processing - Vanadium processing - The metal and its alloys: In its pure form, vanadium is soft and ductile.

It can be fabricated into mill forms, but it oxidizes readily at temperatures above ° C (1,° F) and is liable to pick up interstitial impurities. Because the metal has good corrosion resistance to liquid metal, a low absorption of neutrons, and a short half-life in its USB2 US09/, USA USB2 US B2 US B2 US B2 US A US A US A US B2 US B2 US B2 Authority US United States Prior art keywords alloy fe sm sheet alloys Prior art date Legal status (The legal status is an assumption and is not a legal ://   waves are different in different directions and are determined by the elastic constants of the solid.

The number of elastic constants, in the simplest case of an isotropic substance is two. In the most general case of a single crystal belonging to the triclinic system, the number required to describe the elastic properties completely is ://   Single crystal elasticity and effective elastic behaviour Table 1.

Elastic constants (GPa). BaTiO3 BaTiO3 In ZrSiO4 cubic tetragonal tetragonal tetragonal c11 c12 82 70 c44 c33 — c13 — c66 — The components of the fourth-order elasticity tensor with respect to the rotated frame A method for measuring the elastic properties of a material even with a less than perfect sample is demonstrated by scientists in the USA.

Xinpeng Du and Ji-Cheng (J.C.) Zhao from The Ohio State The Young’s modulus (E) and shear modulus (G) of isotropic Fe and binary Fe-C, Fe-Co, Fe-Cr, Fe-Ir, Fe-Mn, Fe-Ni, Fe-Pt, Fe-Re, Fe-Rh, and Fe-Ru alloys have been determined as functions of composition (0 to 10 at.

pet) and temperature (77 to K) by a pulse-echo technique ( kHz elastic waves). Poisson’s ratio (v) and the bulk modulus (K) have been derived from the values of E and :// The adiabatic elastic constants of single crystals of Fe-Si alloys in the composition range from at.% Si to 25 at.% Si have been determined by the ultrasonic pulse echo method at room temperature.

The values of the elastic constants depend significantly on the silicon content, and their composition dependences are influenced by ://. @article{osti_, title = {Pressure-induced elasticity changes in vanadium silicide}, author = {Larsen, Ronald Ernulf}, abstractNote = {The A (β-tungsten cubic) compound V3Si softens elastically as the temperature is decreased from °K.

This behavior contrasts with the stiffening observed in most metals and their compounds. This dissertation describes the author's measurements of Download Citation | An investigation of elastic moduli of vanadium-chromium alloys | The results of pulse echo measurements on polycrystalline V-Cr samples with approximately 0, 20, 40, 60, 80 and To understand this behavior, elastic constants were determined as a function of temperature.

From K down to 55 K, the shear modulus (G) of the HEA changes by only 8%, increasing from 80 to 86 ://