Abstract. Elastic properties of the solid regions of neutron star crusts and white dwarfs play an important role in theories of stellar oscillations. Matter in
Get priceFrom the force constants and applying the Born-von-Karman model the elastic constants and moduli were obtained ( g. 4.1). The obtained values show good agreement with ultrasonic measurements on di erent Fe-Cr-Ni-Mn systems. For comparison, also ultra-sonic studies in the system Fe-18Cr-12Ni-2Mo [Ledbetter 1981] were used. In the case of
Get price【9】Ledbetter H M. Sound velocities and elastic-constant averaging for polycrystalline copper[J]. J Phys D: Appl Phys, 1980, 13: 1879-1884. 【10】Ledbetter H M. Monocrystal-polycrystal elastic constants of a stainless steel[J]. Phys Status Solidi A, 1984, 85: 89-96.
Get priceWe determined experimentally the effect of manganese on the elastic constants of face centred cubic Fe-Cr-Ni alloys with chemical compositions near 304-type stainless steel. By a pulse-echo-overlap method, longitudinal and transverse soundwave velocities were determined in ten alloys containing up to 6% manganese. All the elastic stiffnesses decrease linearly with increasing manganese.
Get price2.2弹性参数识别ification Single crystal elastic constants appearing in Hooke's Law (Equations 10 and 11) were procured from archival literature. Ledbetter's elastic constants for austenitic stainless steel [7] were used for austenite and Simmons and Wang's constants for pure BCC iron were used for ferrite [8]. While alloying af-
Get priceMonocrystal-Polycrystal Elastic Constants of a Stainless Steel journal, September 1984. Ledbetter, H. M. Physica Status Solidi (a), Vol. 85, Issue 1; DOI: 10.1002/pssa.2210850111; ... 304L stainless steel (SS) as a test case. Additive manufacturing, or 3D printing, is an emerging technology capable of enabling shortened design and certification ...
Get priceOct 10, 2013· Stainless steels found in real-world applications usually have some C content in the base Fe–Cr alloy, resulting in hard and dislocation-pinning carbides—Fe 3 C (cementite) and Cr 23 C 6 —being present in the finished steel product. The higher complexity of the steel microstructure has implications, for example, for the elastic properties and the evolution of defects such as Frenkel ...
Get price@article{osti_1407891, title = {Averaging of elastic constants for polycrystals}, author = {Blaschke, Daniel N.}, abstractNote = {Many materials of interest are polycrystals, i.e., aggregates of single crystals. Randomly distributed orientations of single crystals lead to macroscopically isotropic properties. Here in this paper, we briefly review strategies of calculating effective isotropic ...
Get price"Study on the bonding stress distribution between steel and concrete using neutron diffractometer 'RESA'," Proceedings of Annual Meeting of Japan Concrete Institute, Fukuoka, Japan, pp. 649 – 654, in Japanese. Ledbetter, H. M. (1985). " Predicted monocrystal elastic constants of 304-type stainless steel," Physica 128B, 1 ...
Get price压痕模t的文献中找到hird TWIP steel, with composition Fe–18Mn–1.5Al–0.6C, produced elastic constants of 169, 82 and 96 GPa via the proposed method.
Get priceManganese contributions to the elastic constants of face centred cubic Fe-Cr-Ni stainless steel Ledbetter, H. M. Abstract. Publication: Journal of Materials Science. Pub Date: August 1985 DOI: 10.1007/BF00553056 Bibcode: ...
Get priceFor stainless steels 304, 310, and 316, longitudinal and transverse ultrasonic velocities were measured by a pulse-echo method between 295 and 4 K. From these velocities were computed five elastic constants: longitudinal modulus, shear modulus, Young's modulus, bulk modulus, and Poisson's ratio. All three steels show low-temperature elastic-constant anomalies, which arise from magnetic phase ...
Get priceOct 10, 2013· Stainless steels found in real-world applications usually have some C content in the base Fe–Cr alloy, resulting in hard and dislocation-pinning carbides—Fe 3 C (cementite) and Cr 23 C 6 —being present in the finished steel product. The higher complexity of the steel microstructure has implications, for example, for the elastic properties and the evolution of defects such as Frenkel ...
Get price2.2. Elastic Constants Calculations. Elastic constants and elastic moduli in this work have been calculated following the methodology described in Refs. [31,32,33] in detail. Three independent elastic constants for a cubic system can be represented by the bulk modulus B, C ′ C ′ = (C 11 − C 12) / 2 (C 11 − C 12) / 2 and C 44 C 44 .
Get priceAbstract. Elastic properties of the solid regions of neutron star crusts and white dwarfs play an important role in theories of stellar oscillations. Matter in
Get priceTwenty samples acquired randomly were measured ultrasonically within an experimental uncertainty of 0.2% in the sound velocities. The results showed surprisingly small elastic-constant variations; about 1% in the Young's and shear moduli and about 1.5% in the bulk modulus and Poisson's ratio.
Get priceIn addition to the strain hardening deformation (at 0.01 strain). rate, the large strain deformation introduces the internal The elastic constants were also measured on bulk samples stresses and influences elastic-plastic transition behavior of between 300 and 5 K with a cylindrical specimen (0.954 cm the materials.
Get priceThis study involved the ultrasonic measurement of the polycrystalline elastic constants of six face-centered-cubic Fe–Cr–Ni alloys, nominally Fe–19Cr–12Ni (at. In these alloys, Mo content ranged up .
Get priceThe specimen material was austenitic stainless steel, SUS316L. The residual stress was induced by water-jet peening. The residual stress was measured using the 311 diffraction with conventional X-rays. The measured residual stress showed the equi-biaxial stress state. To investigate thermal stability of the residual stress, the specimen was aged thermally at 773 K in air to 1000 h.
Get price2.2. Elastic Constants Calculations. Elastic constants and elastic moduli in this work have been calculated following the methodology described in Refs. [31,32,33] in detail. Three independent elastic constants for a cubic system can be represented by the bulk modulus B, C ′ C ′ = (C 11 − C 12) / 2 (C 11 − C 12) / 2 and C 44 C 44 .
Get price【9】Ledbetter H M. Sound velocities and elastic-constant averaging for polycrystalline copper[J]. J Phys D: Appl Phys, 1980, 13: 1879-1884. 【10】Ledbetter H M. Monocrystal-polycrystal elastic constants of a stainless steel[J]. Phys Status Solidi A, 1984, 85: 89-96.
Get priceData from literature Experimental detailsTo generate the specimens with different microstructures and hence different elastic properties, various specimens of titanium alloys (Ti-6Al-4V and Ti-4.5Al-3Mo-1V), superalloy Inconel 625, various ferritic steels (modified 9Cr-1Mo steel and 2.25Cr-1Mo steel) and AISI type 316 austenitic stainless steel ...
Get priceAug 26, 2016· The result is an implicit nist-equation for the average polycrystal elastic constants and an explicit nist-equation for the average thermal expansion coefficients. For the particular case of cubic symmetry the results can be reduced to a cubic nist-equation for the self-consistent shear modulus. Citation. Journal of Mechanics.
Get priceLotus-type porous stainless steel (SUS304L), possessing cylindrical pores aligned in one direction, was fabricated by means of a continuous zone melting technique undera pressurized hydrogen/helium atmosphere. ... Ledbetter, H., Frederick, N. and Austin, M.: Elastic-constant variability in stainless-steel 304. J. Appl. Phys. 51, 305 (1980 ...
Get priceNov 21, 2000· The resonance frequencies of mechanical free vibration of a three-layer material calculated by a discrete-layer model and measured by acoustic-resonance methods were compared. The material was composed of an aluminum parallelepiped sandwiched by two stainless-steel parallelepipeds. The discrete-layer model developed here used linear Lagrange basis functions .
Get priceMonocrystal‐Polycrystal Elastic Constants of a Stainless Steel. H. M. Ledbetter; Pages: 89-96; First Published: 16 September 1984; Abstract; Full text PDF PDF References; Request permissions; Structure and Molar Refraction and Its Wavelength Dependence at Different Alkali and Ammonium Halides ...
Get priceElastic Constants Determination of the Thin Cold-Rolled Stainless Steel by Acoustic Resonance Method. Section: Linear Elastic and Nonlinear Properties. Seung Seok Lee, Korea Research Institute of Standards and Science Un-Sig Min, Korea Research Institute of Standards and Science Bong Young Ahn, Korea Research Institute of Standards and Science
Get price[3] Ledbetter, H. M., "Monocrystal-Polycrystal Elastic Constants of a Stainless Steel", Physica Status Solidi (A) Applied Research, Vol. 85, pp. 89-96, 1984. [4] Masaki Nagai, Shan Lin, Audrey Gardahaut, Hugues Lourme and Frederic Jenson, "Experimental visualization of ultrasonic wave propagation in dissimilar metal welds", 11th
Get priceVariability of elastic constants in stainless‐steel 304 was determined by measuring longitudinal and transverse ultrasonic velocities in 20 samples acquired randomly. Three kinds of variations—sample to sample, directional within a sample, and repeated measurements on a single sample—are reported for four elastic constants: the bulk modulus, Young's modulus, shear modulus, and Poisson ...
Get priceLow-temperature manganese contributions to the elastic constants of face-centred-cubic Fe-Cr-Ni stainless steel Ledbetter, H. M.; Kim, S. A. Abstract. Publication: Journal of Materials Science. Pub Date: June 1988 DOI: 10.1007/BF01115779 ...
Get priceIn addition to the strain hardening deformation (at 0.01 strain). rate, the large strain deformation introduces the internal The elastic constants were also measured on bulk samples stresses and influences elastic-plastic transition behavior of between 300 and 5 K with a cylindrical specimen (0.954 cm the materials.
Get pricethe engineering elastic constants. The Young's modulus, E, is defined as the constant of proportionality between a uniaxial applied stress and the resulting axial strain, i.e: sL = EeL Note. This only applies for a uniaxial applied stress, and the component of strain in the direction of the applied stress.
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