Elastic constants of face-centered-cubic cobalt

Gump, Jared; Xia, Hua; Chirita, M.; Sooryakumar, R.; Tomaz, M. A.; Harp, G. R.

doi:10.1063/1.371647

Cited by 57 publications

(22 citation statements)

References 20 publications

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“…However, single crystal elastic constants specific to ASTM F75 are not currently available in literature, but they do exist for pure cobalt, the elastic anisotropy factor of which was found to be 2.83 (Ref. 42,44 ).…”

Section: Elastic Modulus Anisotropymentioning

confidence: 99%

Determination of residual stress within complex-shaped coarse-grained cobalt–chromium biomedical castings

Conroy

Tanner

2016

Materials Science and Technology

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ASTM F75 femoral knee implant casting components distort during manufacture due to residual stress re-distribution or inducement. These castings pose a number of challenges for residual stress determination methods; they have a complex geometry, their microstructure is inhomogeneous, they work-harden rapidly and they have a coarse, elasticallyanisotropic grain structure. The contour method is anticipated to be the most promising residual stress determination technique. X-ray diffraction is feasible for components which have experienced plastic deformation on their surface which results in refined diffracting domains. Centre-hole drilling is feasible, but the influence of stress induced from drilling and the effect of coarse grain-structure is unknown. Neutron diffraction is challenging also due to a coarse grain structure and difficult nuclear material properties.

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Section: Elastic Modulus Anisotropymentioning

confidence: 99%

Determination of residual stress within complex-shaped coarse-grained cobalt–chromium biomedical castings

Conroy

Tanner

2016

Materials Science and Technology

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“…This contradicts classical continuum fracture theories predicting a continuously increasing crack speed with increasing load (Buehler et al 2007). In the case of E z = 0, the crack approaches a speed of 4.1 km/sec, which is about 75% of the Rayleigh-wave speed, the limiting speed predicted by continuum theory (Gump et al 1999).…”

Section: Crack Propagationmentioning

confidence: 77%

Effects of electric field on nanocrack propagation

Wang

Lee

2011

Int J Fract

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The present work is concerned with the application of Atomistic Field Theory (AFT) in modeling and simulation of dynamic nanocrack propagation under electrical and mechanical loadings. AFT enables us to express an atomic scale local property of a multi-element crystalline (which has more than one kind of atoms in the unit cell) system in terms of the distortions of lattice cells and the rearrangement of atoms within the lattice cell, thereby making AFT suitable to fully reproduce both atomic-scale and continuum level phenomena. Atomistic Field Theory and its corresponding finite element (FE) implementation are briefly introduced. Taking both efficiency and accuracy into account, we adopt a cluster-based summation rule for atomic force calculations in the FE formulations. Single crystal MgO under electrical/mechanical loading is modeled and simulated. Numerical results show that electric fields can serve as a tool to shield the crack initiation and propagation in the ionic crystal materials, thereby offering new perspectives on fracture mechanics at nano scale.

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“…As seen in Fig.11, the assessed composition dependence of young's modulus of fcc Fe-Ni agrees with the data measured by Tanji [26] and Speich [27] except the data in the composition range between 0.8 to 1. For bcc Fe-Co system, Gump et al [28] measured the bulk modulus and elastic constants of bcc Co, we can derive young's modulus for bcc Co to be E=201.78GPa. As seen in Fig.12, it presents a parabolic trend, i.e.…”

Section: Composition Dependence Of the Young's Modulus Of Fe-xmentioning

confidence: 87%

Establishment of the Elastic Property Database of Fe-base Alloys

Su¹,

He²,

Liu³

et al. 2015

Proceedings of the First International Conference on Information Sciences, Machinery, Materials and Energy

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Abstract. The elastic properties, including bulk modulus and Young's modulus, for the bcc and fcc phases of Fe-base alloys have been studied at room temperature and atmospheric pressure. The temperature dependence of the elastic properties of the elemental metals, i.e. Fe, Al… and .., has been modeled by using the CALPHAD approach and the first-principles calculations. Reasonable model parameters have been obtained giving a best description of most experimental data.

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Elastic constants of face-centered-cubic cobalt

Cited by 57 publications

References 20 publications

Determination of residual stress within complex-shaped coarse-grained cobalt–chromium biomedical castings

Determination of residual stress within complex-shaped coarse-grained cobalt–chromium biomedical castings

Effects of electric field on nanocrack propagation

Establishment of the Elastic Property Database of Fe-base Alloys

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