On the Physics of Super Plastic Flow in Spatially Extended Polycrystalline Systems

Muñoz-Andrade, Juan Daniel

doi:10.1007/s12289-008-0038-8

Cited by 5 publications

(12 citation statements)

References 3 publications

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“…This Eq. (8) was used to obtain the value of the expansion rate of the universe related with the Hubble parameter, n u = H 0 =70 (km/sec)/Mpc = 2.26854593 x10 -18 s -1 [7]. Inclusively the first experimental evidence for the pair production process, and the existence of positrons, was obtained during an investigation of the cosmic radiation.…”

Section: Discussionmentioning

confidence: 99%

String theory and cosmic connection during super plastic flow

Muñoz-Andrade

2008

Materialwissenschaft Werkst

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The objective of this work is to describe the string theory and cosmic connection during super plastic flow in spatially extended polycrystalline systems (SEPCS), where the phenomenology and mechanics of the crystalline structure of the universe in a relativistic framework at Max Planck scale plays an important role. According to string theory as the unified theory of every thing, dislocations dynamics is related in nature form with the string theory. Consequently, dislocations at Max Plank scale are the universal way of working of every thing. In this physical framework, the theoretical model of Muñoz-Andrade allows obtained the activation energy for super plastic flow in SEPCS. Finally, the main results of this work are analyzed in the context of the unified interpretation of string theory as cosmic connection during Hubble flow, plastic flow and super plastic flow.

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Section: Discussionmentioning

confidence: 99%

String theory and cosmic connection during super plastic flow

Muñoz-Andrade

2008

Materialwissenschaft Werkst

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“…In this context, quantum mechanics and special theory of relativity play a fundamental role in explaining the mechanical behaviour of metallic materials, which can be considered as spatially extended physical systems [1][2][3][4]. In this framework, a physical theory of plastic deformation in spatially polycrystalline systems is used in order to understand the nature of the irreversible deformation of metallic materials on several thermomechanical conditions [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Effect of quantum mechanics and relativistic frequency parameter on hot deformation behaviour of CoCrFeMnNiC_0.5high entropy Alloy

Muñoz-Andrade

2022

J. Phys.: Conf. Ser.

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In the present investigation, a comparative study is carried out between the effect of the frequency parameter suggested by Zener-Hollomon (Z) and the effect of quantum mechanics and relativistic frequency parameter formulated by Muñoz-Andrade (M) on hot deformation behavior of CoCrFeMnNiC0.5 high entropy alloy (HEA), in the temperature range between 973 K and 1273 K and in the strain rate range between 0.001 and 1 s -1. The crucial findings denote that at strain of ε=0.8, the frequency parameter M increased when the temperature and the strain rate increased. Moreover, the nature wavelength (λ) associated with the frequency parameter M is reduced as the temperature and the strain rate are increased. This natural wavelength λ of CoCrFeMnNiC0.5 HEA development during the thermomechanical conditions applied in the present study are in the range between 0.346μm and 0.509μm. Such values are in a closed agreement with the width of the microbands (MBs) produced inside of grains. These MBs are considered as the dominant mechanism inside of crystals during the microstructural evolution related with the phenomenology and mechanics of discontinuous dynamic recrystallization in this HEA. These findings associated with the Muñoz-Andrade frequency parameter M, fully coincide with the Big Bang theory. Nevertheless, the findings associated with the Zener-Hollomon parameter Z, do not obey the Big-Bang theory. For example, the frequency parameter Z at the same deformation (ε=0.8) and thermomechanical conditions decreased as the temperature and the strain rate are increased. Additionally, the wavelength λ associated with the frequency parameter Z is in the range between 162μm and 1630μm, where such values does not coincide with the width of the MBs produced inside of grains during hot deformation of this CoCrFeMnNiC0.5 HEA.

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“…In this way single crystals are considered spatially extended crystalline systems (SECS) and polycrystalline metals and alloys are considered as spatially extended polycrystalline systems (SEPCS). During deformation the microstructure of a SECS or SEPCS changes in several ways and evidently, at the same time, the SECS or SEPCS are in a nature cosmic micromechanics connection [2][3][4][5]. This is a conceptual principle to describe the dynamics of infinite number of spatially extended physical systems and their interactions with respect to each other inside and outside our universe.…”

Section: Introductionmentioning

confidence: 99%

“…Where, c is the speed of light (c = 299 792 458 m/s), λ P = Planck length = 1.62x10 -35 m, this value represents the Burgers vector of the universe at the Planck scale [5], ξ U = the Hubble parameter or expansion rate of the universe (ξ U =70 (km/sec)/Mpc = 2.26854593 x10 -18 s -1 ), the expansion rate of the universe was obtained using the definition of the rate reaction theory [7], Q P = the Planck activation energy of the system at the Planck scale (Q P = 1.221x10 28 eV), wherever the quantum effects and gravitational effects are of equal importance, k = the Boltzmann constant (k = 8.617x10…”

Section: Introductionmentioning

confidence: 99%

“…J/K), T P = the Planck Temperature (T P = 1.010285625x10 30 K) after the Big Bang [7], λ H = e-mail: jdma@correo.azc.uam.mx ABSTRACT: The target of this work is to obtain the activation energy for plastic flow in spatially extended polycrystalline systems during tension test with constant crosshead velocity. For the reason that, during a tension test at constant crosshead velocity in spatially extended polycrystalline systems, the strain rate is reduced period-by-period and these thermo mechanical conditions could change the amplitude of vibration of the atoms and their frequency due to the amount of vibration energy absorbed and related with the variety of disorders occurring during such irreversible deformation process.…”

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confidence: 99%

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On the Physics of Super Plastic Flow in Spatially Extended Polycrystalline Systems

Cited by 5 publications

References 3 publications

String theory and cosmic connection during super plastic flow

String theory and cosmic connection during super plastic flow

Effect of quantum mechanics and relativistic frequency parameter on hot deformation behaviour of CoCrFeMnNiC_0.5high entropy Alloy

The Activation Energy for Plastic Flow in Spatially Extended Polycrystalline Systems during Tension Test

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On the Physics of Super Plastic Flow in Spatially Extended Polycrystalline Systems

Cited by 5 publications

References 3 publications

String theory and cosmic connection during super plastic flow

String theory and cosmic connection during super plastic flow

Effect of quantum mechanics and relativistic frequency parameter on hot deformation behaviour of CoCrFeMnNiC0.5high entropy Alloy

The Activation Energy for Plastic Flow in Spatially Extended Polycrystalline Systems during Tension Test

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Product

Resources

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Effect of quantum mechanics and relativistic frequency parameter on hot deformation behaviour of CoCrFeMnNiC_0.5high entropy Alloy