Polymorphic transformation of iron in a shock

Anan'in, A. V.; Dremin, A. N.; Kanel, G. I.

doi:10.1007/bf00751308

Cited by 11 publications

(16 citation statements)

References 8 publications

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“…The Ox(t) profiles of the stresses were recorded with double-wound manganin pressure sensors [2,3], the dimensions of the sensitive foil elements of which were ~4.2 • 4.2 mm. The pressure sensors were located between the plates of the composite specimens and insulated with layers of Dacron, fluoroplastic, or mica.…”

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confidence: 99%

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Resistance to deformation and fracture of 35Kh3NM steel under conditions of shock loading

Gluzman¹,

Kanel²,

Loskutov³

et al. 1985

Strength Mater

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Consequently, the mechanical characteristics of the condition of the metal may not serve as an indicator of its damage by pores. CONCLUSIONS I. The process of development of sources of failure in heterogeneous heat-resistant steels is a complex one and may not be described within the limits of any single physical model.More promising is a phenomenological approach to describing the kinetics of this process.2. The relationship of the damage of the metal by pores to the time of creep is presented and, on the basis of it, a structural method is proposed for determination of the residual life based on the degree of damage by pores.3. The short-term mechanical properties may not serve as an indicator of the degree of damage of the metal by pores..

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confidence: 99%

“…The results of other authors make it possible to suggest that the ductility of steels decreases in the transition from static deformation to dynamic straining [3][4][5][6].…”

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confidence: 99%

Resistance to deformation and fracture of 35Kh3NM steel under conditions of shock loading

Gluzman¹,

Kanel²,

Loskutov³

et al. 1985

Strength Mater

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“…The unusual highlight of the outcome of the impulsion of shock waves on a few materials is that significantly unique features of polymorphic transformations occur, which are already reported to a certain extent 2 – 4 …”

Section: Introductionmentioning

confidence: 91%

“…1 The unusual highlight of the outcome of the impulsion of shock waves on a few materials is that significantly unique features of polymorphic transformations occur, which are already reported to a certain extent. [2][3][4] The imitation of the same environment of shock waves generated in a laboratory setup would help in understanding the formation of many fundamental organic structures of life. Amino acids are known to be the fundamental units of all living species.…”

Section: Introductionmentioning

confidence: 99%

Rapid enhancement of optical transparency on glycine phosphite crystals by shock waves

Muniraj,

Sathiyadhas,

Subbiah

et al. 2023

Opt. Eng.

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Glycine phosphite single crystals were grown by employing the slow evaporation solution growth technique. Grown crystals were subjected to shock waves generated by a pressure-driven Reddy Tube. The (001) plane of the grown crystal was subjected to various numbers of shock pulses of Mach number 1.7 whereby its structural, optical, and morphological properties were investigated by using the powder X-ray diffractometer, ultraviolet (UV)-visible spectrometer, impedance analyzer, and optical microscope, respectively. The powder X-ray diffraction analysis confirms that the crystals have comparatively higher structural stability along the (001) direction. The observed UV-visible spectrum reveals a considerable increase in optical transmission when increasing the number of shock pulses. The band gap of the crystal is also found to have increased from 4.15 to 4.17 eV after the fifth shock-loaded condition. The dielectric behaviour of the crystal under shocked conditions is studied in the frequency range of 1 Hz to 1 MHz.

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“…However, the best way to determine the reverse transformations in dynamic experiments is with in-material piezoresistance gauges which record the 'rarefaction shocks' that result from these reverse transitions. In [5] and [6] thin manganin gauges were embedded in iron specimens which were shock loaded to about 200 kbar and these rarefaction shock waves were recorded. The values assigned for the pressures at the onset of the E + a transformation were 100 ?…”

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On the determination of the reverse transformations in shock-loaded solids with in-material piezoresistance gauges

Rosenberg¹

1987

J. Phys. D: Appl. Phys.

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The onset of the reverse transition in phase-transforming solids, under planar loading, is discussed. It is shown that the earlier interpretation, which correlates this onset with the stress level just prior to the rarefaction shock, is more adequate than a different interpretation which was suggested recently. According to this interpretation, it is impossible to determine the exact pressure at the reverse transition with in-material gauges. The author brings three arguments which oppose this new interpretation based on the expected shapes of in-material piezoresistance gauges. If the new interpretation is right then measured stress histories in shock-loaded Armco iron specimens, with manganin gauges, should look differently than they do, as recorded by three different groups.

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Polymorphic transformation of iron in a shock

Cited by 11 publications

References 8 publications

Resistance to deformation and fracture of 35Kh3NM steel under conditions of shock loading

Resistance to deformation and fracture of 35Kh3NM steel under conditions of shock loading

Rapid enhancement of optical transparency on glycine phosphite crystals by shock waves

On the determination of the reverse transformations in shock-loaded solids with in-material piezoresistance gauges

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