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Volume 20 (2020): Edizione 4 (December 2020)

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Volume 19 (2019): Edizione 4 (December 2019)

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Volume 19 (2019): Edizione 2 (June 2019)

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Volume 18 (2018): Edizione 2 (June 2018)

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Volume 17 (2017): Edizione 4 (December 2017)

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Volume 17 (2017): Edizione 2 (June 2017)

Volume 17 (2017): Edizione 1 (March 2017)

Volume 16 (2016): Edizione 4 (December 2016)

Volume 16 (2016): Edizione 3 (September 2016)

Volume 16 (2016): Edizione 2 (June 2016)

Volume 16 (2016): Edizione 1 (March 2016)

Volume 15 (2015): Edizione 4 (December 2015)

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Volume 13 (2013): Edizione 4 (December 2013)

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Volume 8 (2008): Edizione 1 (March 2008)

Dettagli della rivista
Formato
Rivista
eISSN
2083-4799
Pubblicato per la prima volta
23 Sep 2008
Periodo di pubblicazione
4 volte all'anno
Lingue
Inglese

Cerca

Volume 19 (2019): Edizione 2 (June 2019)

Dettagli della rivista
Formato
Rivista
eISSN
2083-4799
Pubblicato per la prima volta
23 Sep 2008
Periodo di pubblicazione
4 volte all'anno
Lingue
Inglese

Cerca

5 Articoli
Accesso libero

Problems of Pad Welding Structural Steels with Martensitic Filler Metal

Pubblicato online: 02 Jul 2019
Pagine: 5 - 14

Astratto

Abstract

There is a problem in obtaining a suitable impact strength of the padding weld after cladding with a martensitic filler metal. Too low annealing temperature below 580°C and the excessive annealing temperature above 650°C do not provide adequate impact strength of the padding weld. A heat treatment technology for mixed joints has been developed based on the results of the microscopic observations, X-ray diffraction measurements and transmission electron microscope examination. The problem was identified and a special technology of heat treatment for the dissimilar joint was elaborated. This technology provides a high impact resistance of the padding weld and an appropriate properties of the base material.

Parole chiave

  • pad welding
  • reversed austenite
  • X3CrNiMo13-4 martensitic steel
  • H parameter
Accesso libero

Analysis of Bone Wedge Dimensions Selection Methods in High Tibial Osteotomy

Pubblicato online: 02 Jul 2019
Pagine: 15 - 27

Astratto

Parole chiave

  • implantation
  • bone deformation
  • Young’s modulus
Accesso libero

An Influence of Factors of Flow Condition, Particle and Material Properties on Slurry Erosion Resistance

Pubblicato online: 02 Jul 2019
Pagine: 28 - 53

Astratto

Abstract

The degradation of materials due to slurry erosion is the serious problem which occurs in the power industries. The paper presents actual knowledge about an influence of individual factors connected with flow conditions, particles and material properties on the slurry erosion resistance. Among the factors connected with operating conditions, an influence of impact angle, and velocity of impact, particle concertation and liquid temperature have been described. In case of the factors connected with solid particle properties, an influence of the size, shape and hardness have been discussed. In the part devoted to the impact of material properties, due to different types of materials, the issues of resistance to erosion of slurries related to the properties of steel, ceramics and polymers are discussed separately. In the paper has been shown that a change of any of mentioned factors causes a change in the erosion rate due to the synergistic effects that accompany to slurry degradation.

Parole chiave

  • erosion
  • slurry erosion
  • degradation
  • resistance
  • material properties
Accesso libero

X-Ray Computer Tomography Study of Degradation of the Zircaloy-2 Tubes Oxidized at High Temperatures

Pubblicato online: 02 Jul 2019
Pagine: 54 - 71

Astratto

Parole chiave

  • zirconium
  • oxide layers
  • high temperature
  • X-ray tomography
  • cracking
  • nodular corrosion
Accesso libero

The Influence of Pulsating Tensile Stress on Residual Magnetic Field of P91 Steel Samples

Pubblicato online: 02 Jul 2019
Pagine: 72 - 82

Astratto

Parole chiave

  • P91 steel
  • residual magnetic field
  • magnetization
  • measurement
  • microstructure
5 Articoli
Accesso libero

Problems of Pad Welding Structural Steels with Martensitic Filler Metal

Pubblicato online: 02 Jul 2019
Pagine: 5 - 14

Astratto

Abstract

There is a problem in obtaining a suitable impact strength of the padding weld after cladding with a martensitic filler metal. Too low annealing temperature below 580°C and the excessive annealing temperature above 650°C do not provide adequate impact strength of the padding weld. A heat treatment technology for mixed joints has been developed based on the results of the microscopic observations, X-ray diffraction measurements and transmission electron microscope examination. The problem was identified and a special technology of heat treatment for the dissimilar joint was elaborated. This technology provides a high impact resistance of the padding weld and an appropriate properties of the base material.

Parole chiave

  • pad welding
  • reversed austenite
  • X3CrNiMo13-4 martensitic steel
  • H parameter
Accesso libero

Analysis of Bone Wedge Dimensions Selection Methods in High Tibial Osteotomy

Pubblicato online: 02 Jul 2019
Pagine: 15 - 27

Astratto

Parole chiave

  • implantation
  • bone deformation
  • Young’s modulus
Accesso libero

An Influence of Factors of Flow Condition, Particle and Material Properties on Slurry Erosion Resistance

Pubblicato online: 02 Jul 2019
Pagine: 28 - 53

Astratto

Abstract

The degradation of materials due to slurry erosion is the serious problem which occurs in the power industries. The paper presents actual knowledge about an influence of individual factors connected with flow conditions, particles and material properties on the slurry erosion resistance. Among the factors connected with operating conditions, an influence of impact angle, and velocity of impact, particle concertation and liquid temperature have been described. In case of the factors connected with solid particle properties, an influence of the size, shape and hardness have been discussed. In the part devoted to the impact of material properties, due to different types of materials, the issues of resistance to erosion of slurries related to the properties of steel, ceramics and polymers are discussed separately. In the paper has been shown that a change of any of mentioned factors causes a change in the erosion rate due to the synergistic effects that accompany to slurry degradation.

Parole chiave

  • erosion
  • slurry erosion
  • degradation
  • resistance
  • material properties
Accesso libero

X-Ray Computer Tomography Study of Degradation of the Zircaloy-2 Tubes Oxidized at High Temperatures

Pubblicato online: 02 Jul 2019
Pagine: 54 - 71

Astratto

Parole chiave

  • zirconium
  • oxide layers
  • high temperature
  • X-ray tomography
  • cracking
  • nodular corrosion
Accesso libero

The Influence of Pulsating Tensile Stress on Residual Magnetic Field of P91 Steel Samples

Pubblicato online: 02 Jul 2019
Pagine: 72 - 82

Astratto

Parole chiave

  • P91 steel
  • residual magnetic field
  • magnetization
  • measurement
  • microstructure

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