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Informacje o czasopiśmie
Format
Czasopismo
eISSN
2083-4799
Pierwsze wydanie
23 Sep 2008
Częstotliwość wydawania
4 razy w roku
Języki
Angielski

Wyszukiwanie

Tom 19 (2019): Zeszyt 2 (June 2019)

Informacje o czasopiśmie
Format
Czasopismo
eISSN
2083-4799
Pierwsze wydanie
23 Sep 2008
Częstotliwość wydawania
4 razy w roku
Języki
Angielski

Wyszukiwanie

0 Artykułów
Otwarty dostęp

Problems of Pad Welding Structural Steels with Martensitic Filler Metal

Data publikacji: 02 Jul 2019
Zakres stron: 5 - 14

Abstrakt

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.

Słowa kluczowe

  • pad welding
  • reversed austenite
  • X3CrNiMo13-4 martensitic steel
  • H parameter
Otwarty dostęp

Analysis of Bone Wedge Dimensions Selection Methods in High Tibial Osteotomy

Data publikacji: 02 Jul 2019
Zakres stron: 15 - 27

Abstrakt

Słowa kluczowe

  • implantation
  • bone deformation
  • Young’s modulus
Otwarty dostęp

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

Data publikacji: 02 Jul 2019
Zakres stron: 28 - 53

Abstrakt

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.

Słowa kluczowe

  • erosion
  • slurry erosion
  • degradation
  • resistance
  • material properties
Otwarty dostęp

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

Data publikacji: 02 Jul 2019
Zakres stron: 54 - 71

Abstrakt

Słowa kluczowe

  • zirconium
  • oxide layers
  • high temperature
  • X-ray tomography
  • cracking
  • nodular corrosion
Otwarty dostęp

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

Data publikacji: 02 Jul 2019
Zakres stron: 72 - 82

Abstrakt

Słowa kluczowe

  • P91 steel
  • residual magnetic field
  • magnetization
  • measurement
  • microstructure
0 Artykułów
Otwarty dostęp

Problems of Pad Welding Structural Steels with Martensitic Filler Metal

Data publikacji: 02 Jul 2019
Zakres stron: 5 - 14

Abstrakt

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.

Słowa kluczowe

  • pad welding
  • reversed austenite
  • X3CrNiMo13-4 martensitic steel
  • H parameter
Otwarty dostęp

Analysis of Bone Wedge Dimensions Selection Methods in High Tibial Osteotomy

Data publikacji: 02 Jul 2019
Zakres stron: 15 - 27

Abstrakt

Słowa kluczowe

  • implantation
  • bone deformation
  • Young’s modulus
Otwarty dostęp

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

Data publikacji: 02 Jul 2019
Zakres stron: 28 - 53

Abstrakt

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.

Słowa kluczowe

  • erosion
  • slurry erosion
  • degradation
  • resistance
  • material properties
Otwarty dostęp

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

Data publikacji: 02 Jul 2019
Zakres stron: 54 - 71

Abstrakt

Słowa kluczowe

  • zirconium
  • oxide layers
  • high temperature
  • X-ray tomography
  • cracking
  • nodular corrosion
Otwarty dostęp

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

Data publikacji: 02 Jul 2019
Zakres stron: 72 - 82

Abstrakt

Słowa kluczowe

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