Showing 1,101 - 1,120 results of 4,536 for search 'Zadibal~', query time: 2.16s Refine Results
  1. 1101
  2. 1102
  3. 1103
  4. 1104
  5. 1105
  6. 1106
  7. 1107
  8. 1108
  9. 1109
  10. 1110
  11. 1111
  12. 1112
  13. 1113

    COMPARATIVE RESEARCHES OF FRACTURES OF HIGH-STRENGTH CAST IRON IN THE AS-CAST AND DEFORMED STATE by A. I. Pokrovsky, I. N. Khrol

    Published 2016-01-01
    Subjects: “…the results of comparative studies of fracture surfaces of high-strength cast iron in the as-cast state and after hot direct extrusion through an aperture of a conical die are presented. the shape change of graphite inclusions and components of the metal matrix is examined with increasing the reduction ratio from 0 (as-cast state) to 80%. for the fist time, using the electrochemical etching of the metal matrix of the cast iron, it is demonstrated experimentally that at plastic deformation the ductile flow of graphite inclusions occurs without fracturing of the latter. the surface morphology of a deformed graphite inclusion is revealed. it is shown that inside the inclusion the strain is distributed non-uniformly: the peripheral zones are deformed to a larger extent while the central part may retain its original radial structure. the fact that the most part of graphite inclusions on the fracture surface of the deformed cast iron appeared undamaged (very small amount of fractured inclusions was observed) testifies against the common opinion that graphite acts as a crack nucleation site. a hypothesis is put forward that the crack nucleates in the metal matrix, presumably at the pearlite/ferrite interface, and propagates from one graphite inclusion to another rounding but not damaging the latter.…”
    Get full text
    Article
  14. 1114

    Characterization and Application of the Thermal Neutron Radiography Beam in the Egyptian Second Experimental and Training Research Reactor (ETRR-2) by M. A. Abou Mandour, R. M. Megahid, M. H. Hassan, T. M. Abd El Salam

    Published 2007-01-01
    “…The neutron radiography facility unit utilizes one of the radial beam tubes. The track-etch technique using nitrocellulose films and converter screen is applied. …”
    Get full text
    Article
  15. 1115
  16. 1116
  17. 1117
  18. 1118
  19. 1119

    A Calculation Method of Angular Contact Ball Bearing Contact Stiffness Considering Lubrication Effect by Fengxia Lu, Zhiqiang Zhao, Wenbin Pan, Heyun Bao

    Published 2021-09-01
    “…The increase in the radial load makes the axial stiffness increase and the radial stiffness decrease. …”
    Get full text
    Article
  20. 1120

    Study on the Characteristics of Traction Forces Difference Asymmetric Steering Bogies by Yan Shi, Junxiong Hu, Weihua Ma

    Published 2016-01-01
    “…This article comes up with a new concept of applying the difference between traction forces on front and rear wheelsets to guiding control, as well as the design of a new type of structurally simple asymmetrical radial bogies, which lead to the proposition of traction forces difference-steering asymmetric radial bogies. …”
    Get full text
    Article