Study of Certain Macroscopic Defects in Refractory Metals

  • G. A. Klein
  • V. A. Krakhmalev


All crystalline materials, including metals, contain a wide variety of crystal-structural defects such as vacancies, interstitial atoms, lines of dislocations, grain boundaries, subsidiary boundaries of mosaic blocks, pores, cracks, precipitated impurities, and so on. Many of the properties of metal crystals are directly associated with these defects [1–4]. A study of the various structural defects in metals is accordingly of major scientific and practical interest. Defects are most frequently studied in low-melting-point metals, steels, and alloys. The crystal-structural defects of the refractory metals, molybdenum, tungsten, rhenium, etc., have been little studied, although these metals have the most promising characteristics in current technology. We therefore decided to study pure molybdenum and molybdenum-zirconium alloys obtained by electron-beam vacuum zone melting and also thorium-containing tungsten (wire of the VT-10 type 0.2 mm in diameter).


Refractory Metal Impurity Particle Replica Method Carbon Replica Mosaic Block 
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Copyright information

© Consultants Bureau, New York 1971

Authors and Affiliations

  • G. A. Klein
  • V. A. Krakhmalev

There are no affiliations available

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