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EFFECT OF LOW TEMPERATURE THERMOCYCLING ON THE STRUCTURE AND STRESS-STRAIN CURVE PARAMETERS OF A TITANIUM-ALUMINIUM ALLOY AT 4.2 K.

Author(s) : LAVRENTEV F. F., POKHIL Ju. A., DUDKO P. P.

Type of article: Article

Summary

TRANSMISSION ELECTRON MICROSCOPY WAS USED TO STUDY THE FEATURES OF THE DEFECT STRUCTURE OF THE TITANIUM (3.5-5%) ALUMINIUM ALLOY INDUCED BY REPEATED THERMOCYCLING BETWEEN 300 AND 77 K AND BY LOW TEMPERATURE PLASTIC DEFORMATION AT 4.2 K. THE THERMOCYCLING COMBINED WITH AN APPLIED STRESS BRINGS ABOUT SIGNIFICANT CHANGES IN THE STRUCTURAL STATE OF THE ALLOY (DISLOCATION DENSITY INCREASE, REDISTRIBUTION OF INTERNAL STRESSES, TWINNING DIFFICULTY), RESULTING IN INCREASING STRENGTH AND PLASTICITY OF THE ALLOY AT THE LIQUID HELIUM TEMPERATURE.

Details

  • Original title: EFFECT OF LOW TEMPERATURE THERMOCYCLING ON THE STRUCTURE AND STRESS-STRAIN CURVE PARAMETERS OF A TITANIUM-ALUMINIUM ALLOY AT 4.2 K.
  • Record ID : 1983-2061
  • Languages: English
  • Source: Cryogenics - vol. 23 - n. 3
  • Publication date: 1983

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