Machines. Technologies. Materials.
Vol. 13 (2019), Issue 12, pg(s) 561-563

MATERIALS

PROTECTION OF TITANIUM AGAINST HYDROGEN EMBRITTLEMENT

  • 1 G. V. Kurdyumov Institute for Metal Physics of the N.A.S. of Ukraine - Kyiv, Ukraine

Abstract

The protective coatings of Al2O3 and AlN on iodide titanium in initial state and after annealing in a hydrogen atmosphere were investigated by scanning electron microscopy. It was found that the coatings protect titanium from the interaction with hydrogen at a pressure of 0.6 MPa up to 650 °C. It was shown that at 700 °C and pressure 0.6 MPa cracking of the protective coatings occurred, and the process of active absorption of hydrogen started.

Keywords

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