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Influence of Hydrogen Impurity in Palladium on Migration of Tilt Grain Boundaries

Journal Article · · Russian Physics Journal
The paper investigates the influence of the hydrogen impurity in palladium on the migration of tilt grain boundaries with <111> and <100> misorientation axes. It is shown that the migration velocity of grain boundaries decreases with the increasing hydrogen concentration in palladium, and at 50% hydrogen concentration it is approximately twice as slow as in pure palladium. Moreover, during the transition from low- to high-angle grain boundaries, their migration mechanism does not qualitatively change. The ordered networks of atomic displacements are observed, with square (for <100> grain boundary) and hexagonal (for <111> grain boundary) networks which reduce in size with the increasing misorientation angle.
OSTI ID:
22943458
Journal Information:
Russian Physics Journal, Journal Name: Russian Physics Journal Journal Issue: 7 Vol. 61; ISSN RPJOEB; ISSN 1064-8887
Country of Publication:
United States
Language:
English

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