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


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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.

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G. Poletaev

Polzunov Altai State Technical University

编辑信件的主要联系方式.
Email: gmpoletaev@mail.ru
俄罗斯联邦, Barnaul

I. Zorya

Siberian State Industrial University

Email: gmpoletaev@mail.ru
俄罗斯联邦, Novokuznetsk

M. Starostenkov

Polzunov Altai State Technical University

Email: gmpoletaev@mail.ru
俄罗斯联邦, Barnaul

R. Rakitin

Altai State University

Email: gmpoletaev@mail.ru
俄罗斯联邦, Barnaul

D. Kokhanenko

Financial University under the Government of the Russian Federation

Email: gmpoletaev@mail.ru
俄罗斯联邦, Barnaul

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