Center for Molecular Modeling - W. Van Renterghem

Dislocations mediate hydrogen retention in tungsten

wim — Fri, 13 Jun 2014 10:11:00 +0000

D. Terentyev, V. Dubinko, A. Bakaev, Y. Zayachuk, W. Van Renterghem, P. Grigorev

Nuclear Fusion

54 (4), 042004

2014

Abstract

In this letter, a comprehensive mechanism for the nucleation and growth of bubbles on dislocations under plasma exposure of tungsten is proposed. The mechanism reconciles long-standing experimental observations of hydrogen isotopes retention, essentially defined by material microstructure, and so far not fully explained. Hence, this work provides an important link to unify material's modelling with experimental assessment of W and W-based alloys as candidates for plasma facing components.

DOI

http://dx.doi.org/10.1088/0029-5515/54/4/042004

Private attachment

14_NuclFusion_54,042004_Terentyev.pdf

Ab initio modeling of fusion reactor materials: Unravelling the hydrogen retention mechanisms

alex — Tue, 19 Aug 2014 12:27:38 +0000

A. Bakaev, P. Grigorev, V. Dubinko, D. Terentyev, W. Van Renterghem, G. Van Oost

ISBN/ISSN:

Poster

Conference / event / venue

International Conference on Scientific Computing 2013

Paphos, Cyprus

Tuesday, 3 December, 2013 to Friday, 6 December, 2013

Trapping of H on dislocations and grain boundaries in W alloys: an atomistic study

alex — Tue, 19 Aug 2014 12:22:32 +0000

A. Bakaev, P. Grigorev, V. Dubinko, D. Terentyev, W. Van Renterghem, G. Van Oost

ISBN/ISSN:

Poster

Conference / event / venue

14th International Conference on Plasma-Facing Materials and Components for Fusion Applications

Julich, Germany

Monday, 13 May, 2013 to Friday, 17 May, 2013