Assessing the influence of hydrogen on texture evolution in polycrystalline nickel deformed under uniaxial tension

SCRIPTA MATERIALIA

卷:188

Article

Harris, Zachary D.¹  Ritzo, Michael A.¹  Schulte, Justine M.¹  Agnew, Sean R.¹  Burns, James T.¹ 

[1] Univ Virginia, Dept Mat Sci & Engn, Charlottesville, VA 22903 USA

关键词: Nickel;    Texture;    Hydrogen embrittlement;    EBSD;    Hydrogen enhanced localized plasticity;   

DOI  :  10.1016/j.scriptamat.2020.07.035

来源: Elsevier

【 摘 要 】

Uniaxial tensile experiments on hydrogen-charged and non-charged polycrystalline nickel deformed to a true plastic strain of similar to 0.1 at room temperature and 77 K reveal that hydrogen has no measurable effect on texture evolution. Texture measurements were completed on samples of each condition, as well as an as-received reference specimen, using electron backscatter diffraction data collected from >20,000 individual grains. Crystal plasticity simulations support the conclusion that the similarity is attributable to the insensitivity of small-strain deformation texture evolution to potential hydrogen-induced modifications in deformation mechanisms. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

Free