Time-resolved grazing-incidence X-ray diffraction measurement to understand the effect of hydrogen on surface strain development in super duplex stainless steel

• DOI: 10.1016/j.scriptamat.2020.05.061
• Publication Date: 2020-06-12T04:09:31Z
• Authors: Cem Örnek; Alfred Larsson; Gary S Harlow; Fan Zhang; Robin Kroll; Franceso Carlà; Hadeel Hussain; Ulf Kivisäkk; Dirk L Engelberg; Edvin Lundgren; Jinshan Pan
• Keywords: Embrittlement

Grazing-incidence x-ray diffraction was employed to measure, operando, during electrochemical hydrogen charging, the lattice strain development of near-surface in super duplex stainless steel under applied tensile load. Hydrogen absorption led formation strains both austenite (γ) and ferrite (δ) phases perpendicular loading axis, whereas compressive were formed phase parallel direction, despite acting The earliest stages degradation are discussed light understanding embrittlement.