# Visual sources / Fontes visuais / Fuentes visuales

Liu, Schools, Jiang, Jackson & Demkowicz (2026), Journal of Materials Research, DOI 10.1557/s43578-026-01978-4, CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). 

Original article: https://link.springer.com/article/10.1557/s43578-026-01978-4

Figures 4, 5 and 6 reproduced uncropped; WebP encoding only. Original scale bars, labels and panels retained. Laboratory specimens; not industrial failures. Captions translated. No third-party exclusion credit shown for these figures.

Open Graph: Figure 5 resized uncropped and composed alongside translated title and credit; DOI shown.

Five kit figures: PT originals preserved byte-for-byte; EN/ES adapted educational figures. Figure 3 EN/ES uses literal reported reductions instead of exact-looking remaining-elongation bars. PT original bar is approximate: >70% reduction means <30% of reference; ~25% reduction means ~75%. Not a strength or lifetime result.

Checked 2026-10-17.


# Visual credits — hydrogen embrittlement

Scientific images: Mengying Liu, Patrick Schools, Lai Jiang, Jacob Jackson, Michael J. Demkowicz (2026). Comparative hydrogen embrittlement behavior of alloy 725 by electrochemical and thermal gaseous pre-charging. Journal of Materials Research. https://doi.org/10.1557/s43578-026-01978-4. Figures 4, 5 and 6. CC BY 4.0: https://creativecommons.org/licenses/by/4.0/. No third-party exclusions identified in these figures.

Uncropped reproductions retain original labels and scale bars; WebP conversion only. OG cards reproduce the complete Figure5 scaled proportionally beside localized text and branding (17 October 2026). They depict laboratory specimens, not service failures.

NIST photo: National Institute of Standards and Technology, Materials Testing in Extreme Environments. https://www.nist.gov/programs-projects/materials-testing-extreme-environments. Image: https://www.nist.gov/sites/default/files/images/2017/02/13/top2012fig2_1.gif. Individual photographer not named. Photo shows a multiple-specimen test chain, separate from the alloy725 paper. GIF converted to WebP without crop on 17 October 2026.

NIST license/permission: https://www.nist.gov/open/copyright-fair-use-and-licensing-statements-srd-data-software-and-technical-series-publications — employee works are not copyrighted in the US; policy grants worldwide royalty-free print/publish/derivative/distribution rights with NIST acknowledgment. NIST supplies works as a public service, AS IS, without warranty; no NIST endorsement is implied.

Five authorial PT figures: supplied Andrade Safe kit, 15 October2026, PNG files retained byte for byte. EN/ES labels translated and code-rendered; evidence figure3 uses literal reported reductions (>70% and ≈25%) instead of approximate bars. Educational diffusion figures do not predict cracks or component life. Conceptual microstructure is not an actual FCC unit cell.