Upd: Meyd-173

| Challenge | Description | Possible Mitigation | |-----------|-------------|---------------------| | | Maintaining nanolaminate consistency across large volumes is technically demanding. | Development of roll‑to‑roll HPHT processing and closed‑loop additive manufacturing pipelines. | | Cost of Rare‑Earth Yttrium | Yttrium adds to material cost and supply‑chain risk. | Substituting with more abundant lanthanides (e.g., cerium) while preserving oxide‑based passivation. | | Standardization | Existing certification frameworks do not yet accommodate nanostructured alloys. | Early engagement with standards bodies (e.g., SAE, ASTM) to define testing protocols. | | Long‑Term Reliability | Limited data on ultra‑long‑term creep and fatigue under space‑radiation environments. | Accelerated life‑testing campaigns combined with predictive modeling. |

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