L1 ⚛ L1-339 ⊙ Testnet

Electrochemical Corrosion Kinetics

Materials Science · Mixed-potential corrosion

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⬇ L1-339.md

# ⚛ L1 Principle — Electrochemical Corrosion Kinetics **ID:** `L1-339` · **Status:** ⊙ Testnet (genesis catalog) > **🌐 Domain:** Materials Science — *Mixed-potential corrosion* > **🎯 Problem class:** nonlinear inverse · **🧮 Solution space:** i E corrosion curves > **📡 Carrier:** ion · **🌫 Noise:** gaussian > **⚖ Difficulty (δ):** 3 · **⛓ Block:** 41554129 --- ## 🧠 1. Introduction **Electrochemical Corrosion Kinetics** is a **nonlinear inverse problem** whose unknown lives in **i E corrosion curves** space, within the **Mixed-potential corrosion** sub-domain of **Materials Science**. Measurements consist of ions detected after acceleration or extraction via a **tafel eis electrochemical** sensing mechanism. The forward operator applies, in order: E · butler volmer operator; E · mass transport operator; O · composite method operator; O · corrosion rate operator. Observations are corrupted by additive Gaussian noise. Well-posed for simple cells; multi-metal galvanic and pitting are non-linear/multi-stable. ## ⚙ 2. Forward Model Physical chain: **x** → E · butler volmer → E · mass transport → O · composite method → O · corrosion rate → **y** (detector). ``` y = `O.corrosion_rate` `O.composite_method` `E.mass_transport` `E.butler_volmer` x + n, n ~ 𝒩(0, σ²) ``` **Measurement DAG:** | Primitive | What it does | |---|---| | `E.butler_volmer` | E · butler volmer operator | | `E.mass_transport` | E · mass transport operator | | `O.composite_method` | O · composite method operator | | `O.corrosion_rate` | O · corrosion rate operator | ## 🔬 3. Physics Fingerprint | Property | Value | |---|---| | Domain | Materials Science | | Sub domain | Mixed-potential corrosion | | Carrier | ion | | Problem class | nonlinear_inverse | | Solution space | i_E_corrosion_curves | | Noise model | gaussian | | Integration axis | potential_time | | Difficulty delta | 3 | | L dag | 3.3 | ## 📡 4. Measurement Model Well-posed for simple cells; multi-metal galvanic and pitting are non-linear/multi-stable. | Metric | Value | |---|---| | Metric | i_corr_log_error | | Secondary | Tafel_slope_error | ## 📏 5. Operating Range (Ω) **Center problem class:** `corrosion` · **Forward operator:** `corrosion_forward` **Center point:** | Parameter | Unit | Value | |---|---|---| | Ph | — | 7 | | T k | — | 298 | | Cl mm | mm | 100 | | N data | — | 200 | | Dissolved o2 ppm | — | 8 | **Allowed bounds:** | Parameter | Unit | Range | |---|---|---| | Ph | — | 0 – 14 | | T k | — | 273 – 373 | | Cl mm | mm | 0 – 10000 | | N data | — | 50 – 5000 | | Dissolved o2 ppm | — | 0 – 50 | ## 🎯 6. Tolerance (ε) **Center tolerance:** log10(i_corr) error <= 0.1 | Metric | Range | |---|---| | I corr log error | 0.02 – 1.0 | ## ⚖ 7. Hardness Function Hardness scales as **`epsilon_fn`** on **i_corr_log_error**, with κ = `200` and δ = `3`. ## 💾 8. Reference Dataset - **primary** · weight 1.0 · IPFS _(not pinned yet)_ ## 9. On-chain Registration - **Chain hash:** `0xba8a4cab9f747308d4fa1594eb6fbe66777bb4df3146e9b84338b82b5e8c3936` - **Chain tx hash:** `0xb312a07c8a6fd011f3ace43a7d344be02e86a0d77f04a1bbfeea061aa735fd6e` - **Chain block:** `41554129` --- ## File Mapping This bundle consists of: `L1-339.md`, `L1-339.json`. | File | Role | How to regenerate | |------|------|-------------------| | `L1-339.md` | Source of truth — edit this | Human or LLM | | `L1-339.json` | Structured metadata for the registry | LLM regenerates from the sections above | **Prompt for your LLM after editing this Markdown:** > Read the attached Markdown. Regenerate the sibling `.json` so every field matches. > Preserve the schema documented in the rows above. > Output each file in its own fenced code block tagged with the filename. > Output only the JSON object. _This Markdown was auto-synthesized from the catalog row for `L1-339`._ _Edit it, regenerate the JSON, and submit at [/submit](/submit) to claim the artifact._

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Read the attached Markdown (L1-339.md).
Regenerate L1-339.json so every field matches the Markdown.
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Output each file in its own fenced code block tagged with the filename.

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L2-339-001 Electrochemical Corrosion Kinetics Mismatch-Only Spec

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📋 JSON metadata

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  "artifact_id": "L1-339",
  "chain_block": 41554129,
  "chain_hash": "0xba8a4cab9f747308d4fa1594eb6fbe66777bb4df3146e9b84338b82b5e8c3936",
  "chain_tx_hash": "0xb312a07c8a6fd011f3ace43a7d344be02e86a0d77f04a1bbfeea061aa735fd6e",
  "domain": "Materials Science",
  "hardness_fn": {
    "delta": 3,
    "kappa": 200,
    "metric": "i_corr_log_error",
    "type": "epsilon_fn"
  },
  "initiator_dataset": [
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      "ipfs_cid": null,
      "license_hash": null,
      "name": "primary",
      "weight": 1.0
    }
  ],
  "layer": "L1",
  "observable_profile": {
    "metric": "i_corr_log_error",
    "regime": "Well-posed for simple cells; multi-metal galvanic and pitting are non-linear/multi-stable.",
    "secondary": "Tafel_slope_error"
  },
  "physics_fingerprint": {
    "L_DAG": 3.3,
    "carrier": "ion",
    "difficulty_delta": 3,
    "domain": "Materials Science",
    "integration_axis": "potential_time",
    "noise_model": "gaussian",
    "primitives": [
      "E.butler_volmer",
      "E.mass_transport",
      "O.composite_method",
      "O.corrosion_rate"
    ],
    "problem_class": "nonlinear_inverse",
    "sensing_mechanism": "tafel_eis_electrochemical",
    "solution_space": "i_E_corrosion_curves",
    "sub_domain": "Mixed-potential corrosion",
    "title": "Electrochemical Corrosion Kinetics"
  },
  "size_tiers": {
    "allowed_forward_operators": [
      "corrosion_forward"
    ],
    "allowed_omega_dimensions": [
      "T_K",
      "Cl_mM",
      "pH",
      "dissolved_O2_ppm",
      "N_data"
    ],
    "allowed_problem_classes": [
      "corrosion"
    ],
    "center_spec": {
      "epsilon_fn_center": "log10(i_corr) error \u003c= 0.1",
      "forward_operator": "corrosion_forward",
      "input_format": "measurement_only",
      "omega": {
        "Cl_mM": 100,
        "N_data": 200,
        "T_K": 298,
        "dissolved_O2_ppm": 8,
        "pH": 7
      },
      "problem_class": "corrosion"
    },
    "epsilon_bounds": {
      "i_corr_log_error": [
        0.02,
        1.0
      ]
    },
    "omega_bounds": {
      "Cl_mM": [
        0,
        10000
      ],
      "N_data": [
        50,
        5000
      ],
      "T_K": [
        273,
        373
      ],
      "dissolved_O2_ppm": [
        0,
        50
      ],
      "pH": [
        0,
        14
      ]
    }
  },
  "staked_pwm": 0.0,
  "status": "testnet",
  "sub_domain": "Mixed-potential corrosion",
  "title": "Electrochemical Corrosion Kinetics"
}

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