Pith Number

pith:3CDXWSYN

pith:2026:3CDXWSYN6RBVT333LHC24PEQZL

not attested not anchored not stored refs pending

Corrosion Evolution of T91 Steel in Static Lead-Bismuth Eutectic Under an Oxidising Environment

Felix Hofmann, Michael P. Moody, Michael P. Short, Minyi Zhang, Paul A.J. Bagot, Weiyue Zhou

T91 steel forms an iron-enriched BCC surface layer in oxidizing lead-bismuth eutectic, with oxide scale stability deciding whether corrosion stays intergranular or spreads.

arxiv:2602.19642 v3 · 2026-02-23 · cond-mat.mtrl-sci

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\usepackage{pith}
\pithnumber{3CDXWSYN6RBVT333LHC24PEQZL}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

A stable, coherent oxide scale appears to be the deciding factor that controls whether intergranular LBE attack occurs or not. Most surprisingly, a layer of iron enriched body-centred cubic phase forms on the surface of LBE-corroded T91 at these conditions, contradicting previous studies, which reported only oxide-based surface layers.

C2weakest assumption

That the observed iron-enriched BCC surface phase and the martensite decomposition slowing effect are intrinsic to the oxidizing LBE environment rather than artifacts of sample preparation, analysis technique, or limited test durations and temperatures.

C3one line summary

T91 steel in oxidizing LBE shows grain-boundary corrosion that slows via localized Cr depletion and martensite decomposition, controlled by a coherent oxide scale, and develops an iron-enriched BCC surface phase contradicting prior oxide-only reports.

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-06-05T01:15:22.214191Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8877b4b0df44359ef7b59c5ae3c90caf426722cdfd75727d9451eb045ffa54d

Aliases

arxiv: 2602.19642 · arxiv_version: 2602.19642v3 · doi: 10.48550/arxiv.2602.19642 · pith_short_12: 3CDXWSYN6RBV · pith_short_16: 3CDXWSYN6RBVT333 · pith_short_8: 3CDXWSYN

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/3CDXWSYN6RBVT333LHC24PEQZL \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: d8877b4b0df44359ef7b59c5ae3c90caf426722cdfd75727d9451eb045ffa54d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dfcb3ec7e6a8e1504dad3f0c019c38de9800db3b29127445005adec385ad43cb",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2026-02-23T09:40:08Z",
    "title_canon_sha256": "99a9d203c520ee96e6e93732bfd5e791746fb6ebb27b904fcfb08f433151ab41"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.19642",
    "kind": "arxiv",
    "version": 3
  }
}