MatSci-SAM
Definitions for martensite

Provenance: martensite

The published history of this term as a W3C PROV-O graph, including definitions and revisions, AI-assisted activity, examples and featured selections, comments, and votes. Click a node for details, or download the graph as PROV-O Turtle.

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  1. Term "martensite" created

    Jul 20, 2026 at 8:11 AM UTC

  2. Definition 1 · revision 1 writtenChristopher Rauch

    Jul 20, 2026 at 12:11 PM UTC

    Initial contribution A very hard structure that forms in steel when it is cooled down very quickly from a high temperature.

  3. Re-evaluation requested (round 2)Christopher Rauch

    Jul 20, 2026 at 12:12 PM UTC

    Good, but state that martensite is a body-centered tetragonal phase formed by a diffusionless shear transformation of austenite, and mention that martensitic transformations also occur in alloys other than steel.

  4. AI suggested a revision (round 2)gemma4:26brefine

    Jul 20, 2026 at 12:12 PM UTC

    A metastable, body-centered tetragonal (BCT) phase formed via a diffusionless, displacive shear transformation of austenite during rapid cooling; while most commonly associated with steels, martensitic transformations also occur in various …

  5. Definition 2 · revision 1 published with AI assistanceChristopher Rauchrevision 74

    Jul 20, 2026 at 12:13 PM UTC

    Accepted AI-assisted revision A metastable, body-centered tetragonal (BCT) phase formed via a diffusionless, displacive shear transformation of austenite during rapid cooling; while most commonly associated with steels, martensitic transformations also occur in various …

  6. Suggestion accepted (round 2)Christopher Rauch

    Jul 20, 2026 at 12:13 PM UTC

    A metastable, body-centered tetragonal (BCT) phase formed via a diffusionless, displacive shear transformation of austenite during rapid cooling; while most commonly associated with steels, martensitic transformations also occur in various …

  7. Upvoted definition 2 · revision 1A community member

    Jul 20, 2026 at 12:14 PM UTC

  8. Comment posted on definition 2 · revision 1Christopher Rauch

    Jul 20, 2026 at 12:14 PM UTC

    The BCT distortion comes from carbon trapped in octahedral interstitial sites. A future revision could distinguish lath and plate morphologies.