et

kuumpragu

1

Terminological databases

Materjalitehnika terminibaas

ID 670601 Last modified 28.12.2024
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Domain gas weldingarc weldingmaterials science
hot crack preferred
  • materjali katkevus, mis esineb kõrgetel temperatuuridel piki terapiire (dendriitide piiridel) kui deformatsioonide tase või deformatsioonide kiirus ületab kindlat taset
  • cracks that develop immediately after welds are completed and, sometimes, while the welds are being made
kuumpragu
hot crack preferred
centerline crack

Materjalitehnika terminibaas

ID 673763 Last modified 22.07.2024
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Domain castingsteel casting
hot crack preferred
hot tear problematic
  • takistatud tardkahanemisest põhjustatud, kõrgetel temperatuuridel moodustunud pragu valandites (vrd kristallumispragu, külmpragu)
  • cracks formed in a cast metal because of internal stresses developed upon cooling following solidification (compare: hot tear, cold crack)
    Good to know
    • A hot crack is less open than a hot tear and usually exhibits less oxidation and decarburization along fracture surface.
kuumpragu
hot crack preferred
hot tear problematic

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