{"id":"S85051957","label":"Fretting corrosion","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85051957","normalized_label":"fretting corrosion","broader":["http://id.loc.gov/authorities/subjects/sh85033050","http://id.loc.gov/authorities/subjects/sh85051971","http://id.loc.gov/authorities/subjects/sh85082765","http://id.loc.gov/authorities/subjects/sh85096307"],"aliases":["False brinelling","Friction oxidation","Rubbing corrosion","Wear oxidation"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85051957","provider":"lcsh","revision":"214a0b5c39246637","taxonomy_revision":"f050b5d4780b1289","title":"Fretting corrosion","url":"/topics/S85051957","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10090328451325248000","address_version":"morton4x16-v1","coordinates":[0,20,18216,54272],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}