{"id":"https://openalex.org/W273629613","doi":null,"title":"Identification of Aircraft by Rockwell Test","display_name":"Identification of Aircraft by Rockwell Test","publication_year":1930,"publication_date":"1930-01-01","ids":{"openalex":"https://openalex.org/W273629613","mag":"273629613"},"language":"en","primary_location":{"id":"pmh:oai:casi.ntrs.nasa.gov:19930081205","doi":null,"is_oa":true,"landing_page_url":"http://hdl.handle.net/2060/19930081205","pdf_url":"http://hdl.handle.net/2060/19930081205","source":{"id":"https://openalex.org/S4306402118","display_name":"NASA Technical Reports Server (NASA)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I4210124779","host_organization_name":"National Aeronautics and Space Administration","host_organization_lineage":["https://openalex.org/I4210124779"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"CASI","raw_type":"NACA-TN-342"},"volume":null,"type":"article","is_traditional":true,"indexed_in":[],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://hdl.handle.net/2060/19930081205","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5030165633","display_name":"Horace C. Knerr","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Knerr, Horace","raw_affiliation_strings":["Metallurgical Labs., Inc"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Metallurgical Labs., Inc","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":["https://openalex.org/A5030165633"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.02142857,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10386","display_name":"Microstructure and Mechanical Properties of Steels","score":0.6909000277519226,"subfield":{"id":"https://openalex.org/subfields/2210","display_name":"Mechanical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10386","display_name":"Microstructure and Mechanical Properties of Steels","score":0.6909000277519226,"subfield":{"id":"https://openalex.org/subfields/2210","display_name":"Mechanical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10840","display_name":"High Temperature Alloys and Creep","score":0.050999999046325684,"subfield":{"id":"https://openalex.org/subfields/2210","display_name":"Mechanical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12169","display_name":"Non-Destructive Testing Techniques","score":0.028999999165534973,"subfield":{"id":"https://openalex.org/subfields/2210","display_name":"Mechanical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/aircraft-identification","display_name":"aircraft identification","score":0.6460000276565552},{"id":"https://openalex.org/keywords/rockwell-hardness-testing","display_name":"Rockwell hardness testing","score":0.7239999771118164},{"id":"https://openalex.org/keywords/chromium-molybdenum-steel","display_name":"chromium-molybdenum steel","score":0.8840000033378601},{"id":"https://openalex.org/keywords/tubing","display_name":"tubing","score":0.4620000123977661},{"id":"https://openalex.org/keywords/normalizing-heat-treatment","display_name":"normalizing heat treatment","score":0.7350000143051147},{"id":"https://openalex.org/keywords/thin-walled-tubes","display_name":"thin-walled tubes","score":0.6830000281333923}],"concepts":[{"id":"https://openalex.org/C96606946","wikidata":"https://www.wikidata.org/wiki/Q502723","display_name":"Rockwell scale","level":2,"score":0.9322035908699036},{"id":"https://openalex.org/C2777551473","wikidata":"https://www.wikidata.org/wiki/Q2093072","display_name":"Tube (container)","level":2,"score":0.6262732744216919},{"id":"https://openalex.org/C549387045","wikidata":"https://www.wikidata.org/wiki/Q1053","display_name":"Molybdenum","level":2,"score":0.49775293469429016},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.49457284808158875},{"id":"https://openalex.org/C191897082","wikidata":"https://www.wikidata.org/wiki/Q11467","display_name":"Metallurgy","level":1,"score":0.48270463943481445},{"id":"https://openalex.org/C116834253","wikidata":"https://www.wikidata.org/wiki/Q2039217","display_name":"Identification (biology)","level":2,"score":0.46053504943847656},{"id":"https://openalex.org/C28719098","wikidata":"https://www.wikidata.org/wiki/Q44946","display_name":"Point (geometry)","level":2,"score":0.451789915561676},{"id":"https://openalex.org/C78519656","wikidata":"https://www.wikidata.org/wiki/Q101333","display_name":"Mechanical engineering","level":1,"score":0.4043269157409668},{"id":"https://openalex.org/C66938386","wikidata":"https://www.wikidata.org/wiki/Q633538","display_name":"Structural engineering","level":1,"score":0.3940736651420593},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.34109771251678467},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.11538466811180115},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.066211998462677},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C59822182","wikidata":"https://www.wikidata.org/wiki/Q441","display_name":"Botany","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"pmh:oai:casi.ntrs.nasa.gov:19930081205","doi":null,"is_oa":true,"landing_page_url":"http://hdl.handle.net/2060/19930081205","pdf_url":"http://hdl.handle.net/2060/19930081205","source":{"id":"https://openalex.org/S4306402118","display_name":"NASA Technical Reports Server (NASA)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I4210124779","host_organization_name":"National Aeronautics and Space Administration","host_organization_lineage":["https://openalex.org/I4210124779"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"CASI","raw_type":"NACA-TN-342"}],"best_oa_location":{"id":"pmh:oai:casi.ntrs.nasa.gov:19930081205","doi":null,"is_oa":true,"landing_page_url":"http://hdl.handle.net/2060/19930081205","pdf_url":"http://hdl.handle.net/2060/19930081205","source":{"id":"https://openalex.org/S4306402118","display_name":"NASA Technical Reports Server (NASA)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I4210124779","host_organization_name":"National Aeronautics and Space Administration","host_organization_lineage":["https://openalex.org/I4210124779"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"CASI","raw_type":"NACA-TN-342"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W273629613.pdf","grobid_xml":"https://content.openalex.org/works/W273629613.grobid-xml"},"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W7139400455","https://openalex.org/W251579280","https://openalex.org/W2624975022","https://openalex.org/W4251113677","https://openalex.org/W2027285965","https://openalex.org/W4414753647","https://openalex.org/W7151676250","https://openalex.org/W4239530042","https://openalex.org/W2569236910","https://openalex.org/W1976663601"],"abstract_inverted_index":{"A":[0],"large":[1],"number":[2],"of":[3,9,39,55,66,68,80],"tests":[4],"were":[5,47],"made":[6],"on":[7],"tubes":[8,46],"1025":[10],"and":[11,17,20,99,123],"4130X":[12],"steel,":[13],"in":[14,53,117],"various":[15],"diameters":[16],"wall":[18],"thicknesses,":[19],"after":[21,57],"diverse":[22],"heat":[23],"treatments.":[24],"The":[25,59,78,88,112],"Rockwell":[26],"B":[27],"scale":[28],"was":[29],"employed,":[30],"as":[31,85,142],"being":[32],"the":[33,37,63,102,105,121,128,134,139,145],"best":[34],"suited":[35],"to":[36,49,108,143],"ranges":[38],"hardness":[40,52],"encountered.":[41],"Only":[42],"satisfactory":[43,82],"chrome":[44,69],"molybdenum":[45,70],"found":[48],"show":[50],"a":[51,74,81],"excess":[54],"90-B":[56],"normalizing.":[58],"method":[60],"therefore":[61],"provided":[62],"desired":[64],"means":[65],"identification":[67],"steel.":[71],"It":[72,94],"is":[73,107],"qualitative":[75],"test":[76,83,106],"only.":[77],"conditions":[79],"are":[84],"follows.":[86],"1)":[87],"tubing":[89],"must":[90,95,114,124,136],"be":[91,96,109,115],"normalized.":[92],"2)":[93],"clean":[97],"inside":[98],"out":[100],"at":[101],"point":[103],"where":[104],"made.":[110],"3)":[111],"tube":[113,140],"held":[116],"correct":[118],"alignment":[119],"with":[120],"penetrator":[122],"not":[125],"move":[126],"during":[127],"test.":[129],"4)":[130],"For":[131],"thin-walled":[132],"tubes,":[133],"anvil":[135],"extend":[137],"within":[138],"so":[141],"support":[144],"wall.":[146]},"counts_by_year":[],"updated_date":"2026-11-01T11:40:01.658920","created_date":"2016-06-24T00:00:00"}
