{"id":"https://openalex.org/W6983300698","doi":null,"title":"Manipulating the microstructure and mechanical properties of 18Ni-350 maraging steel through optimizing laser powder bed fusion process and post-heat treatment","display_name":"Manipulating the microstructure and mechanical properties of 18Ni-350 maraging steel through optimizing laser powder bed fusion process and post-heat treatment","publication_year":2024,"publication_date":"2024-01-01","ids":{"openalex":"https://openalex.org/W6983300698"},"language":"en","primary_location":{"id":"pmh:oai:dr.ntu.edu.sg:10356/177858","doi":null,"is_oa":false,"landing_page_url":"https://hdl.handle.net/10356/177858","pdf_url":null,"source":{"id":"https://openalex.org/S4306402609","display_name":"DR-NTU (Nanyang Technological University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I172675005","host_organization_name":"Nanyang Technological University","host_organization_lineage":["https://openalex.org/I172675005"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Final Year Project (FYP)"},"volume":null,"type":"report","is_traditional":false,"indexed_in":[],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":null,"display_name":"Yang, Zhenyong","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Yang, Zhenyong","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":true,"primary_topic":{"id":"https://openalex.org/T10705","display_name":"Additive Manufacturing Materials and Processes","score":0.9994999766349792,"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/T10705","display_name":"Additive Manufacturing Materials and Processes","score":0.9994999766349792,"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/T10386","display_name":"Microstructure and Mechanical Properties of Steels","score":9.999999747378752e-05,"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":9.999999747378752e-05,"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/laser-powder-bed-fusion","display_name":"laser powder bed fusion","score":0.9990000128746033},{"id":"https://openalex.org/keywords/additive-manufacturing","display_name":"additive manufacturing","score":0.5979999899864197},{"id":"https://openalex.org/keywords/microstructure-control","display_name":"microstructure control","score":0.7319999933242798},{"id":"https://openalex.org/keywords/post-heat-treatment","display_name":"post-heat treatment","score":0.7979999780654907},{"id":"https://openalex.org/keywords/peak-aging","display_name":"peak aging","score":0.7409999966621399},{"id":"https://openalex.org/keywords/melt-pool-shape","display_name":"melt pool shape","score":0.7269999980926514},{"id":"https://openalex.org/keywords/cellular-microstructure","display_name":"cellular microstructure","score":0.6959999799728394},{"id":"https://openalex.org/keywords/porosity","display_name":"porosity","score":0.9639999866485596},{"id":"https://openalex.org/keywords/microhardness","display_name":"microhardness","score":0.9570000171661377},{"id":"https://openalex.org/keywords/tensile-properties","display_name":"tensile properties","score":0.9950000047683716},{"id":"https://openalex.org/keywords/process-parameter-optimization","display_name":"process parameter optimization","score":0.7279999852180481},{"id":"https://openalex.org/keywords/processing-microstructure-property-relationships","display_name":"processing-microstructure-property relationships","score":0.8939999938011169}],"concepts":[{"id":"https://openalex.org/C2779857867","wikidata":"https://www.wikidata.org/wiki/Q1855903","display_name":"Maraging steel","level":2,"score":0.9351999759674072},{"id":"https://openalex.org/C87976508","wikidata":"https://www.wikidata.org/wiki/Q1498213","display_name":"Microstructure","level":2,"score":0.8808000087738037},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.8166000247001648},{"id":"https://openalex.org/C136525101","wikidata":"https://www.wikidata.org/wiki/Q5428139","display_name":"Fabrication","level":3,"score":0.683899998664856},{"id":"https://openalex.org/C96288455","wikidata":"https://www.wikidata.org/wiki/Q487286","display_name":"Austenite","level":3,"score":0.6089000105857849},{"id":"https://openalex.org/C18747287","wikidata":"https://www.wikidata.org/wiki/Q488950","display_name":"Martensite","level":3,"score":0.5814999938011169},{"id":"https://openalex.org/C191897082","wikidata":"https://www.wikidata.org/wiki/Q11467","display_name":"Metallurgy","level":1,"score":0.5745000243186951},{"id":"https://openalex.org/C112950240","wikidata":"https://www.wikidata.org/wiki/Q76005","display_name":"Ultimate tensile strength","level":2,"score":0.5475999712944031},{"id":"https://openalex.org/C158525013","wikidata":"https://www.wikidata.org/wiki/Q2593739","display_name":"Fusion","level":2,"score":0.5169000029563904},{"id":"https://openalex.org/C98045186","wikidata":"https://www.wikidata.org/wiki/Q205663","display_name":"Process (computing)","level":2,"score":0.41179999709129333},{"id":"https://openalex.org/C44280652","wikidata":"https://www.wikidata.org/wiki/Q104837","display_name":"Phase (matter)","level":2,"score":0.3885999917984009},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.3522000014781952},{"id":"https://openalex.org/C520434653","wikidata":"https://www.wikidata.org/wiki/Q38867","display_name":"Laser","level":2,"score":0.34850001335144043},{"id":"https://openalex.org/C204530211","wikidata":"https://www.wikidata.org/wiki/Q752823","display_name":"Thermal","level":2,"score":0.3156999945640564},{"id":"https://openalex.org/C31555180","wikidata":"https://www.wikidata.org/wiki/Q3523867","display_name":"Material properties","level":2,"score":0.2939999997615814},{"id":"https://openalex.org/C18762648","wikidata":"https://www.wikidata.org/wiki/Q42213","display_name":"Work (physics)","level":2,"score":0.2919999957084656},{"id":"https://openalex.org/C7794659","wikidata":"https://www.wikidata.org/wiki/Q726605","display_name":"Powder metallurgy","level":3,"score":0.2773999869823456}],"mesh":[],"locations_count":1,"locations":[{"id":"pmh:oai:dr.ntu.edu.sg:10356/177858","doi":null,"is_oa":false,"landing_page_url":"https://hdl.handle.net/10356/177858","pdf_url":null,"source":{"id":"https://openalex.org/S4306402609","display_name":"DR-NTU (Nanyang Technological University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I172675005","host_organization_name":"Nanyang Technological University","host_organization_lineage":["https://openalex.org/I172675005"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Final Year Project (FYP)"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W7011552025","https://openalex.org/W4412109299","https://openalex.org/W4410381825","https://openalex.org/W4380028354","https://openalex.org/W4393029633","https://openalex.org/W4220746192","https://openalex.org/W4417016372","https://openalex.org/W4409916488","https://openalex.org/W3088832667","https://openalex.org/W4396645070"],"abstract_inverted_index":{"Additive":[0],"manufacturing":[1,6],"(AM)":[2],"has":[3,25],"revolutionised":[4],"conventional":[5,50],"(CM)":[7],"processes":[8],"by":[9,185],"enabling":[10],"the":[11,55,66,79,83,92,106,124,159,170,187],"production":[12],"of":[13,68,78,101,128,158,178,220],"complex":[14,47],"metal":[15],"parts":[16],"directly":[17],"from":[18],"digital":[19],"designs.":[20],"In":[21,109],"recent":[22],"years,":[23],"there":[24],"been":[26],"a":[27,217],"growing":[28],"interest":[29],"in":[30,73,141],"fabricating":[31,221],"maraging":[32,70,113,222],"steels":[33],"via":[34,49],"various":[35,164],"AM":[36,63,69],"techniques,":[37],"as":[38,117],"their":[39],"ultrahigh":[40],"hardness":[41],"makes":[42],"it":[43,88,99],"challenging":[44],"to":[45,76,90,104,122,134,203,216],"produce":[46,135],"shapes":[48],"thermal-mechanical":[51],"processing.":[52],"However,":[53],"given":[54],"disparate":[56],"solidification":[57],"behaviour":[58],"and":[59,64,94,120,138,144,151,155,176,211,226],"cooling":[60],"rate":[61],"between":[62],"CM,":[65],"microstructure":[67,137],"steel":[71,114,223],"is":[72,100,115],"distinct":[74,199],"contrast":[75],"that":[77,169],"CM":[80],"ones.":[81],"Moreover,":[82,195],"flexible":[84],"fabrication":[85,188],"parameters":[86,127,189],"make":[87],"possible":[89],"manipulate":[91],"microstructures":[93,200],"thus":[95],"mechanical":[96,139],"properties.":[97],"Therefore,":[98],"great":[102],"significance":[103],"investigate":[105],"process-microstructure-property":[107],"relationship.":[108],"this":[110],"study,":[111],"18Ni-350":[112],"taken":[116],"an":[118],"example":[119],"aimed":[121],"explore":[123],"optimised":[125],"processing":[126],"laser":[129],"powder":[130],"bed":[131],"fusion":[132],"(L-PBF)":[133],"desired":[136],"properties":[140,157],"both":[142],"as-printed":[143],"heat-treated":[145],"conditions.":[146],"The":[147],"porosity,":[148],"morphology,":[149],"martensite":[150],"austenite":[152],"proportions,":[153],"microhardness,":[154],"tensile":[156],"material":[160],"are":[161],"investigated":[162],"using":[163,224],"methods.":[165],"Results":[166],"have":[167],"shown":[168],"melt":[171],"pool":[172],"shape,":[173],"phase":[174],"fractions,":[175],"morphologies":[177],"cellular":[179],"structures":[180],"can":[181],"be":[182],"flexibly":[183],"adjusted":[184],"manipulating":[186],"while":[190],"ensuring":[191],"high":[192],"relative":[193],"density.":[194],"these":[196],"samples":[197],"with":[198],"react":[201],"differently":[202],"heat":[204],"treatment,":[205],"showing":[206],"varying":[207],"peak-aging":[208],"time,":[209],"strength,":[210],"ductility.":[212],"These":[213],"findings":[214],"contribute":[215],"better":[218],"understanding":[219],"L-PBF":[225],"its":[227],"future":[228],"applications.":[229]},"counts_by_year":[],"updated_date":"2026-07-14T23:32:53.992493","created_date":"2025-10-10T00:00:00"}