{"id":"https://openalex.org/W7123536745","doi":"https://doi.org/10.1016/j.optlastec.2026.114727","title":"Optimized processing parameters for crack-free fabrication of unweldable Inconel 738LC via directed energy deposition","display_name":"Optimized processing parameters for crack-free fabrication of unweldable Inconel 738LC via directed energy deposition","publication_year":2026,"publication_date":"2026-01-14","ids":{"openalex":"https://openalex.org/W7123536745","doi":"https://doi.org/10.1016/j.optlastec.2026.114727"},"language":"en","primary_location":{"id":"doi:10.1016/j.optlastec.2026.114727","doi":"https://doi.org/10.1016/j.optlastec.2026.114727","is_oa":true,"landing_page_url":"https://doi.org/10.1016/j.optlastec.2026.114727","pdf_url":null,"source":{"id":"https://openalex.org/S112574528","display_name":"Optics & Laser Technology","issn_l":"0030-3992","issn":["0030-3992","0374-3926","1878-7371","1879-2545"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-c","jufo-1","ki-jl-1","norway-1","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Optics & Laser Technology","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://doi.org/10.1016/j.optlastec.2026.114727","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5104805446","display_name":"Yusufu Ekubaru","orcid":"https://orcid.org/0009-0006-0555-5293","observed_orcids":["https://orcid.org/0009-0006-0555-5293"]},"institutions":[{"id":"https://openalex.org/I4210106587","display_name":"Nikon (Japan)","ror":"https://ror.org/01bvqg661","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210106587"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Yusufu Ekubaru","raw_affiliation_strings":["Development Department Advanced Manufacturing Business Unit, Nikon Corporation, 201-9, Miizugahara, Kumagaya-city, Saitama 360-8559, Japan"],"raw_orcid":"https://orcid.org/0009-0006-0555-5293","affiliations":[{"raw_affiliation_string":"Development Department Advanced Manufacturing Business Unit, Nikon Corporation, 201-9, Miizugahara, Kumagaya-city, Saitama 360-8559, Japan","institution_ids":["https://openalex.org/I4210106587"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103229887","display_name":"Takuya Nakabayashi","orcid":"https://orcid.org/0009-0001-6094-472X","observed_orcids":["https://orcid.org/0009-0001-6094-472X"]},"institutions":[{"id":"https://openalex.org/I4210106587","display_name":"Nikon (Japan)","ror":"https://ror.org/01bvqg661","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210106587"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Takuya Nakabayashi","raw_affiliation_strings":["Advanced Technology Research & Development Division, Nikon Corporation, 471, Nagaodai-cho, Sakae-ku, Yokohama-city, Kanagawa 244-8533, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Advanced Technology Research & Development Division, Nikon Corporation, 471, Nagaodai-cho, Sakae-ku, Yokohama-city, Kanagawa 244-8533, Japan","institution_ids":["https://openalex.org/I4210106587"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5122955881","display_name":"Yuta Aramaki","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210106587","display_name":"Nikon (Japan)","ror":"https://ror.org/01bvqg661","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210106587"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yuta Aramaki","raw_affiliation_strings":["Development Department Advanced Manufacturing Business Unit, Nikon Corporation, 201-9, Miizugahara, Kumagaya-city, Saitama 360-8559, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Development Department Advanced Manufacturing Business Unit, Nikon Corporation, 201-9, Miizugahara, Kumagaya-city, Saitama 360-8559, Japan","institution_ids":["https://openalex.org/I4210106587"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5065769757","display_name":"Tomoharu Fujiwara","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210106587","display_name":"Nikon (Japan)","ror":"https://ror.org/01bvqg661","country_code":"JP","type":"company","lineage":["https://openalex.org/I4210106587"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Tomoharu Fujiwara","raw_affiliation_strings":["Development Department Advanced Manufacturing Business Unit, Nikon Corporation, 201-9, Miizugahara, Kumagaya-city, Saitama 360-8559, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Development Department Advanced Manufacturing Business Unit, Nikon Corporation, 201-9, Miizugahara, Kumagaya-city, Saitama 360-8559, Japan","institution_ids":["https://openalex.org/I4210106587"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5029279744","display_name":"Behrang Poorganji","orcid":"https://orcid.org/0000-0001-8696-4297","observed_orcids":["https://orcid.org/0000-0001-8696-4297"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Behrang Poorganji","raw_affiliation_strings":["Technology Nikon AM, CA 90808, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Technology Nikon AM, CA 90808, USA","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5104805446"],"corresponding_institution_ids":["https://openalex.org/I4210106587"],"apc_list":{"value":3230,"currency":"USD","value_usd":3230},"apc_paid":{"value":3230,"currency":"USD","value_usd":3230},"fwci":7.9869,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.97160075,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":97,"max":98},"biblio":{"volume":"196","issue":null,"first_page":"114727","last_page":"114727"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10705","display_name":"Additive Manufacturing Materials and Processes","score":0.9970999956130981,"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":0.9970999956130981,"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":0.0020000000949949026,"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/T10834","display_name":"Welding Techniques and Residual Stresses","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/inconel-738lc","display_name":"Inconel 738LC","score":0.9679999947547913},{"id":"https://openalex.org/keywords/directed-energy-deposition","display_name":"directed energy deposition","score":0.953000009059906},{"id":"https://openalex.org/keywords/crack-suppression","display_name":"crack suppression","score":0.5559999942779541},{"id":"https://openalex.org/keywords/process-window","display_name":"process window","score":0.7900000214576721},{"id":"https://openalex.org/keywords/heat-input-reduction","display_name":"heat input reduction","score":0.859000027179718},{"id":"https://openalex.org/keywords/laser-power","display_name":"laser power","score":0.6370000243186951},{"id":"https://openalex.org/keywords/scan-parameters","display_name":"scanning parameters","score":0.9480000138282776},{"id":"https://openalex.org/keywords/elemental-segregation","display_name":"elemental segregation","score":0.6610000133514404},{"id":"https://openalex.org/keywords/heat-affected-zone","display_name":"heat-affected zone","score":0.9860000014305115},{"id":"https://openalex.org/keywords/equiaxed-grain-structure","display_name":"equiaxed grain structure","score":0.8650000095367432}],"concepts":[{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.826200008392334},{"id":"https://openalex.org/C2778703219","wikidata":"https://www.wikidata.org/wiki/Q898562","display_name":"Inconel","level":3,"score":0.8248999714851379},{"id":"https://openalex.org/C136525101","wikidata":"https://www.wikidata.org/wiki/Q5428139","display_name":"Fabrication","level":3,"score":0.7179999947547913},{"id":"https://openalex.org/C207055975","wikidata":"https://www.wikidata.org/wiki/Q637345","display_name":"Superalloy","level":3,"score":0.6100999712944031},{"id":"https://openalex.org/C81710450","wikidata":"https://www.wikidata.org/wiki/Q5384437","display_name":"Equiaxed crystals","level":3,"score":0.5666999816894531},{"id":"https://openalex.org/C64297162","wikidata":"https://www.wikidata.org/wiki/Q1987070","display_name":"Deposition (geology)","level":3,"score":0.5511000156402588},{"id":"https://openalex.org/C191897082","wikidata":"https://www.wikidata.org/wiki/Q11467","display_name":"Metallurgy","level":1,"score":0.5020999908447266},{"id":"https://openalex.org/C58396970","wikidata":"https://www.wikidata.org/wiki/Q212749","display_name":"Cracking","level":2,"score":0.4205999970436096},{"id":"https://openalex.org/C88504338","wikidata":"https://www.wikidata.org/wiki/Q1340805","display_name":"Weldability","level":3,"score":0.39959999918937683},{"id":"https://openalex.org/C204530211","wikidata":"https://www.wikidata.org/wiki/Q752823","display_name":"Thermal","level":2,"score":0.3652999997138977},{"id":"https://openalex.org/C2776020425","wikidata":"https://www.wikidata.org/wiki/Q25045309","display_name":"Inconel 625","level":3,"score":0.3612000048160553},{"id":"https://openalex.org/C192191005","wikidata":"https://www.wikidata.org/wiki/Q466491","display_name":"Grain size","level":2,"score":0.3361000120639801},{"id":"https://openalex.org/C2777441419","wikidata":"https://www.wikidata.org/wiki/Q16969460","display_name":"Process window","level":3,"score":0.3100000023841858},{"id":"https://openalex.org/C51576277","wikidata":"https://www.wikidata.org/wiki/Q900134","display_name":"Physical vapor deposition","level":3,"score":0.3091000020503998},{"id":"https://openalex.org/C186370098","wikidata":"https://www.wikidata.org/wiki/Q442787","display_name":"Energy (signal processing)","level":2,"score":0.29179999232292175},{"id":"https://openalex.org/C87976508","wikidata":"https://www.wikidata.org/wiki/Q1498213","display_name":"Microstructure","level":2,"score":0.29159998893737793},{"id":"https://openalex.org/C3020116064","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Heat generation","level":2,"score":0.2757999897003174},{"id":"https://openalex.org/C2987263936","wikidata":"https://www.wikidata.org/wiki/Q10843872","display_name":"Materials processing","level":2,"score":0.2754000127315521},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.27489998936653137},{"id":"https://openalex.org/C78519656","wikidata":"https://www.wikidata.org/wiki/Q101333","display_name":"Mechanical engineering","level":1,"score":0.27300000190734863},{"id":"https://openalex.org/C186937647","wikidata":"https://www.wikidata.org/wiki/Q1796959","display_name":"Heat sink","level":2,"score":0.2685999870300293},{"id":"https://openalex.org/C107861326","wikidata":"https://www.wikidata.org/wiki/Q209233","display_name":"Thermal energy","level":2,"score":0.26420000195503235},{"id":"https://openalex.org/C423512","wikidata":"https://www.wikidata.org/wiki/Q383973","display_name":"Electricity generation","level":3,"score":0.2621000111103058},{"id":"https://openalex.org/C72293138","wikidata":"https://www.wikidata.org/wiki/Q909741","display_name":"Temperature measurement","level":2,"score":0.2581000030040741},{"id":"https://openalex.org/C72832162","wikidata":"https://www.wikidata.org/wiki/Q2131545","display_name":"Rapid thermal processing","level":3,"score":0.25290000438690186}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/j.optlastec.2026.114727","doi":"https://doi.org/10.1016/j.optlastec.2026.114727","is_oa":true,"landing_page_url":"https://doi.org/10.1016/j.optlastec.2026.114727","pdf_url":null,"source":{"id":"https://openalex.org/S112574528","display_name":"Optics & Laser Technology","issn_l":"0030-3992","issn":["0030-3992","0374-3926","1878-7371","1879-2545"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-c","jufo-1","ki-jl-1","norway-1","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Optics & Laser Technology","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1016/j.optlastec.2026.114727","doi":"https://doi.org/10.1016/j.optlastec.2026.114727","is_oa":true,"landing_page_url":"https://doi.org/10.1016/j.optlastec.2026.114727","pdf_url":null,"source":{"id":"https://openalex.org/S112574528","display_name":"Optics & Laser Technology","issn_l":"0030-3992","issn":["0030-3992","0374-3926","1878-7371","1879-2545"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-c","jufo-1","ki-jl-1","norway-1","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Optics & Laser Technology","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Industry, innovation and infrastructure","score":0.5378999710083008,"id":"https://metadata.un.org/sdg/9"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":34,"referenced_works":["https://openalex.org/W621638351","https://openalex.org/W2011079205","https://openalex.org/W2014984027","https://openalex.org/W2068690468","https://openalex.org/W2088984019","https://openalex.org/W2408619629","https://openalex.org/W2618992957","https://openalex.org/W2758567842","https://openalex.org/W2802807194","https://openalex.org/W2883146925","https://openalex.org/W2897923422","https://openalex.org/W2954552741","https://openalex.org/W2954653032","https://openalex.org/W2965365109","https://openalex.org/W3028585051","https://openalex.org/W3091856074","https://openalex.org/W3152712877","https://openalex.org/W3155382531","https://openalex.org/W3167891248","https://openalex.org/W3214617556","https://openalex.org/W4205678306","https://openalex.org/W4220833338","https://openalex.org/W4221084942","https://openalex.org/W4285033659","https://openalex.org/W4286639432","https://openalex.org/W4297150780","https://openalex.org/W4378674425","https://openalex.org/W4385212941","https://openalex.org/W4385813153","https://openalex.org/W4388485789","https://openalex.org/W4388633718","https://openalex.org/W4392511062","https://openalex.org/W4394018936","https://openalex.org/W4402512116"],"related_works":["https://openalex.org/W4417014739","https://openalex.org/W4413937729","https://openalex.org/W7204100904","https://openalex.org/W4417503422","https://openalex.org/W6949677487","https://openalex.org/W4401378513","https://openalex.org/W3091856074","https://openalex.org/W4407943963","https://openalex.org/W4411022699","https://openalex.org/W4404813597"],"abstract_inverted_index":{"This":[0,83],"study":[1],"establishes":[2],"a":[3,18,52,117,133],"comprehensive":[4],"processing":[5,130],"window":[6],"(PW)":[7],"for":[8,137],"the":[9,41,90,93,138,148],"directed":[10],"energy":[11],"deposition":[12],"(DED)":[13],"of":[14,55,92,141,151],"Inconel":[15],"738LC":[16],"(IN738LC),":[17],"\u03b3\u2019-precipitation-strengthened":[19,142],"superalloy":[20],"traditionally":[21],"considered":[22],"unweldable":[23],"due":[24],"to":[25,44],"its":[26],"high":[27],"crack":[28],"susceptibility.":[29],"To":[30],"address":[31],"this":[32],"challenge,":[33],"we":[34,64],"focus":[35],"on":[36,61],"minimizing":[37],"heat":[38,72,126],"input":[39,127],"as":[40],"key":[42],"strategy":[43,136],"suppress":[45],"cracking":[46],"and":[47,58,79,96],"enhance":[48],"microstructural":[49,62,99],"quality.":[50],"Through":[51],"systematic":[53],"investigation":[54],"thermal":[56],"conditions":[57],"their":[59],"influence":[60],"evolution,":[63],"developed":[65],"an":[66],"optimized":[67,80,129],"PW":[68,106],"characterized":[69],"by":[70,109],"low":[71],"input,":[73],"achieved":[74],"through":[75,128],"lower":[76],"laser":[77],"power":[78],"scanning":[81],"parameters.":[82],"approach":[84],"effectively":[85],"minimized":[86],"elemental":[87],"segregation,":[88],"reduced":[89],"size":[91],"heat-affected":[94],"zone,":[95],"promoted":[97],"favorable":[98],"features,":[100],"including":[101,116],"equiaxed":[102],"grain":[103],"structures.":[104],"The":[105],"was":[107],"validated":[108],"successfully":[110],"fabricating":[111],"crack-free":[112,139],"high-density":[113],"(>99.5%)":[114],"components,":[115],"prototype":[118],"turbine":[119],"blade.":[120],"These":[121],"findings":[122],"confirm":[123],"that":[124],"reducing":[125],"parameters":[131],"is":[132],"highly":[134],"effective":[135],"fabrication":[140],"superalloys,":[143],"enabling":[144],"novel":[145],"possibilities":[146],"in":[147],"additive":[149],"manufacturing":[150],"high-performance":[152],"components.":[153]},"counts_by_year":[{"year":2026,"cited_by_count":5}],"updated_date":"2026-11-10T11:39:43.021295","created_date":"2026-01-14T00:00:00"}