Muna amfani da kukis don inganta ƙwarewar ku.Ta ci gaba da bincika wannan rukunin yanar gizon, kun yarda da amfani da kukis.Ƙarin Bayani.
A cikin wani labarin kwanan nan da aka buga a cikin Mujallar Additive Manufacturing Letters, masu bincike sun tattauna tsarin narkewar Laser don abubuwan da aka haɗa da jan karfe bisa 316L bakin karfe.
Bincike: Haɗin gwiwar 316L bakin karfe-tagulla hadaddiyar giyar ta hanyar narkewar Laser.Hoton hoto: Pedal in stock / Shutterstock.com
Ko da yake canja wurin zafi a cikin wani ƙarfi mai kama da juna yana yaduwa, zafi zai iya tafiya ta cikin ƙaƙƙarfan taro tare da mafi ƙarancin juriya.A cikin radiators kumfa na karfe, ana bada shawarar yin amfani da anisotropy na thermal conductivity da permeability don ƙara yawan canjin zafi.
Bugu da kari, ana sa ran gudanar da yanayin zafi na anisotropic zai taimaka wajen rage hasarar da ke haifarwa ta hanyar axial conduction a cikin ƙananan masu musayar zafi.An yi amfani da hanyoyi daban-daban don canza yanayin zafi na gami da karafa.Babu ɗayan waɗannan hanyoyin da suka dace don haɓaka dabarun sarrafa jagora don kwararar zafi a cikin abubuwan ƙarfe.
Metal Matrix Composites (MMC) ana samar da su daga foda mai niƙa ta amfani da Laser narkewa a cikin foda gado (LPBF) fasaha.Wani sabon hanyar LPBF na matasan kwanan nan an gabatar da shawarar ƙirƙira ODS 304 SS alloys ta hanyar doping yttrium oxide precursors a cikin Layer na 304 SS foda kafin densification Laser ta amfani da piezoelectric inkjet fasahar.Amfanin wannan tsarin shine ikon zaɓin daidaita kayan kayan abu a wurare daban-daban na Layer foda, wanda ke ba ku damar sarrafa kayan kayan aiki a cikin ƙarar aiki na kayan aiki.
Misalin tsari na hanyar gado mai zafi don (a) bayan dumama da (b) canza tawada.Hoton hoto: Murray, JW et al.Haruffa akan Ƙirƙirar Ƙarfafawa.
A cikin wannan binciken, marubutan sun yi amfani da tawada Cu inkjet don nuna hanyar narkewar Laser don samar da abubuwan haɗin ƙarfe na matrix tare da mafi kyawun yanayin zafi fiye da 316L bakin karfe.Don kwaikwayi hanyar haɗaɗɗun gadon inkjet-foda na matasan, an ɗora ruwan foda na bakin karfe tare da tawada precursor na jan karfe kuma an yi amfani da sabon tafki don sarrafa matakan oxygen yayin sarrafa Laser.
Ƙungiyar ta ƙirƙira nau'ikan nau'ikan bakin karfe na 316L tare da jan karfe ta amfani da tawada tawada tawada na jan karfe a cikin yanayin da ke kwaikwayi gami da laser a cikin gadon foda.Shirye-shiryen masu sarrafa sinadarai ta hanyar amfani da sabuwar tawada tawada da fasaha na LPBF waɗanda ke amfani da fa'idar tafiyar da yanayin zafi don rage girman gabaɗaya da nauyin injin.Yiwuwar ƙirƙirar kayan haɗin gwiwa ta amfani da tawada tawada an nuna.
Masu binciken sun mayar da hankali kan zaɓi na masu tawada Cu da tsarin masana'anta don samfuran gwaji masu haɗaka don tantance yawan kayan abu, microhardness, abun da ke ciki, da rarrabuwar zafi.An zaɓi tawada 'yan takara guda biyu bisa la'akari da kwanciyar hankali na iskar oxygen, ƙananan ko babu ƙari, dacewa tare da buƙatun tawada, da ragowar kaɗan bayan juyawa.
Tawada na farko na CufAMP suna amfani da tsarin jan karfe (Cuf) azaman gishirin jan karfe.Vinyltrimethylcopper (II) hexafluoroacetylacetonate (Cu (hfac) VTMS) wani mafarin tawada ne.An gudanar da gwajin matukin jirgi don ganin ko bushewa da ruɓewar tawada na haifar da ƙarin gurɓatawar tagulla saboda ɗaukar samfuran sinadarai idan aka kwatanta da bushewa na al'ada da bazuwar zafi.
Yin amfani da hanyoyi guda biyu, an yi microcoupons guda biyu da ƙananan tsarin su idan aka kwatanta da tasirin hanyar sauyawa.A nauyin 500 gf da lokacin riƙewa na 15 s, an auna Vickers microhardness (HV) a ɓangaren giciye na yankin fusion na samfurori guda biyu.
Tsari na saitin gwaji da matakan aiwatar da maimaitawa don ƙirƙira 316L SS-Cu samfuran haɗe-haɗe waɗanda aka ƙirƙira ta amfani da hanyar gado mai zafi.Hoton hoto: Murray, JW et al.Haruffa akan Ƙirƙirar Ƙarfafawa.
An gano cewa ma'aunin zafin jiki na abubuwan da aka haɗa shine 187% sama da na bakin karfe 316L, kuma microhardness yana da ƙasa da 39%.Nazarin microstructural ya nuna cewa rage raguwa na tsaka-tsakin zai iya inganta haɓakar thermal conductivity da kayan aikin injiniya na abubuwan haɗin gwiwa.Don kwararar zafin zafin jiki a cikin mai musayar zafi, ya zama dole don zaɓin ƙara ƙarfin ƙarfin zafin jiki na 316L bakin karfe.Kunshin yana da tasiri mai tasiri na thermal conductivity na 41.0 W/mK, 2.9 sau na 316L bakin karfe, da raguwar 39% a cikin taurin.
Idan aka kwatanta da ƙirƙira da annealed 316L bakin karfe, da microhardness na samfurin a cikin zafi Layer ne 123 ± 59 HV, wanda shi ne 39% kasa.Matsakaicin abin da aka haɗa na ƙarshe shine 12%, wanda ke da alaƙa da kasancewar ramummuka da tsagewa a mahaɗar tsakanin sassan SS da Cu.
Don samfuran bayan dumama da dumama Layer, an ƙaddara microhardness na sassan giciye na yankin fusion kamar 110 ± 61 HV da 123 ± 59 HV, bi da bi, wanda shine 45% da 39% ƙasa da 200 HV don ƙirƙira-annealed 316L bakin karfe.Saboda babban bambanci a cikin narkewar zafin jiki na Cu da 316L bakin karfe, kusan 315 ° C, fasa a cikin abubuwan da aka ƙirƙira sun samo asali ne sakamakon fashewar ruwa da ruwa ya haifar da ruwa na Cu.
Hoton BSE (hagu na sama) da taswirar abubuwa (Fe, Cu, O) bayan dumama samfurin, wanda aka samu ta hanyar bincike na WDS.Hoton hoto: Murray, JW et al.Haruffa akan Ƙirƙirar Ƙarfafawa.
A ƙarshe, wannan binciken yana nuna sabon tsarin don ƙirƙirar 316L SS-Cu composites tare da mafi kyawun yanayin zafi fiye da 316L SS ta amfani da tawada mai fesa.Ana yin wannan hadaddiyar ne ta hanyar sanya tawada a cikin akwatin safar hannu a mayar da shi zuwa tagulla, sannan a saka foda na bakin karfe a samansa, sannan a hadawa da yin magani a cikin na'urar walda.
Sakamakon farko ya nuna cewa tawada Cuf-AMP na tushen methanol na iya raguwa zuwa tagulla mai tsabta ba tare da samar da jan karfe oxide a cikin yanayi mai kama da tsarin LPBF ba.Hanyar gado mai zafi don amfani da jujjuya tawada yana haifar da ƙananan abubuwa tare da ƙarancin ɓatanci da ƙazanta fiye da hanyoyin dumama na al'ada.
Mawallafa sun lura cewa binciken da za a yi a nan gaba zai gano hanyoyin da za a rage yawan hatsi da kuma inganta narkewa da haɗuwa da sassan SS da Cu, da kuma kayan aikin injiniya na abubuwan da aka haɗa.
Murray JW, Speidel A., Spierings A. et al.Ƙirƙirar 316L bakin karfe-tauraron tagulla ta hanyar narkewar Laser.Tabbacin Gaskiyar Ƙirƙirar Ƙarfafawa 100058 (2022).https://www.sciencedirect.com/science/article/pii/S2772369022000329
Disclaimer: Ra'ayoyin da aka bayyana a nan na marubucin ne a cikin sirri kuma ba lallai ba ne su yi daidai da ra'ayin AZoM.com Limited T/A AZoNetwork, mai kuma ma'aikacin wannan gidan yanar gizon.Wannan ƙin yarda wani ɓangare ne na sharuɗɗan amfani da wannan rukunin yanar gizon.
Surbhi Jain marubucin fasaha ne mai zaman kansa wanda ke zaune a Delhi, Indiya.Tana da Ph.D.Yana da digiri na uku a fannin Physics daga Jami'ar Delhi kuma ya shiga cikin ayyukan kimiyya da al'adu da wasanni da yawa.Ilimin iliminta yana cikin binciken kimiyyar kayan aiki tare da ƙwarewa wajen haɓaka na'urorin gani da na'urori masu auna firikwensin.Ta na da kwarewa mai yawa a cikin rubuce-rubucen abun ciki, gyare-gyare, nazarin bayanan gwaji da gudanar da ayyukan, kuma ta buga labaran bincike na 7 a cikin mujallolin Scopus da aka kwatanta da kuma shigar da takardun izinin Indiya na 2 bisa ga aikin bincikenta.Tana da sha'awar karatu, rubutu, bincike da fasaha kuma tana jin daɗin dafa abinci, wasa, aikin lambu da wasanni.
Jainism, Surbhi.(Mayu 25, 2022).Narkewar Laser yana ba da damar samar da ƙarfafa bakin karfe da abubuwan haɗin jan karfe.AZ.An dawo da shi Disamba 25, 2022 daga https://www.azom.com/news.aspx?newsID=59155.
Jainism, Surbhi."Laser melting yana ba da damar samar da ƙarfafa bakin karfe da abubuwan haɗin jan karfe."AZ.Disamba 25, 2022.Disamba 25, 2022.
Jainism, Surbhi."Laser melting yana ba da damar samar da ƙarfafa bakin karfe da abubuwan haɗin jan karfe."AZ.https://www.azom.com/news.aspx?newsID=59155.(Tun daga Disamba 25, 2022).
Jainism, Surbhi.2022. Production na ƙarfafa bakin karfe / tagulla composites ta Laser narkewa.AZoM, an shiga 25 Disamba 2022, https://www.azom.com/news.aspx?newsID=59155.
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