Muna amfani da kukis don haɓaka 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 amfanin sinadarai na bakin karfe don tsawaita rayuwar foda a masana'anta.
Bincike: Ƙaddamar Rayuwar Foda a Ƙarfafa Ƙarfafawa: Ƙirar Ƙarfe na Bakin Karfe Spatter.Credit Image: MarinaGrigorivna/Shutterstock.com
Ƙarfe Laser Powder Bed Fusion (LPBF) Faɗaɗɗen barbashi ana samar da su ta hanyar narkakkar digo da aka kora daga narkakkar tafki ko foda mai zafi zuwa kusa ko sama da wurin narkewa yayin da suke wucewa ta katakon Laser.
Duk da yin amfani da wani inert yanayi, da karfe ta high reactivity kusa da narkewa zafin jiki na inganta hadawan abu da iskar shaka.Ko da yake spatter barbashi ejected a lokacin LBPF narke a kalla a taƙaice a surface, yaduwa na maras tabbas abubuwa zuwa ga surface iya faruwa, da kuma wadannan abubuwa da high alaka ga oxygen samar lokacin farin ciki yadudduka oxide.
Tunda matsa lamba na oxygen a cikin LPBF yawanci ya fi girma fiye da na gas atomization, yiwuwar haɗuwa da oxygen yana ƙaruwa.
Bakin karfe da nickel-based alloy spatters an san su da sauri oxidize, samar da tsibiran har zuwa mita da yawa a cikin kauri. Bugu da ƙari, bakin karfe da nickel-tushen gami, kamar waɗanda ke samar da nau'in oxide spatters na tsibiri, su ne mafi yawan inji a cikin LPBF, da kuma yin amfani da wannan hanya zuwa mafi yawan al'ada LPBF karfe spatters ne mai mahimmanci don nuna sabon sinadarai na LPBF.
(a) Hoton SEM na bakin karfe spatter barbashi, (b) Hanyar gwaji na thermal sinadaran etching, (c) LBPF lura da deoxidized spatter barbashi.Image credit: Murray, J.W, et al, Additive Manufacturing Haruffa
A cikin wannan binciken, mawallafa sun yi amfani da sabon fasaha na etching sinadarai don cire oxides daga saman oxidized bakin karfe fantsama foda.Metal rushewa a kusa da kuma a kasa oxide tsibiran a kan foda da ake amfani da na farko inji domin oxide kau, wanda damar don ƙarin m oxide cire.The fantsama, etch da budurwa powders aka sieved zuwa wannan foda size kewayon.
Tawagar ta nuna yadda za a cire oxides daga bakin karfe spatter barbashi, musamman ma wadanda aka ware ta hanyar amfani da sunadarai dabaru don samar da Si- da Mn-rich oxide tsibiran a kan foda surface.316L na spatter aka tattara daga foda gadon na LPBF kwafi da chemically etched ta immersion.Bayan screening duk barbashi zuwa daidai girman kewayon su zuwa cikin wani nau'i-nau'i na EFP.
Masu binciken sun duba zafin jiki da kuma wasu nau'ikan bakin karfe guda biyu daban-daban.Bayan tantancewa zuwa girman girman girman, LBPF waƙoƙi guda ɗaya an ƙirƙira su ta hanyar amfani da foda na budurwowi iri ɗaya, foda foda, da ingantaccen foda.
Hanyoyin LPBF guda ɗaya waɗanda aka samo daga spatter, etch spatter, da pristine foda. Hoton girman girman girman girman ya nuna cewa an kawar da Layer na oxide a kan waƙar da aka watsar a kan waƙar da aka zubar. Asalin foda ya nuna cewa wasu oxides sun kasance har yanzu. Hoton hoto: Murray, J. W, et al, Ƙarfafa Ƙwararrun Ƙwararrun Ƙwararru.
Oxide yankin ɗaukar hoto a kan 316L bakin karfe fantsama foda ya rage ta hanyar 10, daga 7% zuwa 0.7% bayan Ralph's reagent ya mai tsanani zuwa 65 ° C a cikin wanka na ruwa don 1 hour. Taswirar babban yanki, bayanan EDX ya nuna raguwa a matakan oxygen daga 13.5% zuwa 4.5%.
Etched spatter yana da ƙananan suturar oxide slag akan hanya idan aka kwatanta da spatter.Bugu da ƙari, ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar cuta yana da damar inganta haɓakawa da haɓakawa na spatter ko taro-amfani da foda da aka yi daga yadu da aka yi amfani da su da kuma lalata-resistant bakin karfe foda.
A ko'ina cikin dukan 45-63 µm sieve girman kewayon, sauran agglomerated barbashi a cikin etched da kuma unetched spatter powders bayyana dalilin da ya sa da alama kundin na etched da spattered powders suna kama, yayin da kundin na asali powders ne kamar 50% girma. Agglomerated ko tauraron dan adam-forming powders aka lura da tasiri girma.
Etched spatter yana da ƙananan suturar oxide slag a kan waƙa idan aka kwatanta da spatter.Lokacin da aka cire oxides ta hanyar sinadarai, ƙananan da aka ɗaure da ƙananan foda suna nuna shaidar mafi kyawun ɗaurin oxides da aka rage, wanda aka danganta da mafi kyawun wettability.
Schematic yana nuna fa'idodin LPBF lokacin da ake cire oxides daga fesa foda a cikin tsarin bakin karfe.Madalla da wettability ana samun su ta hanyar kawar da oxides.Image credit: Murray, J.W, et al, Additive Manufacturing Haruffa
A taƙaice, wannan binciken ya yi amfani da hanyar da aka yi amfani da sinadarai don haɓaka ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar ƙwayar cuta ta hanyar nutsewa a cikin Ralph's reagent, wani bayani na ferric chloride da cupric chloride a cikin hydrochloric acid.An lura cewa nutsewa a cikin zafi mai zafi Ralph da sauran bayani na 1 hour ya haifar da raguwa na 10e-fold a cikin 10e-fold ɗaukar hoto.
Marubutan sun yi imanin cewa etching sinadarai yana da yuwuwar haɓakawa da amfani da shi akan sikeli mai fa'ida don sabunta ɓangarori masu yawa da aka sake amfani da su ko foda na LBPF, don haka ƙara ƙimar kayan tushen foda masu tsada.
Murray, JW, Speidel, A., Spierings, A. et al. Extending foda rayuwa a ƙari masana'antu: sinadaran etching na bakin karfe spatter.Additive Manufacturing Haruffa 100057 (2022).
Disclaimer: Ra'ayoyin da aka bayyana a nan na marubucin ne a matsayinsu na sirri kuma ba lallai ba ne su wakilci ra'ayoyin AZoM.com Limited T/A AZoNetwork, mai kuma ma'aikacin wannan gidan yanar gizon. Wannan ƙin yarda ya ƙunshi wani ɓangare na sharuɗɗan amfani da wannan gidan yanar gizon.
Surbhi Jain wani marubucin fasaha ne mai zaman kansa wanda ke zaune a Delhi, India.Ta na da Ph.D.An sami PhD a Physics daga Jami'ar Delhi kuma ta shiga cikin ayyukan kimiyya da al'adu da wasanni.Ta ilimin kimiyyar ilimin kimiyyar ilimin kimiyyar kayan aikin bincike, ƙwarewa a cikin ci gaban na'urorin gani da na'urori masu auna firikwensin.She yana da kwarewa sosai a cikin rubuce-rubucen abun ciki, gyare-gyare, gyare-gyaren takarda, da bincike na bincike da bincike na aikin jarida 2 na aikin bincike da bincike na Scoop7. haƙƙin mallaka bisa aikinta na bincike.Mai sha'awar karatu, rubutu, bincike da fasaha, tana jin daɗin dafa abinci, wasan kwaikwayo, aikin lambu da wasanni.
Jainism, Subi.(24 May 2022).Sabuwar hanyar etching sinadarai tana cire oxides daga oxidised bakin karfe fantsama foda.AZOM.An dawo da Yuli 21, 2022 daga https://www.azom.com/news.aspx?newsID=59143.
Jainism, Subi." Sabuwar hanyar etching sinadarai don cire oxides daga oxidized bakin karfe spatter foda."AZOM.July 21, 2022.
Jainism, Subi."Sabuwar hanyar etching sinadarai don cire oxides daga oxidized bakin karfe spatter foda".AZOM.https://www.azom.com/news.aspx?newsID=59143.(An samu 21 ga Yuli 2022).
Jainism, Subi.2022.Sabuwar hanyar etching sinadaran don cire oxides daga oxidized bakin karfe fantsama foda.AZoM, isa ga Yuli 21, 2022, https://www.azom.com/news.aspx?newsID=59143.
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