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Muchinyorwa chazvino chakaburitswa mujenari Additive Manufacturing Letters, vaongorori vanokurukura nezve mashandisiro emakemikari akaiswa simbi isina tsvina spatter yekuwedzera hupenyu hwehupfu mukuwedzera kugadzira.
Tsvagiridzo: Kuwedzera Upenyu Hwehupfu muKuwedzera Kugadzira: Kemikari Etching yeStainless Steel Spatter.Image Credit: MarinaGrigorivna/Shutterstock.com
Metal Laser Powder Bed Fusion (LPBF) Splash particles inogadzirwa nemadonhwe akanyunguduka anoburitswa kubva mudziva rakanyungudutswa kana zvidimbu zvehupfu zvinopisa kusvika padhuze kana pamusoro penzvimbo inonyungudika sezvavanopfuura nepadanda relaser.
Pasinei nekushandiswa kwenzvimbo inert, simbi yakakwirira reactivity pedyo nekunyunguduka kwayo inokurudzira oxidation.Kunyange zvazvo spatter particles yakabudiswa panguva yeLPBF inonyunguduka zvishoma pamusoro pepamusoro, kupararira kwezvinhu zvinoputika kusvika pamusoro zvingangoitika, uye zvinhu izvi zvine hukama hwepamusoro hweokisijeni hunobudisa zvikamu zvakakora zve oxide.
Sezvo kumanikidzwa kwechikamu cheokisijeni muLPBF kazhinji kwakakwira kupfuura iyo mugasi atomization, mukana wekusunga neokisijeni unowedzera.
Stainless simbi uye nickel-based alloy spatters vanozivikanwa kuti oxidize nokukurumidza, kuumba zvitsuwa anosvika akati wandei metres muukobvu.Kuwedzera, Stainless simbi uye nickel-based alloys, akadai avo anogadzira island-mhando oxide spatters, vari anowanzoitwa machined zvinhu muLPBF, uye kushandisa nzira iyi kuti mamwe chaiwo LPBF kuti LPBF anonyanya kuratidza kuti kemikari kuPoswal simbi simbi.
(a) SEM mufananidzo westainless simbi spatter particles, (b) yekuedza nzira ye thermal chemical etching, (c) LPBF kurapwa kwe deoxidized spatter particles.Image credit: Murray, J. W, et al, Additive Manufacturing Letters
Muchidzidzo ichi, vanyori vakashandisa nzira itsva yemakemikari etching kuti vabvise okisidhi kubva pamusoro pesimbi isina tsvina yakasvibiswa inoputika powders. Metal dissolution kumativi uye pasi pezvitsuwa zveoxide paupfu inoshandiswa seyo nzira yekutanga yekubvisa oxide, iyo inobvumira kuwedzera kwehasha kubvisa okisidhi.
Chikwata chakaratidza maitiro ekubvisa mhou kubva pangozi simbi spatter, kunyanya izvo zvaive zvoga zvevakaunganidzwa. simbi isina tsvina.
Vatsvakurudzi vakatarisa tembiricha pamwe chete nemhando mbiri dzakasiyana dzesimbi isina tsvina.Mushure mekuongorora kusvika kuhukuru hwakafanana, LPBF single tracks yakagadzirwa nekushandisa virgin powders, splash powders, uye etched splash powders zvakanaka.
Individual LPBF traces yakagadzirwa kubva kune spatter, etch spatter, uye pristine powder.Mufananidzo wepamusoro wekusimudzira unoratidza kuti oxide layer inopararira pane yakasvibiswa track inobviswa pa etched sputtered track.Ipoda yepakutanga yakaratidza kuti mamwe oxides akanga achiripo.Image credit: Murray, J. W, et al, Additive Letters
Oxide nzvimbo yekuvhara pa 316L simbi isina tsvina yakasvibiswa yakaderera nechikamu che10, kubva ku7% kusvika ku0.7% mushure mokunge reagent yaRalph ichipisa kusvika ku65 ° C mumvura yekugeza kweawa 1. Kugadzira nzvimbo huru, data yeEDX yakaratidza kuderedzwa kwemazinga eokisijeni kubva ku13.5% kusvika ku4.5%.
Etched spatter ine yakaderera oxide slag coating pamusoro penzira inofananidzwa ne spatter.Kuwedzera, kemikari etching yehupfu inowedzera kufananidzwa kwehupfu panjanji.Chemical etching ine mukana wekuvandudza reusability uye kusimba kwespatter kana misa-kushandisa poda yakagadzirwa kubva kune yakashandiswa zvakanyanya uye inodzivirira corrosion simbi isina tsvina poda.
Pakati pese 45-63 µm sieve size range, asara agglomerated particles mu etched and unetched spatter powders anotsanangura kuti sei trace volumes ye etched and spatters powders yakafanana, ukuwo mavhoriyamu ehupfu hwepakutanga angangoita 50% hombe.
Etched spatter ine yakaderera oxide slag coating pamusoro penzira inofananidzwa ne spatter.Apo okisidhi yacho inobviswa nemakemikari, iyo semi-yakasungwa uye yakashama poda inoratidza humbowo hwekusunga zviri nani kweiyo yakaderedzwa oxides, iyo inonzi inokonzerwa nekunyorova kuri nani.
Schematic inoratidza zvakanakira kurapwa kweLPBF kana makemikari achibvisa okisidhi kubva kusplash poda muhurongwa hwesimbi isina tsvina.Kunyorova kwakanakisa kunowanikwa nekubvisa maokisi.Mufananidzo wechikwereti: Murray, J. W, et al, Additive Manufacturing Letters
Muchidimbu, chidzidzo ichi chakashandisa chemikemikari etching maitiro kuti kemikemike igadzirise zvakanyanya oxidized Stainless steel spatter powders nekunyudzwa muRalph's reagent, mhinduro yeferric chloride uye cupric chloride muhydrochloric acid.Yakaonekwa kuti kunyura mumoto unopisa Ralph etchant solution kweawa 1-splaage yakakonzera kuvharwa kwepoda 10 paawa 10.
Vanyori vanotenda kuti kemikari etching ine mukana wekuvandudzwa uye kushandiswa pamwero wakafara kuvandudza akawanda akashandiswazve spatter particles kana LPBF hupfu, nokudaro zvichiwedzera kukosha kwezvinodhura-based poda.
Murray, JW, Speidel, A., Spierings, A. et al.Kuwedzera hupenyu hwehupfu mukuwedzera kwekugadzira: kemikari etching yesimbi isina tsvina spatter.Additive Manufacturing Letters 100057 (2022) https://www.sciencedirect.com/science/article/pii/S200057
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Surbhi Jain munyori wehunyanzvi akazvimirira anogara kuDelhi, India.Ane Ph.D.Akagamuchira PhD yeFizikisi kubva kuYunivhesiti yeDelhi uye akatora chikamu muzviitiko zvakati wandei zvesainzi, tsika nemitambo.Mamiriro ake ezvidzidzo ari mutsvakurudzo yezvesainzi, inyanzvi mukugadzirwa kwemichina yemaziso uye sensors.Ane ruzivo rwakakura mukunyora zvinyorwa, kupepeta uye kuburitsa data reongororo yeprojekti uye rondedzero yeproject. Mapatent emuIndia anoenderana nebasa rake rekutsvagisa.Anofarira kuverenga, kunyora, kutsvagisa uye tekinoroji, anofarira kubika, kutamba, kurima gadheni nemitambo.
Jainism, Subi.(24 May 2022).Nzira itsva yemakemikari etching inobvisa maokisidhi kubva kune oxidised Stainless steel splash powder.AZOM.Retrieved July 21, 2022 kubva https://www.azom.com/news.aspx?newsID=59143.
Jainism, Subi.”Nyowani kemikari etching nzira yekubvisa maokisidhi kubva muoxidized Stainless Stainless Spatter powder”.AZOM.Chikunguru 21, 2022..
Jainism, Subi."Nyowani kemikari etching nzira yekubvisa okisidhi kubva kune oxidized Stainless steel spatter powder" .AZOM.https://www.azom.com/news.aspx?newsID=59143.
ChiJainism, Subi.2022.Nyowani kemikari etching nzira yekubvisa maokisi kubva kune oxidized Stainless simbi splash poda.AZoM, yakasvika Chikunguru 21, 2022, https://www.azom.com/news.aspx?newsID=59143.
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