Peb siv cov ncuav qab zib los txhim kho koj qhov kev paub. Los ntawm kev txuas ntxiv mus saib lub xaib no koj pom zoo rau peb siv cov ncuav qab zib. Xav paub ntxiv.
Hauv tsab xov xwm tsis ntev los no uas tau luam tawm hauv phau ntawv xov xwm Additive Manufacturing Letters, cov kws tshawb fawb tau tham txog qhov siv tau ntawm cov hlau stainless hlau uas tau muab tshuaj lom neeg los ua kom cov hmoov siv tau ntev dua hauv kev tsim khoom ntxiv.
Kev Tshawb Fawb: Txuas Ntxiv Lub Neej Hmoov Hauv Kev Tsim Khoom Ntxiv: Kev Siv Tshuaj Etching ntawm Stainless Steel Spatter. Duab Los Ntawm: MarinaGrigorivna/Shutterstock.com
Kev Sib Xyaws Hmoov Hlau Laser Powder Bed Fusion (LPBF) Cov hmoov me me uas sib xyaw ua ke yog tsim los ntawm cov tee dej uas yaj tawm ntawm lub pas dej yaj lossis cov hmoov me me uas raug cua sov kom ze lossis siab dua qhov chaw yaj thaum lawv hla dhau lub teeb laser.
Txawm hais tias siv ib puag ncig inert, cov hlau qhov kev ua haujlwm siab nyob ze nws qhov kub yaj txhawb nqa oxidation. Txawm hais tias cov khoom tawg uas raug tso tawm thaum lub sijhawm LPBF yaj tsawg kawg ib ntus ntawm qhov chaw, kev sib kis ntawm cov khoom volatile mus rau qhov chaw yuav tshwm sim, thiab cov ntsiab lus no uas muaj kev sib raug zoo rau oxygen tsim cov txheej oxide tuab.
Vim tias qhov siab ib nrab ntawm cov pa oxygen hauv LPBF feem ntau siab dua li qhov hauv cov pa roj atomization, qhov ua tau ntawm kev khi nrog cov pa oxygen yog nce ntxiv.
Cov hlau tsis xeb thiab cov hlau nickel-based alloy spatters paub tias yuav oxidize sai sai, tsim cov kob txog li ob peb meters hauv tuab. Tsis tas li ntawd, cov hlau tsis xeb thiab cov hlau nickel-based, xws li cov uas tsim cov kob oxide spatters, feem ntau yog cov khoom siv machined hauv LPBF, thiab siv txoj kev no rau cov hlau LPBF spatters ib txwm muaj los qhia tias kev tsim tshuaj lom neeg yog qhov tseem ceeb rau Hmoov hauv txoj kev ib txwm.
(a) Duab SEM ntawm cov khoom me me ntawm cov hlau tsis xeb, (b) txoj kev sim ntawm kev siv tshuaj thermal etching, (c) Kev kho LPBF ntawm cov khoom me me uas tsis muaj zog. Duab credit: Murray, J. W, et al, Additive Manufacturing Letters
Hauv kev tshawb fawb no, cov kws sau ntawv tau siv cov txheej txheem tshuaj lom neeg tshiab los tshem tawm cov oxides ntawm qhov chaw ntawm cov hmoov hlau stainless hlau uas tau oxidized. Kev yaj hlau nyob ib puag ncig thiab hauv qab cov kob oxide ntawm cov hmoov yog siv ua lub hauv paus tseem ceeb rau kev tshem tawm oxide, uas tso cai rau kev tshem tawm oxide ntau dua. Cov hmoov splash, etch thiab virgin tau raug sieve mus rau tib qhov loj me hmoov rau kev ua LPBF.
Cov pab pawg tau qhia txog yuav ua li cas tshem tawm cov oxides ntawm cov khoom me me ntawm cov hlau tsis xeb, tshwj xeeb tshaj yog cov uas tau cais tawm siv cov txheej txheem tshuaj lom neeg los tsim cov kob oxide nplua nuj Si- thiab Mn ntawm qhov chaw ntawm cov hmoov. 316L ntawm cov spatter tau sau los ntawm lub txaj hmoov ntawm LPBF cov ntawv luam tawm thiab etched los ntawm kev siv tshuaj lom neeg los ntawm kev immersion. Tom qab tshuaj xyuas tag nrho cov khoom me me mus rau tib qhov loj me, LPBF ua tiav lawv mus rau hauv ib qho dhau nrog cov spatter etched zoo tshaj plaws thiab cov hlau tsis xeb tshiab.
Cov kws tshawb fawb tau saib qhov kub thiab txias nrog rau ob lub stainless hlau sib txawv etchants. Tom qab tshuaj ntsuam mus rau tib qhov loj me, LPBF ib txoj kab tau tsim los ntawm kev siv cov hmoov zoo sib xws, cov hmoov txau, thiab cov hmoov txau zoo sib xws.
Cov cim qhia txog LPBF uas tsim los ntawm cov spatter, etch spatter, thiab cov hmoov tsis muaj xim. Daim duab loj dua qhia tau hais tias cov txheej oxide uas nyob rau ntawm txoj kab sputtered raug tshem tawm ntawm txoj kab etched sputtered. Cov hmoov qub qhia tau hais tias qee cov oxides tseem muaj. Duab los ntawm: Murray, J. W, et al, Additive Manufacturing Letters
Thaj chaw oxide npog ntawm 316L stainless hlau splash hmoov txo qis los ntawm ib qho ntawm 10, los ntawm 7% mus rau 0.7% tom qab Ralph's reagent raug cua sov rau 65 ° C hauv lub dab dej rau 1 teev. Daim ntawv qhia thaj chaw loj, EDX cov ntaub ntawv qhia tau tias muaj kev txo qis ntawm cov pa oxygen los ntawm 13.5% mus rau 4.5%.
Cov tshuaj etched spatter muaj cov txheej oxide slag qis dua ntawm qhov chaw ntawm txoj kev piv rau cov tshuaj spatter. Tsis tas li ntawd, kev siv tshuaj etching ntawm cov hmoov ua rau cov hmoov sib xyaw ua ke ntawm txoj kev. Kev siv tshuaj etching muaj peev xwm txhim kho kev siv dua thiab kev ruaj khov ntawm cov tshuaj spatter lossis cov hmoov siv ntau uas ua los ntawm cov hmoov hlau stainless uas siv dav thiab tiv taus corrosion.
Thoob plaws tag nrho 45-63 µm sieve loj ntau yam, cov khoom seem agglomerated hauv cov hmoov spatter etched thiab unetched piav qhia vim li cas cov ntim me me ntawm cov hmoov etched thiab spattered zoo sib xws, thaum cov ntim ntawm cov hmoov thawj yog kwv yees li 50% loj dua. Cov hmoov agglomerated lossis satellite-forming tau pom tias cuam tshuam rau qhov ceev ntawm cov khoom loj thiab yog li ntawd ntim.
Cov spatter etched muaj cov txheej oxide slag qis dua ntawm qhov chaw khiav piv rau cov spatter. Thaum cov oxides raug tshem tawm los ntawm tshuaj lom neeg, cov hmoov semi-bound thiab cov hmoov liab qab qhia tau tias muaj kev sib txuas zoo dua ntawm cov oxides txo qis, uas yog vim muaj kev ntub dej zoo dua.
Daim duab qhia txog cov txiaj ntsig ntawm kev kho LPBF thaum tshem tawm cov oxides ntawm cov hmoov txau hauv cov tshuab stainless hlau. Kev ua kom ntub dej zoo heev yog ua tiav los ntawm kev tshem tawm cov oxides. Duab los ntawm: Murray, J. W, et al, Additive Manufacturing Letters
Hauv kev xaus lus, txoj kev tshawb fawb no siv cov txheej txheem etching tshuaj los tsim cov hmoov hlau stainless hlau uas tau oxidized heev los ntawm kev muab tso rau hauv Ralph's reagent, cov tshuaj ntawm ferric chloride thiab cupric chloride hauv hydrochloric acid. Nws tau pom tias kev muab tso rau hauv cov tshuaj Ralph etchant uas tau rhaub rau 1 teev ua rau thaj chaw oxide txo qis 10 npaug ntawm cov hmoov uas tau txau.
Cov kws sau ntawv ntseeg tias kev siv tshuaj etching muaj peev xwm txhim kho thiab siv rau ntau qhov dav dua los rov ua dua ntau cov khoom tawg rov qab siv dua lossis cov hmoov LPBF, yog li ua rau cov khoom siv hmoov kim kim kim dua.
Murray, JW, Speidel, A., Spierings, A. et al. Kev txuas ntxiv lub neej ntawm cov hmoov hauv kev tsim khoom ntxiv: kev siv tshuaj lom neeg ntawm cov hlau tsis xeb. Cov Ntawv Tsim Khoom Ntxiv 100057 (2022). https://www.sciencedirect.com/science/article/pii/S2772369022000317
Lus Ceeb Toom: Cov kev xav uas tau hais tawm ntawm no yog cov ntawm tus sau ntawv hauv lawv tus kheej lub peev xwm thiab tsis tas yuav sawv cev rau cov kev xav ntawm AZoM.com Limited T/A AZoNetwork, tus tswv thiab tus neeg ua haujlwm ntawm lub vev xaib no. Cov lus ceeb toom no yog ib feem ntawm cov nqe lus thiab tej yam kev mob ntawm kev siv lub vev xaib no.
Surbhi Jain yog ib tug kws sau ntawv ywj pheej nyob hauv Delhi, Is Nrias teb. Nws muaj daim Ph.D. Tau txais daim PhD hauv Physics los ntawm University of Delhi thiab tau koom nrog ntau yam kev tshawb fawb, kab lis kev cai thiab kev ua si. Nws keeb kwm kev kawm yog kev tshawb fawb txog cov ntaub ntawv, tshwj xeeb hauv kev tsim cov khoom siv kho qhov muag thiab cov sensors. Nws muaj kev paub dhau los hauv kev sau cov ntsiab lus, kev kho, kev tshuaj xyuas cov ntaub ntawv sim thiab kev tswj hwm qhov project, thiab tau luam tawm 7 daim ntawv tshawb fawb hauv Scopus indexed journals thiab tau xa 2 daim ntawv pov thawj Is Nrias teb raws li nws txoj haujlwm tshawb fawb. Nws mob siab rau kev nyeem ntawv, sau ntawv, tshawb fawb thiab thev naus laus zis, nws nyiam ua noj ua haus, ua yeeb yam, ua teb thiab ua si.
Jainism, Subi. (24 Tsib Hlis 2022). Txoj kev siv tshuaj etching tshiab tshem tawm cov oxides ntawm cov hmoov hlau stainless uas raug oxidized.AZOM. Tau txais thaum Lub Xya Hli 21, 2022 los ntawm https://www.azom.com/news.aspx?newsID=59143.
Jainism, Subi. ”Txoj kev siv tshuaj lom neeg tshiab los tshem tawm cov oxides ntawm cov hmoov hlau stainless hlau oxidized”. AZOM. Lub Xya Hli 21, 2022..
Jainism, Subi. ”Txoj kev siv tshuaj lom neeg tshiab los tshem tawm cov oxides ntawm cov hmoov hlau stainless hlau oxidized”. AZOM. https://www.azom.com/news.aspx?newsID=59143. (Nkag mus rau 21 Lub Xya Hli 2022).
Jainism, Subi.2022. Txoj kev siv tshuaj etching tshiab los tshem tawm cov oxides ntawm cov hmoov hlau stainless uas tau oxidized.AZoM, nkag mus rau Lub Xya Hli 21, 2022, https://www.azom.com/news.aspx?newsID=59143.
Ntawm Advanced Materials thaum Lub Rau Hli 2022, AZoM tau tham nrog Ben Melrose ntawm International Syalons txog kev ua lag luam khoom siv siab heev, Kev Lag Luam 4.0, thiab kev thawb mus rau xoom net.
Ntawm Advanced Materials, AZoM tau tham nrog General Graphene's Vig Sherrill txog yav tom ntej ntawm graphene thiab lawv cov thev naus laus zis tshiab yuav txo cov nqi li cas los qhib lub ntiaj teb tshiab ntawm kev siv yav tom ntej.
Hauv kev xam phaj no, AZoM tham nrog Levicron Thawj Tswj Hwm Dr. Ralf Dupont txog lub peev xwm ntawm lub tshuab hluav taws xob tshiab (U)ASD-H25 rau kev lag luam semiconductor.
Tshawb nrhiav OTT Parsivel², lub tshuab ntsuas laser displacement meter uas siv tau los ntsuas txhua hom nag los. Nws tso cai rau cov neeg siv sau cov ntaub ntawv ntawm qhov loj me thiab qhov ceev ntawm cov khoom me me uas poob.
Environics muaj cov txheej txheem permeation rau ib lossis ntau lub raj permeation siv ib zaug xwb.
Lub MiniFlash FPA Vision Autosampler los ntawm Grabner Instruments yog lub tshuab kuaj 12-txoj haujlwm. Nws yog ib qho khoom siv automation tsim los siv nrog MINIFLASH FP Vision Analyzer.
Tsab xov xwm no muab kev ntsuam xyuas thaum kawg ntawm lub neej ntawm cov roj teeb lithium-ion, nrog rau kev tsom mus rau kev rov ua dua cov roj teeb lithium-ion siv uas nce ntxiv kom ua rau muaj kev siv roj teeb thiab rov siv dua.
Kev xeb yog qhov kev puas tsuaj ntawm cov hlau sib xyaw vim yog kev raug rau ib puag ncig. Ntau txoj kev siv los tiv thaiv kev puas tsuaj ntawm cov hlau sib xyaw uas raug rau huab cua lossis lwm yam xwm txheej tsis zoo.
Vim muaj kev thov zog ntau ntxiv, qhov kev thov roj nuclear kuj nce ntxiv, uas ua rau muaj kev thov thev naus laus zis tom qab kev tshuaj xyuas hluav taws xob (PIE) ntau ntxiv.