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N'ime akụkọ na-adịbeghị anya nke e bipụtara na akwụkwọ akụkọ Additive Manufacturing Letters, ndị nchọpụta na-atụle usoro ịgbaze laser maka ngwakọta ọla kọpa dabere na 316L igwe anaghị agba nchara.
Nnyocha: Nkwekọrịta nke 316L igwe anaghị agba nchara-ọla kọpa site na agbaze laser.Ebe E Si Nweta Foto: Pedal in stock / Shutterstock.com
Ọ bụ ezie na nnyefe okpomọkụ n'ime ihe siri ike na-emekọ ihe na-agbasa, okpomọkụ nwere ike ịgafe n'ọtụtụ siri ike n'okporo ụzọ nke obere nguzogide.Na radiators nke ụfụfụ ígwè, a na-atụ aro ka iji anisotropy nke thermal conductivity na permeability na-eme ka ọ dịkwuo ọkụ ọkụ.
Tụkwasị na nke ahụ, a na-atụ anya na anisotropic thermal conduction ga-enyere aka belata mfu parasitic nke na-akpata axial conduction na kọmpat okpomọkụ mgbanwe.A na-eji ụzọ dị iche iche eme ihe iji gbanwee okpomọkụ nke alloys na metals.Ọnweghị ụzọ ndị a dabara adaba maka ịkwalite atụmatụ njikwa ntụzịaka maka ịgbasa ọkụ na akụrụngwa igwe.
A na-emepụta Metal Matrix Composites (MMC) site na bọọlụ milled powders na-eji laser agbaze na uzuzu bed (LPBF) technology.Ụzọ ọhụrụ LPBF ngwakọ ka akwadoro n'oge na-adịbeghị anya iji mepụta ODS 304 SS alloys site na doping yttrium oxide precursors n'ime oyi akwa nke 304 SS ntụ ntụ tupu densification laser site na iji teknụzụ inkjet piezoelectric.Uru nke usoro a bụ ikike ịhọrọ nhazi ihe onwunwe na mpaghara dị iche iche nke oyi akwa ntụ ntụ, nke na-enye gị ohere ijikwa ihe onwunwe n'ime olu ọrụ nke ngwá ọrụ ahụ.
Ngosipụta atụmatụ nke usoro ihe ndina ekpo ọkụ maka (a) ikpo ọkụ na (b) ntụgharị ink.Ebe e si nweta foto: Murray, JW et al.Akwụkwọ ozi na mmepụta ihe mgbakwunye.
N'ime ọmụmụ ihe a, ndị odee jiri Cu inkjet ink gosipụta usoro mgbaze laser maka imepụta ihe mejupụtara matriks metal nwere ezigbo ọkụ ọkụ karịa 316L igwe anaghị agba nchara.Iji mee ka usoro ngwakọta akwa inkjet ntụ ntụ nwere ngwakọ, ejiri inks ọla kọpa precursor dochie oyi akwa igwe anaghị agba nchara yana ebe nchekwa ọhụrụ ejiri chịkwaa ọkwa oxygen n'oge nhazi laser.
Ndị otu ahụ mepụtara ngwakọta nke igwe anaghị agba nchara 316L nwere ọla kọpa na-eji ink ọla kọpa inkjet na gburugburu na-eme ka alloy laser na akwa ntụ ntụ.Nkwadebe nke reactors kemịkalụ site na iji inkjet ngwakọ ọhụrụ na usoro LPBF na-erite uru nke ntụzịaka thermal conduction iji belata nha na ịdị arọ nke reactor.A na-egosipụta ike ịmepụta ihe ndị mejupụtara site na iji inkjet ink.
Ndị nyocha ahụ lekwasịrị anya na nhọrọ nke ink precursors Cu na usoro nrụpụta maka ngwaahịa nnwale mejupụtara iji chọpụta njupụta ihe, microhardness, mejupụtara, na mgbasa ọkụ.Ahọpụtara ink abụọ ndoro-ndoro dabere na nkwụsi ike oxidation, ihe mgbakwunye dị ala ma ọ bụ enweghị, ndakọrịta na isi mbipụta inkjet, yana obere ihe fọdụrụ mgbe ntụgharị.
Ink CufAMP mbụ na-eji ọla kọpa formate (Cuf) dị ka nnu ọla kọpa.Vinyltrimethylcopper (II) hexafluoroacetylacetonate (Cu (hfac) VTMS) bụ ihe mbido ink ọzọ.Emere nnwale nke onye na-anya ụgbọ elu iji hụ ma ihicha na mwepu ọkụ nke ink na-ebute mmetọ ọla kọpa karịa n'ihi ibufe ngwaahịa kemịkalụ ma e jiri ya tụnyere ihicha a na-emekarị na ire ọkụ.
N'iji ụzọ abụọ ahụ, a na-eme microcoupons abụọ na microstructure ha tụnyere iji chọpụta mmetụta nke usoro ntụgharị.Na ibu nke 500 gf na oge njide nke 15 s, a tụrụ Vickers microhardness (HV) na mpaghara obe nke mpaghara ngwakọta nke ihe nlele abụọ.
Nhazi nke nhazi nnwale na usoro usoro ugboro ugboro maka imepụta 316L SS-Cu ihe mejupụtara ihe atụ nke ejiri usoro akwa akwa dị ọkụ.Ebe e si nweta foto: Murray, JW et al.Akwụkwọ ozi na mmepụta ihe mgbakwunye.
Achọpụtara ya na conductivity thermal conductivity nke ihe mejupụtara bụ 187% dị elu karịa nke igwe anaghị agba nchara 316L, na microhardness bụ 39% ala.Ọmụmụ ihe microstructural egosila na ibelata mgbawa interfacial nwere ike imeziwanye conductivity thermal na akụrụngwa nke ihe mejupụtara.Maka ntụgharị ọkụ na-aga n'ihu n'ime onye na-ekpo ọkụ ọkụ, ọ dị mkpa ka ị na-ahọrọ ihe na-eme ka okpomọkụ nke 316L igwe anaghị agba nchara.Ngwakọta ahụ nwere conductivity thermal dị irè nke 41.0 W/mK, 2.9 ugboro nke 316L igwe anaghị agba nchara, yana mbelata 39% na ike.
N'iji ya tụnyere nke adịgboroja na anneal 316L igwe anaghị agba nchara, microhardness nke sample na ekpo ọkụ oyi akwa bụ 123 ± 59 HV, nke bụ 39% ala.Ogo nke ihe mejupụtara ikpeazụ bụ 12%, nke jikọtara ya na ọnụnọ nke oghere na mgbawa na interface n'etiti usoro SS na Cu.
N'ihi na samples mgbe kpo oku na kpo oku oyi akwa, na microhardness nke cross ngalaba nke fusion zone kpebisiri ike dị ka 110 ± 61 HV na 123 ± 59 HV, karị, nke bụ 45% na 39% ala karịa 200 HV maka esorowo-annealed. 316L igwe anaghị agba nchara.N'ihi nnukwu ọdịiche dị na okpomọkụ na-agbaze nke Cu na 316L igwe anaghị agba nchara, ihe dị ka 315 ° C, a na-emepụta ihe mgbagwoju anya n'ime ihe ndị a na-emepụta n'ime ihe ndị a na-emepụta n'ihi nkwụsị nke mmiri na-eme ka mmiri na-ekpo ọkụ nke Cu.
Onyonyo BSE (n'elu aka ekpe) na maapụ nke ihe (Fe, Cu, O) ka emechara kpo oku nlele, nwetara site na nyocha WDS.Ebe e si nweta foto: Murray, JW et al.Akwụkwọ ozi na mmepụta ihe mgbakwunye.
N'ikpeazụ, ọmụmụ ihe a na-egosi ụzọ ọhụrụ iji mepụta 316L SS-Cu composites na mma thermal conductivity karịa 316L SS site na iji ink ọla kọpa fesa.A na-eme ngwakọta ahụ site n'itinye ink n'ime igbe aka ma gbanwee ya ka ọ bụrụ ọla kọpa, wee tinye ntụ ntụ nchara nchara n'elu ya, wee gwakọta ma gwọọ ya na welder laser.
Nsonaazụ izizi na-egosi na ink Cuf-AMP nke methanol nwere ike wedata ka ọ bụrụ ọla kọpa dị ọcha na-emepụtaghị ọla kọpa oxide na gburugburu dịka usoro LPBF.Ụzọ akwa akwa maka itinye na ịtụgharị ink na-emepụta microstructures na obere oghere na adịghị ọcha karịa usoro ikpo ọkụ mgbe ochie.
Ndị na-ede akwụkwọ na-ekwu na ọmụmụ ihe n'ọdịnihu ga-enyocha ụzọ isi belata nha ọka ma melite agbaze na ngwakọta nke usoro SS na Cu, yana ihe ndị na-arụ ọrụ nke ihe ndị mejupụtara.
Murray JW, Speidel A., Spierings A. et al.Synthesis nke 316L igwe anaghị agba nchara-ọla kọpa site na agbaze laser.Mpempe akwụkwọ eziokwu nrụpụta mgbakwunye mgbakwunye 100058 (2022).https://www.sciencedirect.com/science/article/pii/S2772369022000329
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Surbhi Jain bụ onye ode akwụkwọ teknụzụ nweere onwe ya dabere na Delhi, India.O nwere Ph.D.O nwere PhD na Physics na Mahadum Delhi wee soro na ọtụtụ mmemme sayensị, omenala na egwuregwu.Nzụlite agụmakwụkwọ ya dị na nyocha sayensị akụrụngwa nwere ọpụrụiche na mmepe nke ngwa anya na ihe mmetụta.O nwere ahụmịhe dị ukwuu na ide ọdịnaya, ndezi, nyocha data nnwale na njikwa ọrụ, wee bipụta akụkọ nyocha 7 na akwụkwọ akụkọ Scopus indexed wee tinye akwụkwọ ikike 2 India dabere na ọrụ nyocha ya.Ọ na-enwe mmasị n'ịgụ akwụkwọ, ide ihe, nyocha na teknụzụ ma na-enwe mmasị isi nri, igwu egwu, ịkọ ubi na egwuregwu.
Jainism, Surbhi.(Mee 25, 2022).Ịgbaze laser na-enye ohere ịmepụta igwe anaghị agba nchara na ọla kọpa.AZEweghachitere Disemba 25, 2022 site na https://www.azom.com/news.aspx?newsID=59155.
Jainism, Surbhi."Mgbaze laser na-enyere aka imepụta igwe anaghị agba nchara na kọpa kọpa."AZDisemba 25, 2022.Disemba 25, 2022.
Jainism, Surbhi."Mgbaze laser na-enyere aka imepụta igwe anaghị agba nchara na kọpa kọpa."AZhttps://www.azom.com/news.aspx?newsID=59155.(Dịka nke Disemba 25, 2022).
Jainism, Surbhi.2022. Mmepụta nke igwe anaghị agba nchara / ọla kọpa agbakwunyere site na agbaze laser.AZoM, enwetara na 25 Disemba 2022, https://www.azom.com/news.aspx?newsID=59155.
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