Sisebenzisa iikuki ukuphucula amava akho.Ngokuqhubeka nokukhangela le ndawo, uyavumelana nokusebenzisa kwethu iikuki.Iinkcukacha ezongezelelweyo.
Kuphononongo oluboniswe kwangaphambili kwiJournal of Nuclear Materials, intsimbi esanda kwenziwa i-austenitic stainless ene-nanosized NbC precipitates (ARES-6) kunye ne-316 eqhelekileyo yentsimbi yavavanywa phantsi kwe-ion irradiation enzima.Ukuziphatha emva kokuvuvukala ukuthelekisa iinzuzo ze-ARES-6.
Uphononongo: Ukumelana nokudumba kwe-austenitic stainless steel kunye ne-nanoscale ye-NbC esasazwa ngokulinganayo i-precipitates phantsi kwe-ion irradiation enzima.Umfanekiso wekhredithi: Parilov/Shutterstock.com
I-Austenitic stainless steels (SS) iqhele ukusetyenziswa njengezixhobo zangaphakathi ezenziweyo kwiireactors zamanzi ezikhanyayo zale mihla apho zichanabeke kwimitha ephezulu yemitha.
Utshintsho kwi-morphology ye-austenitic stainless steels ekuthathweni kwe-neutron kuchaphazela kakubi iiparamitha ezibonakalayo njengokuqina kwemitha kunye nokubola kwe-thermal.Imijikelo ye-Deformation, i-porosity, kunye ne-excitation yimizekelo ye-radiation-induced microstructure evolution edla ngokufumaneka kwi-austenitic stainless steels.
Ukongeza, i-austenitic stainless steel iphantsi kokwandiswa kwe-vacuum ye-radiation, enokuthi ikhokelele ekutshatyalalisweni okunokubulala kwezinto eziphambili zereactor.Ke ngoko, iinguqulelo kwizixhobo zale mihla zenyukliya ezinobomi obude kunye nemveliso ephezulu zifuna ukusetyenziswa kweendibano ezintsonkothileyo ezinokumelana nemitha engaphezulu.
Ukususela ekuqaleni kweminyaka yoo-1970, kuye kwacetywa iindlela ezininzi zokwenziwa kwezixhobo ze-radioactive.Njengenxalenye yemizamo yokuphucula ukusebenza kakuhle kwemitha, indima yeyona miba iphambili yokwandiswa kwe-vacuum elasticity ifundwe.Kodwa nangona kunjalo, ngenxa yokuba i-nickel ephezulu ye-austenitic steels stainless ichaphazeleka kakhulu kwi-embrittlement ngenxa ye-helium droplet deformation, iintsimbi ezisezantsi ze-austenite azinakuqinisekisa ukukhuselwa komhlwa okwaneleyo phantsi kweemeko zomhlwa.Kukwakho nemida ethile yokuphucula ukusebenza kakuhle kwemitha ngokulungisa ubumbeko lwealloy.
Enye indlela kukubandakanya iimpawu ezahlukeneyo ze-microstructural ezinokusebenza njengeendawo zokuhambisa amanzi kwiintsilelo zamanqaku.I-Sink inokuba negalelo ekufunxeni iziphene zangaphakathi ezibangelwa kukusasazeka kwemitha, ukulibazisa ukwakheka kwemingxunya kunye nezangqa zokufuduswa ezidalwe kukudityaniswa kwezithuba kunye nezithuba.
Ukukhutshwa okuninzi, imvula encinci, kunye nezakhiwo zegranular ziye zacetywa njengezinto zokufunxa ezinokuphucula ukusebenza kakuhle kwemitha.Uyilo lwengqikelelo yesantya esiguqukayo kunye nophononongo oluninzi lophononongo luveze iingenelo zezi mpawu ze-microstructural ekucinezeleni ukwanda okungenanto kunye nokunciphisa ukwahlulwa kwecandelo okubangelwa yimitha.Nangona kunjalo, i-gap iphilisa ngokuthe ngcembe phantsi kweempembelelo zemitha kwaye ayiwenzi ngokupheleleyo umsebenzi wendawo yokukhupha amanzi.
Abaphandi basanda kuvelisa i-austenitic stainless steel kunye nomlinganiselo othelekisekayo we-nano-niobium carbide precipitates esasazwe ngokufanayo kwi-matrix usebenzisa inkqubo yokwenza intsimbi yoshishino eyathi kamva yabizwa ngokuba yi-ARES-6.
Uninzi lwemvula kulindeleke ukuba lubonelele ngeendawo zokutshona ezaneleyo kwiziphene ezingaphakathi kwimitha, ngaloo ndlela inyusa ukusebenza kakuhle kwemitha ye-ARES-6 alloys.Nangona kunjalo, ubukho be-microscopic precipitates ye-niobium carbide ayiboneleli ngeempawu ezilindelekileyo zokumelana nemitha ngokusekelwe kwisakhelo.
Ke ngoko, injongo yolu phononongo yayikukuvavanya isiphumo esihle se-niobium carbides encinci ekwandiseni ukumelana.Imiphumo yezinga le-dose ehambelana nexesha elide le-nanoscale pathogens ngexesha le-ion bombardment enzima nayo iphandiwe.
Ukuphanda ukwanda kwe-gap, i-alloy ye-ARES-6 esanda kuveliswa kunye ne-niobium nanocarbides ehlakazekileyo ngokulinganayo insimbi yezoshishino kunye nebhobho nge-5 MeV nickel ions.Ezi zigqibo zilandelayo zisekelwe kwimilinganiselo yokudumba, izifundo ze-nanometer electron microscopy microstructure, kunye nokubalwa kwamandla okulahla.
Phakathi kweempawu ze-microstructural ze-ARES-6P, i-concentration ephezulu ye-nanoniobium carbide precipitates yisona sizathu esibalulekileyo sokunyuka kwe-elasticity ngexesha lokuvuvukala, nangona i-concentration ephezulu ye-nickel nayo idlala indima.Ngenxa yobuninzi bezihlandlo zokufuduswa, i-ARES-6HR ibonise ukwanda okuthelekiswa ne-ARES-6SA, ebonisa ukuba, nangona ukonyuka kwamandla okwakhiwa kwetanki, ukufuduka kwi-ARES-6HR yodwa akukwazi ukubonelela ngesiza esisebenzayo sokukhupha amanzi.
Emva kokubhobhoza ngee-ion ezinzima, i-nanoscale quasi-crystalline nature ye-precipitates ye-niobium carbide iyatshatyalaliswa.Ngenxa yoko, xa usebenzisa indawo enzima ye-ion bombardment esetyenziswa kulo msebenzi, ininzi ye-pathogens esele ikhona kwiisampuli ezingenayo i-radiated ngokuthe ngcembe zachithwa kwi-matrix.
Nangona umthamo we-drainage we-ARES-6P kulindeleke ukuba ube ngamaxesha amathathu e-316 yentsimbi yensimbi engenasici, ukunyuka okulinganisiweyo ekwandiseni malunga namaxesha asixhenxe.
Ukuchithwa kwe-precipitates ye-niobium nanocarbide ekutyhilekeni ekukhanyeni kuchaza ukungafani okukhulu phakathi kokumelana okulindelekileyo kunye nokwenyani kokudumba kwe-ARES-6P.Nangona kunjalo, i-nanoniobium carbide crystallites ilindeleke ukuba yomelele ngakumbi kumazinga ethamo asezantsi, kunye nokwandiswa kwe-elasticity ye-ARES-6P kuya kuphuculwa kakhulu kwixesha elizayo phantsi kweemeko eziqhelekileyo zesityalo samandla enyukliya.
Shin, JH, Kong, BS, Jeong, C., Eom, HJ, Jang, C., & AlMousa, N. (2022). Shin, JH, Kong, BS, Jeong, C., Eom, HJ, Jang, C., & AlMousa, N. (2022). Shin, JH, Kong, BS, Chon, K., Eom, HJ, Jang, K., & Al-Musa, N. (2022). Shin, JH, Kong, BS, Jeong, C., Eom, HJ, Jang, C., & AlMousa, N. (2022). Shin, JH, Kong, BS, Jeong, C., Eom, HJ, Jang, C., & AlMousa, N. (2022). Shin, JH, Kong, BS, Chon, K., Eom, HJ, Jang, K., & Al-Musa, N. (2022).Ukuxhathisa ukuvuvukala kwe-austenitic stainless steel kunye ne-nanosized NbC esasazwa ngokulinganayo iyancipha phantsi kwe-irradiation kunye neeoni ezinzima.Ijenali yeMathiriyeli yeNyukliya.Ifumaneka apha: https://www.sciencedirect.com/science/article/pii/S0022311522001714?via%3Dihub.
Ukuzihlangula: Iimbono ezichazwe apha zezombhali ngokwesikhundla sakhe kwaye azibonisi izimvo ze-AZoM.com Limited T/A AZoNetwork, umnini kunye nomsebenzi wale webhusayithi.Esi silandulo siyinxalenye yemigaqo yokusetyenziswa kwale webhusayithi.
UShahir uphumelele kwiFaculty of Aerospace Engineering ye-Islamabad Institute of Space Technology.Wenze uphando olubanzi kwizixhobo ze-aerospace kunye ne-sensor, i-computational dynamics, izakhiwo ze-aerospace kunye nezinto eziphathekayo, ubuchule bokuphucula, i-robotics, kunye namandla acocekileyo.Kunyaka ophelileyo usebenze njengomcebisi ozimeleyo kwicandelo lobunjineli be-aerospace.Ukubhala kobugcisa kuye kwahlala kunamandla kaShahir.Nokuba uyaphumelela amawonga kukhuphiswano lwamazwe ngamazwe okanye uphumelele ukhuphiswano lokubhala lwasekuhlaleni, uyagqwesa.UShahir uthanda iimoto.Ukusuka kwiFomula 1 kumdyarho nokufunda iindaba zemoto ukuya kumdyarho wekart, ubomi bakhe bujikeleza iimoto.Uwuthanda kakhulu umdlalo wakhe kwaye uhlala ezama ukufumana ixesha lawo.Isquash, ibhola ekhatywayo, iqakamba, intenetya kunye nomdyarho zizinto azithandayo athanda ukuchitha ixesha nazo.
Ukubila okushushu, Shahr.(NgoMatshi 22, 2022).Ukuxhatshazwa kokuvuvukala kwe-alloy ye-reactor entsha ye-nanomodified ihlalutyiwe.Azonano.Ibuyiselwe ngoSeptemba 11, 2022 ukusuka https://www.azonano.com/news.aspx?newsID=38861.
Ukubila okushushu, Shahr."Uhlalutyo lwe-Swelling Resistance ye-Nano-Modified Reactor Alloys".Azonano.NgoSeptemba 11, 2022.NgoSeptemba 11, 2022.
Ukubila okushushu, Shahr."Uhlalutyo lwe-Swelling Resistance ye-Nano-Modified Reactor Alloys".Azonano.https://www.azonano.com/news.aspx?newsID=38861.(Ukusukela nge-11 kaSeptemba 2022).
Ukubila okushushu, Shahr.2022. Uhlalutyo lokumelana nokudumba kwe-reactor entsha ye-nanomodified alloys.AZoNano, ifikeleleke nge-11 kaSeptemba 2022, https://www.azonano.com/news.aspx?newsID=38861.
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