Ingxubevange yeAluminiyam eSebenza ngokuPhezulu: Ingxubevange yeAl-Sc

Ingxubevange yeAluminiyam eSebenza ngokuPhezulu: Ingxubevange yeAl-Sc

I-al-Sc ialloy luhlobo lwe-alloy aluminiyam olusebenza kakhulu. Kukho iindlela ezininzi zokuphucula ukusebenza kwe-aluminium alloy, phakathi kwayo ukuqiniswa kwe-micro-alloying kunye ne-toughening yintsimi yomda we-high-performance aluminium alloy research kwiminyaka engama-20 yakutshanje.

Indawo yokunyibilika ye-scandium yi-1541 ℃, kwaye leyo ye-aluminium yi-660 ℃, ngoko ke i-scandium kufuneka ifakwe kwi-aluminium alloy ngendlela ye-master alloy, eyona nto ingundoqo yokulungiselela i-aluminium alloy equkethe i-scandium. Kukho iindlela ezininzi zokulungiselela ii-alloys eziphambili, ezifana ne-doping method, i-scandium fluoride, indlela yokunciphisa i-scandium oxide yesinyithi, indlela ye-electrolysis yetyuwa etyhidiweyo njalo njalo. “

Indlela ye-doping kukongeza ngokuthe ngqo i-scandium yensimbi kwi-aluminium alloy, ebiza kakhulu, ilahleko evuthayo kwinkqubo yokunyibilikisa kunye neendleko eziphezulu ze-alloy master.

I-hydrogen fluoride enetyhefu isetyenziselwa ukulungiswa kwe-scandium fluoride ngentsimbi yokunciphisa i-thermal indlela ye-scandium fluoride, enezixhobo ezinzima kunye nobushushu obuphezulu bentsimbi yokunciphisa ukushisa.

Izinga lokubuyisela i-scandium ngensimbi yokunciphisa i-thermal ye-scandium oxide kuphela i-80%;

Isixhobo se-electrolysis yetyuwa etyhidiweyo sinzima kwaye izinga lokuguqulwa alikho phezulu.

Emva kokuthelekisa kunye nokukhetha, kulungele ngakumbi ukulungiselela i-Al-Sc master alloy ngokusebenzisa i-ScCl ityuwa etyhidiweyo ye-Al-Mg indlela yokunciphisa i-thermal.

Usebenzisa:

Ukongeza umkhondo we-scandium kwi-alloy ye-aluminium kunokukhuthaza ukucokiswa okuziinkozo kunye nokunyusa ubushushu bokuhlaziya nge-250.℃~280℃. Sisisulungesi esinamandla sengqolowa kunye ne-recrystallization inhibitor esebenzayo ye-aluminium alloy, enefuthe elicacileyo kwi-th.Ukwakhiwa kwe-e kunye neepropati ze-alloy kwaye iphucula kakhulu amandla ayo, ubulukhuni, i-weldability kunye nokumelana nokubola.

I-Scandium inesiphumo esihle sokuqinisa i-dispersion kwi-aluminium, kwaye igcina isakhiwo esizinzileyo esingatshintshiyo kwi-hot work or annealing treatment. Ezinye ii-alloys ngamashiti aqengqelekayo abandayo ane-deformation enkulu, eqhubeka igcina esi sakhiwo nasemva kokuba i-annealing. Ukuthintelwa kwe-scandium kwi-recrystallization kunokuphelisa ubume be-recrystallization kwindawo echaphazelekayo yobushushu be-weld, Isakhiwo se-subgrain ye-matrix sinokugqithiselwa ngokuthe ngqo kwi-as-cast structure ye-weld, eyenza idibeneyo edibeneyo ye-aluminium alloy equlethe i-scandium ibe nayo. amandla aphezulu kunye nokumelana nomhlwa.

Umphumo we-scandium kwi-corrosion resistance ye-aluminium alloy nayo ibangelwa ukulungiswa kweenkozo kunye nokuvinjelwa kwenkqubo ye-recrystallization.

Ukongezwa kwe-scandium kunokwenza ukuba i-alloy ye-aluminium ibe ne-superplasticity enhle, kwaye ukunyuswa kwe-aluminium alloy kunye ne-0.5% ye-scandium kunokufikelela kwi-1100% emva konyango lwe-superplastic.

Ke ngoko, ialloyi ye-Al-Sc kulindeleke ukuba ibe sisizukulwana esitsha sezinto ezikhaphukhaphu zolwakhiwo lwe-aerospace, inqwelomoya kunye nemizi-mveliso yeenqanawa, ezisetyenziselwa ubukhulu becala ukuwelda iinxalenye zesakhiwo se-aerospace, inqwelomoya kunye nenqanawa, imibhobho yealluminiyam yealkaline eyonakalisayo ephakathi, iitanki ze-oyile kaloliwe, iindawo eziphambili zezakhiwo zoololiwe abahamba ngesantya esiphezulu, njl

Ithemba lokufaka isicelo:

I-Sc-containing aluminium alloy inethuba elibanzi lesicelo kumasebe aphezulu-tech efana nenqanawa, ishishini le-aerospace, i-rocket kunye ne-missile, amandla enyukliya, njl. Ngokongeza i-scandium ye-trace, kunethemba lokuphuhlisa uluhlu lwesizukulwana esitsha sokusebenza okuphezulu. Izixhobo ze-aluminiyam ezisekelwe kwi-alloy ekhoyo ye-aluminium, njengamandla aphezulu kunye nokuqina okuphezulu kwe-aluminium alloy, amandla aphezulu Ingxubevange ye-aluminiyamu engagugiyo, amandla aphezulu e-nautron ukumelana ne-aluminiyam i-alloy njalo njalo.Ezi ngxubevange ziya kuba nethemba elinomtsalane kakhulu kwisicelo kwi-aerospace, amandla enyukliya kunye nokwakhiwa kweenqanawa ngenxa yeepropati zabo ezigqwesileyo ezibanzi, kwaye zingasetyenziswa nakwizithuthi ezilula. kunye noololiwe abahamba ngesantya esiphezulu. Ngoko ke, i-aluminium equkethe i-aluminium alloy ibe yenye into ekhangayo kunye neyona nto ikhuphisanayo ephezulu yokusebenza kwe-aluminium alloy emva kwe-AlLi ingxubevange. iscandium oxide. Kubaluleke kakhulu ukuphuhlisa i-alloy ye-aluminium ye-high-tech kunye nolwakhiwo lwelizwe lokukhusela e-China, kwaye i-AlSc inokudlala ngokupheleleyo kwiinzuzo zemithombo ye-scandium e-China kunye nokukhuthaza uphuhliso loshishino lwe-scandium kunye noqoqosho lwelizwe e-China. .