Qiimaha Warshada waxay ku iibisaa budada Niobium oo leh Nb iyo CAS No 7440-03-1 Alloys-Entropy High-Entropy(HEA)

superalloy

Qayb weyn oo ka mid ah niobium-ka adduunka ayaa loo isticmaalaa soo saarista nikkel, chromium iyo birta-ku-saleysan superalloys qaab macdan saafi ah ama qaab saafi ah ferric niobium iyo niobium nikkel alloys. Alloys-kan waxa loo isticmaalaa matoorada jet-ka, mishiinnada marawaxadaha gaaska, qaybaha gantaallada, dab-jaraha iyo qalabka dabka u adkaysta. Niobium waxay sameyn doontaa wejiga y qaab dhismeedka hadhuudhka ee superalloy. Alloyskan guud ahaan waxay ka kooban yihiin ilaa 6.5% niobium. Incone1718 alloy waa mid ka mid ah aluminium-niobium-nickel-ku salaysan, waxa ku jira curiye kasta waa: nikkel 50%, chromium 18.6%, birta 18.5%, niobium 5%, furaha 3.1%, titanium 0.9% iyo aluminium 0.4%. Codsiyada waxaa ka mid ah walxo hawada sare leh, sida loo isticmaalay Project Gemini.

Alloy-ka Niobium

C-103 waa daawaha niobium ka kooban 89% niobium, 10% hafnium iyo 1% titanium, kaas oo loo isticmaali karo in dareere ah gantaalada nuugadiisa, sida engine ugu weyn ee module dayaxa Apollo. Qaybta adeegga Apollo waxay isticmaashay daawaha qalin oo kala duwan. Maadaama niobium uu bilaabo inuu oxidize ka sarreeyo 400 ° C, si looga hortago inuu dillaaco, dahaarka ilaalinta waa in lagu dhejiyaa dusha sare.

Niobium ayaa sidoo kale door muhiim ah ka ciyaara daaweynta qalliinka, kaliya looma isticmaali karo in lagu sameeyo qalabka caafimaadka, laakiin sidoo kale waa "wax la qabsiga noolaha", sababtoo ah waxay leedahay iska caabin aad u fiican, ma la falgeli doonto walxaha dareeraha ah ee jidhka bini'aadamka. , oo ku dhawaad ​​gebi ahaanba ma dhaawacayso unugyada jidhka bayooloji, waayo, hababka jeermis-diridda waa la qabsan karaa. Markaa waxay ku xidhnaan kartaa unugyo dabiici ah muddo dheer waxayna si aan waxyeello lahayn ugu sii jirtaa jidhka.