Titanium Alloy Principles

Alloys na Titanium Alloys ne da suka haɗa da titanium tare da wasu abubuwan da aka ƙara a ciki. Titanium has two allomorphic forms: -titanium with a close-packed hexagonal structure below 882℃, and -titanium with a body-centered cubic structure above 882℃.

Ana iya raba abubuwan haɗin gwiwa zuwa nau'i uku dangane da tasirinsu akan yanayin canjin lokaci:

① Abubuwan da ke daidaita lokaci kuma suna haɓaka yanayin canjin lokaci sune - abubuwa masu daidaitawa, kamar aluminum, carbon, oxygen, da nitrogen. Aluminum shine sinadari na farko na alloying a cikin alloys na titanium, yana inganta ƙarfin gami sosai a cikin ɗaki da yanayin zafi mai girma, yana rage takamaiman nauyi, da haɓaka madaidaicin ƙarfinsa.

② Abubuwan da ke daidaita lokaci da rage zafin canjin lokaci sune - abubuwa masu daidaitawa, waɗanda za a iya raba su zuwa nau'ikan isomorphous da eutectoid. Misalai na farko sun haɗa da molybdenum, niobium, da vanadium; na karshen sun hada da chromium, manganese, jan karfe, iron, da silicon.

③ Abubuwan da ke da ɗan tasiri akan yanayin canjin lokaci abubuwa ne na tsaka tsaki, kamar zirconium da tin.

Oxygen, nitrogen, carbon, da hydrogen sune manyan ƙazanta a cikin alluran titanium. Oxygen da nitrogen suna da babban solubility a cikin lokaci, suna ƙarfafa titanium gami da mahimmanci amma suna rage filastik. Abubuwan da ke cikin iskar oxygen da nitrogen a cikin titanium yawanci ana iyakance su zuwa 0.15-0.2% da 0.04-0.05%, bi da bi. Hydrogen yana da ƙananan solubility a cikin lokaci, kuma hydrogen da ya wuce kima da aka narkar da shi a cikin alluran titanium na iya samar da hydrides, yana yin gawa mai gauraye. Abubuwan da ke cikin hydrogen a cikin alloys titanium yawanci ana sarrafa su a ƙasa da 0.015%. Rushewar hydrogen a cikin titanium mai jujjuyawa ne kuma ana iya cire shi ta hanyar cirewa.