Hanyar zaɓi na farantin alloy titanium

Titanium alloy wani abu ne wanda ya ƙunshi titanium da sauran abubuwa. Titanium yana da nau'ikan lu'ulu'u iri biyu masu kama da juna: madaidaicin tsarin hexagonal ƙasa da 882 ℃ α Titanium, mai siffar jiki mai tsayi sama da 882 ℃ β Titanium. Yanzu bari abokan aiki daga Sashen Fasaha na RSM don raba hanyar zaɓi na faranti na alloy na titanium

　　Bukatun fasaha:

1. A sinadaran abun da ke ciki na titanium gami farantin karfe za su bi da tanadi na GB/T 3620.1, da kuma yarda sabawa da sinadaran abun da ke ciki zai bi da tanadi na GB/T 3620.2 a lokacin da Demander re inspects.

2. Kuskuren da aka yarda da kauri na farantin zai bi ka'idodin da ke cikin Table I.

3. Kuskuren da aka yarda da nisa da tsayin farantin zai bi ka'idodin da ke cikin Table II.

4. Kowane kusurwa na farantin karfe za a yanke shi a cikin kusurwar dama kamar yadda zai yiwu, kuma yankan da aka yi ba zai wuce abin da aka halatta ba na tsawon da nisa na farantin.

Ana iya raba abubuwan gami zuwa nau'i uku bisa ga tasirinsu akan yanayin canjin canji:

① Stable α Phase, abubuwan da ke haɓaka yanayin canjin lokaci sune α Stable abubuwa sun haɗa da aluminum, carbon, oxygen da nitrogen. Aluminum shine babban sinadari na alloy na titanium, wanda ke da tasirin gaske akan inganta ƙarfin gami a cikin zafin jiki da zafin jiki mai girma, rage ƙayyadaddun nauyi da haɓaka ma'aunin ƙarfi.

② Stable β Phase, abubuwan da ke rage yanayin canjin lokaci sune β Stable abubuwa za a iya raba su zuwa nau'i biyu: isomorphic da eutectoid. Ana amfani da samfuran alluran titanium. Na farko ya hada da molybdenum, niobium, vanadium, da dai sauransu; Na ƙarshe ya haɗa da chromium, manganese, jan karfe, ƙarfe, silicon, da dai sauransu.

③ Abubuwan tsaka-tsaki, kamar zirconium da tin, suna da ɗan tasiri akan yanayin canjin lokaci.

Oxygen, nitrogen, carbon da hydrogen sune manyan ƙazanta a cikin alluran titanium. Oxygen da nitrogen a cikin α Akwai babban solubility a cikin lokaci, wanda yana da tasiri mai mahimmanci akan titanium gami, amma yana rage filastik. Gabaɗaya an ƙayyade cewa abun ciki na oxygen da nitrogen a cikin titanium shine 0.15 ~ 0.2% da 0.04 ~ 0.05% bi da bi. Hydrogen a α Narkewar a cikin lokaci kadan ne, kuma da yawa hydrogen da aka narkar da shi a cikin alloy na titanium zai samar da hydride, yana sa gami gagaɗi. Gabaɗaya, abun ciki na hydrogen a cikin gami da titanium ana sarrafa shi ƙasa da 0.015%. Rushewar hydrogen a cikin titanium yana da jujjuyawa kuma ana iya cire shi ta hanyar cirewa.