Kusankha njira ya titaniyamu alloy mbale

Titaniyamu aloyi ndi aloyi wopangidwa ndi titaniyamu ndi zinthu zina. Titaniyamu ili ndi mitundu iwiri ya makhiristo amtundu umodzi komanso wosiyanasiyana: wodzaza kwambiri ndi mawonekedwe a hexagonal pansi pa 882 ℃ α Titaniyamu, thupi lokhala ndi kiyubiki pamwamba pa 882 ℃ β Titanium. Tsopano tiyeni anzathu a RSM Technology Department kugawana njira kusankha titaniyamu aloyi mbale

　　Zofunikira zaukadaulo:

1. Mankhwala a titaniyamu alloy mbale ayenera kutsatira zomwe GB/T 3620.1, ndipo kupatuka kololedwa kwa mankhwala kudzayenderana ndi zomwe GB/T 3620.2 Demander amayang'ananso.

2. Kulakwitsa kovomerezeka kwa makulidwe a mbale kudzagwirizana ndi zomwe zili mu Table I.

3. Cholakwa chololeka cha m'lifupi mwa mbale ndi kutalika kwake chidzagwirizana ndi zomwe zili mu Table II.

4. Ngodya iliyonse ya mbale idzadulidwa mu ngodya yoyenera momwe zingathere, ndipo kudula kwa oblique sikudzapitirira kupatuka kovomerezeka kwa kutalika ndi m'lifupi mwa mbale.

Zinthu za alloy zitha kugawidwa m'magulu atatu malinga ndi momwe zimakhudzira kutentha kwakusintha:

① Stable α Phase, zinthu zomwe zimawonjezera kutentha kwa gawo ndi α Zinthu zokhazikika zimaphatikizapo aluminium, carbon, oxygen ndi nitrogen. Aluminiyamu ndiye chinthu chachikulu cha aloyi cha titaniyamu, chomwe chimakhala ndi zotsatira zoonekeratu pakuwongolera mphamvu ya aloyi kutentha kutentha komanso kutentha kwambiri, kuchepetsa mphamvu yokoka ndikuwonjezera zotanuka modulus.

② Stable β Phase, zinthu zomwe zimachepetsa kutentha kwa gawoli ndi β Zinthu zokhazikika zimatha kugawidwa m'mitundu iwiri: isomorphic ndi eutectoid. Zida za titaniyamu zimagwiritsidwa ntchito. Zakale zikuphatikizapo molybdenum, niobium, vanadium, ndi zina zotero; Zomalizazi zikuphatikizapo chromium, manganese, mkuwa, chitsulo, silicon, etc.

③ Zinthu zosalowerera ndale, monga zirconium ndi malata, sizimakhudza kwambiri kutentha kwa gawo.

Oxygen, nayitrogeni, carbon ndi haidrojeni ndizo zonyansa zazikulu muzitsulo za titaniyamu. Oxygen ndi nayitrogeni mu α Pali kusungunuka kwakukulu mu gawoli, komwe kumalimbitsa kwambiri titaniyamu aloyi, koma kumachepetsa pulasitiki. Nthawi zambiri zimanenedwa kuti zomwe zili mu oxygen ndi nayitrogeni mu titaniyamu ndi 0.15 ~ 0.2% ndi 0.04 ~ 0.05% motsatana. Hydrogen mu α Kusungunuka mu gawoli ndi kochepa kwambiri, ndipo hydrogen yambiri yomwe imasungunuka mu titaniyamu alloy idzatulutsa hydride, kupanga alloy brittle. Nthawi zambiri, hydrogen zomwe zili mu aloyi ya titaniyamu zimayendetsedwa pansi pa 0.015%. Kusungunuka kwa haidrojeni mu titaniyamu kumasinthidwa ndipo kumatha kuchotsedwa ndi vacuum annealing.