+ Titanium alloy

Cov (+) titanium alloys tau los ntawm kev ntxiv txhua hli stabilizing cov ntsiab lus rau titanium, thiab feem ntau ntawm lawv kuj ntxiv cov khoom ruaj khov, muaj cov yas zoo, yooj yim rau forged, calendered thiab stamped, thiab tuaj yeem ntxiv dag zog los ntawm quenching thiab aging. Lub zog tuaj yeem nce ntxiv los ntawm 50% - 100% tom qab kev kho cua sov TC4 yog ib qho (( + ) titanium alloy, muaj pes tsawg leeg Ti-6A1-4V, tom qab quenching thiab aging kho, lub microstructure yog bulk a + + koob a. Ib rab koob twg yog precipitated los ntawm -phase nyob rau hauv cov txheej txheem kev laus. Raws li TC4 muaj lub zog siab, zoo plasticity, ruaj khov lub koom haum ntawm 40000, siab creep zog, zoo toughness ntawm tsawg kub, thiab zoo tiv thaiv rau seawater kev nyuaj siab corrosion thiab tsis kam mus rau kub ntsev kev nyuaj siab corrosion, nws yog haum rau tsim cov khoom uas ua hauj lwm rau lub sij hawm ntev nyob rau hauv 4000C, engine qhov chaw uas yuav tsum tau ib tug tej yam degree ntawm high-temperature zog, nrog rau cov foob pob ua ntxaij thiab missiles. uas yog siv nyob rau hauv qis kub, xws li kua nitrogen roj tank qhov chaw.

Cam khwb cia titanium alloy muaj zog tensile zoo thiab tawg toughness, endurance lub zog thiab creep zog ze rau lub deformation ntawm lub alloy, tab sis lub plasticity thiab qaug zog zog yog qis dua. Table 15-2 teev cov qib thiab siv cov cam khwb cia titanium alloys hauv cov teb chaws loj thoob ntiaj teb.
Tuam Tshoj lub titanium casting pib nyob rau hauv 1964, thaum lub Beijing lub koom haum ntawm Aeronautical Materials coj tus thawj coj nyob rau hauv kev tshawb fawb ntawm titanium melting thiab casting tshuab, raws li los ntawm lub Northwest Nonferrous Hlau Processing Cog ntsia 150kg ntawm titanium melting khoom. Tam sim no, muaj ntau tshaj 10 kev tshawb fawb hauv tsev thiab tsim khoom hauv kev tsim kho thiab tsim cov titanium thiab nws cov alloy castings.
Hauv tsev casting ntawm titanium tseem yog lub ntsiab qauv txheej txheem ntawm machining graphite hom thiab pounding graphite hom, thiab precision casting txheej txheem yog tsis dav siv, thiab txawv teb chaws casting theem tseem muaj ib tug tej yam sib txawv.