Titanium: Tshawb Nrhiav Kev Hloov Kho Cov Ntawv Thov hauv Biomedicine

Hauv thaj chaw loj ntawm biomedicine, titanium tau ntev ua lub luag haujlwm tseem ceeb vim nws lub cev thiab tshuaj lom neeg tshwj xeeb. Tshwj xeeb, ob qho tib si classic titanium alloys, Ti-6Al-4V thiab Ti-6Al-4VELI, yog ib qho khoom xaiv rau kev cog qoob loo. Txawm li cas los xij, nrog rau kev tshawb nrhiav kev tshawb fawb tob zuj zus, tib neeg tau maj mam pom tias cov ntsiab lus vanadium hauv cov hlau no tuaj yeem ua rau muaj kev hem thawj rau tib neeg lub cev, thiab txawm tias tsis muaj txoj cai tseem ceeb txwv tsis pub siv, daim ntawv thov ntawm Ti{{4} }Al-4V series ntawm alloys nyob rau hauv lub teb ntawm biomedicine tau qhia ib tug poob zuj zus.
Nyob rau hauv lub ntsej muag ntawm qhov kev sib tw no, pab pawg tshawb fawb thoob ntiaj teb tau mob siab rau lawv tus kheej rau kev tshawb fawb thiab kev tsim kho tshiab titanium alloys. Cov kws tshawb fawb Swiss tau ua tus thawj coj hauv kev ua tiav thiab txhim kho Ti-6Al-7Nb alloy, uas tau ua tiav rau kev siv tshuaj kho mob. Hauv Suav teb, Beijing Nonferrous Metals Research Institute thiab Baoji Nonferrous Metals Processing Plant pab pawg tshawb fawb tshawb fawb koom tes, sib koom ua ke tsim cov tshuaj tsis muaj vanadium-free titanium alloy, cov txiaj ntsig tsis tsuas yog dhau los ntawm kev sim tshuaj kho mob nruj heev, tab sis kuj yeej lub Tuam Tshoj Nonferrous Hlau Kev Lag Luam. Kev tshawb fawb thiab thev naus laus zis thawj zaug hauv xyoo 2001, kos npe rau Tuam Tshoj cov titanium alloys hauv kev kho mob ua tau zoo heev.

Tsis tas li ntawd, lub teb chaws Yelemees, Is Nrias teb thiab lwm lub teb chaws ntawm pab neeg tshawb fawb tshawb fawb tsis kam ua lag luam, tau tsim cov txheej txheem tshiab kho mob titanium alloys xws li Ti-5Al-2.5Fe, Ti{{ 3}}Al-1.5B and Ti-15Mo-5Zr-3Al. Qhov tshwm sim ntawm cov alloys no tsis tsuas yog txhawb kev xaiv ntawm cov ntaub ntawv hauv biomedical teb, tab sis kuj muab cov neeg mob nrog ntau hom kev kho mob.
Nws yog ib qho tsim nyog hais tias nrog kev xav tau ntau ntxiv rau biocompatibility, cov kws tshawb fawb tau pib ua tib zoo saib xyuas qhov cuam tshuam ntawm cov ntsiab lus alloying ntawm tib neeg lub cev. Kev tshawb fawb hauv xyoo 1990 tau pom tias txhuas tsis tsuas yog cuam tshuam rau kev ua haujlwm ntawm lub paj hlwb, tab sis kuj muaj qee yam cuam tshuam nrog Alzheimer's disease. Yog li ntawd, kev tsim cov titanium alloys tshiab uas tsis muaj tshuaj lom thiab biocompatible tau dhau los ua qhov tseem ceeb tshaj plaws.
Tawm tsam keeb kwm yav dhau los no, pab pawg tshawb fawb los ntawm Tebchaws Meskas, Nyij Pooj thiab lwm lub tebchaws tau rov qab los ua ntej, thiab lawv tau ua tiav cov txheej txheem tshiab -titanium alloys siv cov khoom tsis muaj tshuaj lom xws li molybdenum, niobium, tantalum thiab zirconium. Cov alloys tsis tsuas yog muaj biocompatibility zoo heev, tab sis kuj muaj qhov qis qis ntawm elasticity, uas yog ze rau ntawm cov pob txha ntawm tib neeg, yog li txhim kho kev ruaj ntseg thiab kev nplij siab ntawm kev cog qoob loo.
Hauv cov ntsiab lus, kev siv titanium hauv kev siv tshuaj biomedical tau dhau los ua qhov tsis tau pom dua tshiab thiab hloov pauv. Nrog kev tshwm sim tsis tu ncua ntawm kev kho mob titanium alloys tshiab thiab kev nce qib ntawm kev siv thev naus laus zis, peb muaj laj thawj ntseeg tias titanium hlau yuav ua lub luag haujlwm tseem ceeb dua nyob rau yav tom ntej biomedical field, pab txhawb ntau lub zog ua rau tib neeg noj qab haus huv.