Kev lag luam ntshiab titanium series: Kev tshuaj xyuas ntawm qhov sib txawv ntawm lub zog thiab daim ntawv thov ntawm TA3 thiab TA4
Hauv thaj chaw loj ntawm cov ntaub ntawv tshawb fawb, titanium alloys nyob rau hauv txoj haujlwm tseem ceeb hauv ntau daim ntawv thov kev lag luam vim lawv lub cev thiab tshuaj lom neeg tshwj xeeb. Kev lag luam ntshiab titanium, ua ib ceg tseem ceeb ntawm titanium alloys, yog dav siv hauv aerospace, khoom siv kho mob, khoom siv tshuaj thiab lwm yam kev lag luam vim nws qhov zoo corrosion kuj, lub teeb yuag, siab zog thiab zoo biocompatibility. Ntawm lawv, TA1, TA2, TA3 thiab TA4 yog plaub qib tseem ceeb ntawm kev lag luam ntshiab titanium. Txawm hais tias lawv yog tag nrho cov-theem alloys nyob rau hauv cov nqe lus ntawm microstructure, muaj qhov sib txawv tseem ceeb hauv cov ntsiab lus interstitial, cov khoom siv kho tshuab thiab daim ntawv thov. Kab lus no yuav tsom mus rau qhov sib txawv ntawm lub zog thiab kev siv ntawm ob qib ntawm TA3 thiab TA4.
1. Interstitial ntsiab: qhov chaw ntawm lub zog
Qhov sib txawv ntawm lub zog ntawm kev lag luam ntshiab titanium feem ntau yog vim qhov sib txawv ntawm cov ntsiab lus ntawm nws cov ntsiab lus interstitial, tshwj xeeb tshaj yog cov ntsiab lus ntawm oxygen (O²) thiab hlau (Fe). Cov ntsiab lus interstitial xa mus rau cov atoms uas tuaj yeem sau qhov khoob hauv titanium siv lead ua lattice, thiab lawv muaj kev cuam tshuam ncaj qha rau cov khoom siv ntawm titanium.
1) TA3 titanium: Piv nrog TA1 thiab TA2, cov ntsiab lus ntawm cov ntsiab lus interstitial hauv TA3 tau nce, tshwj xeeb tshaj yog cov ntsiab lus ntawm oxygen thiab hlau. Qhov kev nce no ua rau qhov kawg tensile stress (UTS) ntawm TA3, muab nws lub zog ntau dua. Txawm li cas los xij, kev nce hauv lub zog feem ntau yog nrog kev txo qis hauv ductility, uas yog, txo qis hauv elongation.
2) TA4 titanium: Raws li qib siab tshaj plaws ntawm cov khoom lag luam ntshiab titanium, TA4 muaj cov ntsiab lus siab tshaj plaws ntawm cov khoom sib txuas, tshwj xeeb tshaj yog cov ntsiab lus ntawm oxygen thiab hlau, uas yog siab dua lwm qib. Qhov no ua rau qhov kawg tensile kev nyuaj siab ntawm TA4 ntau tshaj ob zaug ntawm TA1, ua rau nws ua tus thawj coj nyob rau hauv lub lag luam ntshiab titanium series. Txawm tias muaj kev txi nyob rau hauv ductility, TA4 lub siab lub zog ua rau nws zoo heev nyob rau hauv daim ntawv thov uas yuav tsum tau nws mus rau tiv heev loads.
2. Qhov txawv ntawm daim ntawv thov teb
1) TA3 titanium: Vim nws lub zog nruab nrab thiab qee qhov ductility, TA3 titanium tau siv dav hauv thaj chaw aerospace. Piv txwv li, nws yog feem ntau siv los ua cov khoom siv rau cov dav hlau thiab foob pob hluav taws, nrog rau cov khoom uas yuav tsum tau tiv taus qee qhov siab tab sis tsis raug rau qhov chaw hnyav heev. Tsis tas li ntawd, TA3 kuj tseem siv rau hauv kev tsim cov khoom siv kho mob, xws li cov cuab yeej phais thiab cov khoom cog, vim nws cov biocompatibility zoo.
2) TA4 titanium: Nrog nws cov khoom muaj zog zoo heev, TA4 titanium plays lub luag haujlwm tsis tuaj yeem hloov pauv hauv cov teb uas yuav tsum tau tiv taus qhov hnyav hnyav thiab ib puag ncig huab cua. Piv txwv li, hauv kev tshawb nrhiav dej hiav txwv sib sib zog nqus thiab cov roj rho tawm, TA4 titanium yog siv los tsim cov khoom tseem ceeb xws li cov plhaub thiab cov kav dej siab ntawm cov dej hiav txwv tob. Nyob rau tib lub sij hawm, vim nws zoo corrosion kuj thiab kub stability, TA4 kuj yog lug siv nyob rau hauv kev tsim kho ntawm cov khoom siv tshuaj thiab nuclear fais fab nroj tsuag.
Raws li ob qib tseem ceeb ntawm kev lag luam ntshiab titanium, TA3 thiab TA4 muaj qhov sib txawv loj hauv lub zog thiab daim ntawv thov. TA3, nrog rau nws lub zog nruab nrab thiab zoo ductility, qhia tau hais tias dav daim ntawv thov kev cia siab nyob rau hauv aerospace thiab khoom kho mob teb; thaum TA4, nrog nws cov khoom muaj zog zoo heev, tuaj yeem siv rau hauv qhov chaw huab cua xws li kev tshawb nrhiav hauv hiav txwv tob, kev tshawb nrhiav roj, thiab cov khoom siv tshuaj. plays lub luag hauj lwm irreplaceable. Qhov sib txawv no tsis yog tsuas yog vim qhov sib txawv ntawm lawv cov ntsiab lus interstitial, tab sis kuj yog cov khoom ntawm kev sib xyaw ntawm cov khoom siv science thiab engineering technology, muab cov kev daws teeb meem rau ntau qhov chaw. Nrog rau kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis thiab kev nthuav dav ntawm kev siv, kev lag luam ntshiab titanium series yuav txuas ntxiv ci rau theem ntawm cov ntaub ntawv tshawb fawb.
