Microstructure Evolution Thiab Cov Khoom Ua Kom Zoo Ntawm TA10 Titanium Alloy Kub Rolled Sheet

Hauv kev pabcuam huab cua xws li petrochemical, shipbuilding, nuclear fais fab engineering thiab marine ib puag ncig, cov ntaub ntawv tau ntsib nrog ntau yam kev cov nyom xws li kub siab, siab siab thiab muaj zog corrosion, uas tso rau pem hauv ntej siab yuav tsum tau rau cov kev ua tau zoo ntawm cov ntaub ntawv, tshwj xeeb tshaj yog corrosion kuj. Titanium thiab titanium alloys sawv tawm rau lawv qhov qis dua, siab zog, siab tawv thiab tau ua cov ntaub ntawv tseem ceeb hauv cov teb no. Txawm li cas los xij, kev tiv thaiv corrosion ntawm titanium alloys nyob rau hauv qee yam kev mob, xws li kev tiv thaiv corrosion los ntawm kev txo cov acids thiab crevice corrosion, tseem yuav tsum tau txhim kho. Vim li no, TA10 titanium alloy (Ti-0.3Mo-0.8Ni) tau tsim, uas tsis muaj cov hlau tsis tshua muaj, muaj kev ua tau zoo heev, thiab muaj kev tiv thaiv zoo heev los txo cov kua qaub, kub kub. chloride corrosion, thiab crevice corrosion, thiab yog dav siv nyob rau hauv ib tug xov tooj ntawm cov tseem ceeb teb.
Txawm hais tias muaj ntau qhov zoo ntawm TA10 titanium alloy, nws cov nqi siab tseem yog qhov tseem ceeb txwv nws txoj kev siv dav. Qhov no feem ntau yog vim tus nqi siab ntawm titanium sponge raw cov ntaub ntawv, complexity ntawm ntau lub tshuab nqus tsev melting txheej txheem, thiab ua haujlwm ntev. Txhawm rau txo tus nqi thiab txhim kho kev tsim khoom, kev siv hluav taws xob beam melting ua ke nrog cov tshuab kub dov los npaj TA10 titanium alloy strip coils tau dhau los ua cov txheej txheem tsim tawm tshiab. Cov txheej txheem no tsis tsuas yog ua kom luv luv ntawm kev ua haujlwm, tab sis kuj ua rau cov khoom lag luam nce ntxiv thiab txo tus nqi tag nrho.

Tsis ntev los no, Shenyang University of Technology thiab Suav Academy ntawm Kev Tshawb Fawb Lub Tsev Kawm Ntawv ntawm Hlau thiab Yunnan Titanium Kev Lag Luam Kev Tshawb Fawb Pab Pawg hauv "tshwj xeeb casting thiab non-ferrous alloys" phau ntawv xov xwm luam tawm cov kev tshawb fawb tshiab, kev sib tham tob ntawm 930 degree kub dov rau. lub TA10 titanium alloy phaj microstructure thiab chav kub txhua yam khoom ntawm qhov cuam tshuam. Txoj kev tshawb no qhia tau hais tias cov txheej txheem kub dov tau zoo refines microstructure ntawm TA10 titanium alloy, tsim ib tug complex qauv tsim ntawm matrix, Ti2Ni hais nyob rau hauv grain ciam teb thiab nplua-phase hais diffusely faib nyob rau hauv lub matrix. Qhov no microstructure feature tsis tsuas yog txhim kho corrosion kuj ntawm cov khoom siv, tab sis kuj ua rau nws cov khoom siv kho qhov muag pom muaj zog anisotropy, tshwj xeeb tshaj yog nyob rau hauv txoj kev transverse, Young's modulus, yield zog thiab tensile zog yog zoo dua li dov kev taw qhia.
Txheej txheem cej luam ntawm kev tshawb fawb methodology:
Cov ntaub ntawv npaj: Ti-0.3Mo-0.8Ni alloy slabs tau yaj nyob rau hauv ib lub tshuab hluav taws xob lub txaj txias rauv, ua raws li kev kho mob oxidation thiab preheating rau 930 degree tuav, thiab thaum kawg dov rau hauv daim hlau nrog lub thickness ntawm 3 hli los ntawm 1450 hli kub dov zeb.
Microstructure tsom xam: Siv metallurgical microscope, scanning electron microscope thiab kis tau tus mob electron microscope, ua ke nrog EDS elemental tsom xam, lub microstructure ntawm cov cam khwb cia thiab dov daim hlau tau soj ntsuam thiab soj ntsuam kom meej.
Kev ntsuas cov khoom siv tshuab: Npaj cov qauv tensile raws li cov qauv txheej txheem, thiab kuaj cov khoom siv kho tshuab ntawm chav tsev kub ntawm lub tshuab ntsuas hluav taws xob tensile, suav nrog lub zog tawm los, lub zog tensile thiab lwm yam ntsuas tseem ceeb.
Cov ntsiab lus tseem ceeb ntawm cov txiaj ntsig tshawb fawb:
Cov txheej txheem kub dov zoo txhim kho microstructure ntawm TA10 titanium alloy, refines cov nplej thiab txhawb cov diffuse tis ntawm -phase hais.
Cov ntawv dov muaj cov khoom siv sib hloov zoo heev, uas muab kev txhawb zog rau kev siv cov khoom siv sib txawv.
Txoj kev tshawb no nthuav tawm qhov kev sib txuas ntawm qhov nruab nrab ntawm microstructure thiab mechanical zog, uas muab cov hauv paus kev tshawb fawb ntxiv rau kev ua kom zoo dua qub thiab siv TA10 titanium alloy.
Nyob rau hauv cov ntsiab lus, txoj kev kawm ntawm microstructure evolution thiab cov cuab yeej optimization ntawm TA10 titanium alloy kub dov ntawv tsis tsuas yog muab ib lub tswv yim tshiab rau tus nqi qis thiab high-efficiency npaj ntawm titanium alloy cov ntaub ntawv, tab sis kuj nteg lub hauv paus ruaj khov rau kev txhim kho ntawm kev ua tau zoo ntawm cov khoom siv hauv qhov chaw pabcuam huab cua.