Dab tsi yog Cov Khoom Tseem Ceeb Ntawm Txiav Gr5 Titanium Phaj Rau Vuam?

(1) Cov kab nrib pleb kub: cov kab nrib pleb kub uas tau hais los saum no yog hais txog cov kab nrib pleb uas cuam tshuam nrog vuam. Cov kab nrib pleb kub tuaj yeem faib dav rau hauv cov kab nrib pleb, microcracks, cov kab nrib pleb hauv HAZ (tshav kub-cuam tshuam cheeb tsam) thiab rov ua cov kab nrib pleb.
(2) Cov kab nrib pleb uas tsis muaj qhov kub thiab txias: qhov kub thiab txias qee zaum tshwm sim hauv martensitic txiav titanium daim hlau thiab qee qhov ferritic txiav titanium daim hlau nrog kev npaj martensitic. Vim tias lub hauv paus tseem ceeb ntawm nws qhov pib yog hydrogen dispersion, qib ntawm kev sib txuas ntawm cov pob qij txha thiab cov txheej txheem hardening, yog li cov kev daws teeb meem yog txo cov dispersion ntawm hydrogen nyob rau hauv cov txheej txheem vuam, haum rau preheating thiab tom qab vuam kub kho thiab txo qhov degree ntawm kev sib raug zoo.
(3) tsis kam ntawm cov pob qij txha welded: nyob rau hauv austenitic txiav titanium phaj thiaj li yuav txo tau qhov rhiab heev rau kub kub tawg, nyob rau hauv cov muaj pes tsawg leeg depicted ntawm ib txwm residual ferrite 5% -10%. Tab sis lub xub ntiag ntawm cov ferrites no ua rau txo qis qhov kub tsis kam. Nyob rau hauv lub duplex txiav titanium phaj rau welding, welded pob qij txha nyob rau hauv lub cheeb tsam ntawm austenite npaum li cas ntawm kev txo thiab cuam tshuam rau cov kuj. Tsis tas li ntawd, nrog rau qhov sib ntxiv ntawm ferrite, tus nqi kuj muaj qhov nyiam txo qis.

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