Ku ya 17 Mata, Uruganda 7103 rw’Ikigo cya gatandatu cy’ubumenyi n’ikoranabuhanga mu kirere cyakoze ikizamini gifite moteri ya ogisijeni ya kerosene y’amazi inyuma ya pompe ya kabiri y’imodoka nshya yo mu gihugu cyanjye. Ikizamini cyo gukora cyatangiye ukurikije uburyo bwateganijwe, moteri ikora amasegonda 10.
Moteri yiki kizamini ikora titanium alloy nini ya nozzle thrust chambre nshya yatunganijwe mugihugu cyanjye, igabanya cyane uburemere bwa moteri. Inteko yose ya moteri ifata gahunda yo guteranya. Iki kizamini gikora neza kugenzura neza niba bishoboka titanium alloy nozzle gahunda.
Hashingiwe ku cyumba gisanzwe cyo gusunika moteri, igisekuru gishya cyogutwara abantu roketi ya kabiri pompe yinyuma ya swing ogisijeni ya kerosene ikora moteri ya titanium alloy nozzles kugirango hamenyekane isano iri hagati yimikorere isanzwe ya chambre umuringa wibyuma na titanium-titanium imiterere, no kurushaho kugabanya uburemere bwa moteri, kunoza igipimo cya misa-ya-moteri, no kunoza ubushobozi bwo gutwara roketi.
Biravugwa ko mu ntangiriro yumushinga wubu bwoko bwa moteri, igihugu cyanjye nta bunararibonye gifite mugutezimbere no gukora umusaruro munini wa titanium alloy nozzles, kandi byose bigomba "gutangirira ku ntangiriro". Mu guhangana n’akazi katoroshye ko gukora ubushakashatsi niterambere, uruganda 7103 rwashizeho itsinda ryubushakashatsi niterambere ryitiriwe titanium alloy nini nini. Imbere yikibazo cya tekiniki nyuma yikindi, itsinda ryubushakashatsi ryateje imbere byimazeyo umwuka wo mu kirere, bakora ubushakashatsi bwa tekinike, kandi bakusanya ubwenge kugirango bakemure ibibazo. Kugirango habeho iterambere ryiterambere rya titanium alloy nozzle, itsinda ryubushakashatsi rihora ritegura inama zisanzwe kugirango zihuze mugihe, zige kandi zikemure ibibazo ningorane mubikorwa byiterambere.
Nyuma yimyaka 5, itsinda ryubushakashatsi ryatsinze uburyo butandukanye bwikoranabuhanga ryingenzi, ryateje imbere uruganda rwanjye rwa mbere runini runini rwa titanium alloy nozzle thrust chambre, maze ruyigeza kubizamini nkuko byari byateganijwe. Ubushakashatsi bwo guhuza icyerekezo kimwe cya TC4 titanium alloy bwakorewe kuri mashini yo gupima ubushyuhe bwa Gleeble-3800 kugirango bige imyitwarire ihindagurika yubushyuhe bwo hejuru ya alloy mu bihe bya compression ingana na 50%, ubushyuhe bwa 700-900 ℃ na a igipimo cyingutu cya 0.001-1 s-1.
Microstructure ya TC4 titanium alloy nyuma yubushakashatsi bwo kugabanya ubushyuhe bwo hejuru bwagaragajwe na microscope ya metallografiya, hakozwe ubushakashatsi bwimbaraga za recrystallisation ya TC4 titanium alloy, kandi hanasesenguwe ibintu bigira ingaruka zikomeye kuri spheroidisation ya TC4 titanium alloy yubatswe. Ikibazo gikomeye cyagenwe no guhuza umuvuduko ukabije wumurimo no kugabanuka kumurongo hamwe na cubic polinomial, kandi moderi ya spheroidisation kinetic yakozwe hifashishijwe umurongo uhangayikishije umurongo wa TC4 titanium. Ibisubizo byerekana ko kwiyongera k'ubushyuhe bwo guhindura no kugabanuka kw'igipimo giteza imbere gahunda yo kongera imbaraga.
Igihe cyoherejwe: Gicurasi-16-2022