The recrystallization kutentha kwa lanthanum-doped molybdenum waya ndi apamwamba kuposa koyera molybdenum waya, ndipo ndi chifukwa pang'ono La2O3 akhoza kusintha katundu ndi dongosolo la molybdenum waya. Kupatula apo, La2O3 gawo lachiwiri la gawo lachiwiri litha kuonjezeranso mphamvu ya kutentha kwa chipinda cha molybdenum waya ndikuwongolera kutentha kwa chipinda pambuyo pa recrystallization.
Recrystallization Kutentha Kuyerekeza: The microstructure wa waya woyera molybdenum mwachionekere anakulitsa pa 900 ℃ ndi recrystallized pa 1000 ℃. Ndi kutentha kwa annealing, mbewu za recrystallization zimawonjezeka, ndipo minofu ya fibrous imachepetsa kwambiri. Kutentha kwa annealing kukafika pa 1200 ℃, waya wa molybdenum wakonzedwanso, ndipo mawonekedwe ake amawonetsa njere zofananira zofananiranso. Kutentha kumawonjezeka, njereyo imakula mosafanana ndipo imaoneka ngati njere zolimba. Ikalumikizidwa pa 1500 ℃, waya wa molybdenum ndi wosavuta kuthyoka, ndipo mawonekedwe ake amawonetsa njere zolimba. Mapangidwe a ulusi wa waya wa lanthanum-doped molybdenum adawonjezedwa pambuyo pa 1300 ℃, ndipo mawonekedwe ngati dzino adawonekera kumalire a ulusi. Pa 1400 ℃, njere zobwezeretsedwa zidawonekera. Pa 1500 ℃, mawonekedwe a ulusiwo adatsika kwambiri, ndipo mawonekedwe opangidwanso adawonekera, ndipo njerezo zidakula mosagwirizana. The recrystallization kutentha kwa lanthanum-doped molybdenum waya ndi apamwamba kuposa wa koyera molybdenum waya, amene makamaka chifukwa cha zotsatira za La2O3 gawo lachiwiri particles. Gawo lachiwiri la La2O3 limalepheretsa kusamuka kwa malire a tirigu ndi kukula kwambewu, motero kumawonjezera kutentha kwa recrystallization.
Kuyerekeza Kwakatundu Wazipinda: Kutalikira kwa waya wa molybdenum kumawonjezeka ndi kutentha kwa anneal kumawonjezeka. Pamene kutentha kwa anneal pa 1200 ℃, elongation imafika pamtengo wapatali. Elongation imachepa ndi kutentha kwa anneal kumawonjezeka. Yopangidwa ndi 1500 ℃, ndipo kutalika kwake kumakhala kofanana ndi ziro. The elongation wa La-doped molybdenum waya ndi ofanana ndi koyera molybdenum waya, ndi mlingo elongation kufika pazipita pamene annealed pa 1200 ℃. Ndiyeno elongation amachepetsa ndi kutentha kuwonjezeka. Chosiyana chokha ndicho kuchepetsa kuchepetsa ndi pang'onopang'ono. Ngakhale elongation wa lanthanum-doped molybdenum waya imachedwa pambuyo annealing pa 1200 ℃, elongation ndi apamwamba kuposa koyera molybdenum waya.
Nthawi yotumiza: Dec-19-2021