Tembiricha yekudzokorodza yewaya ye molybdenum ine lanthanum yakakwira kupfuura waya ye molybdenum yakachena, uye izvi zvinokonzerwa nekuti huwandu hushoma hweLa2O3 hunogona kuvandudza hunhu uye chimiro chewaya ye molybdenum. Pamusoro pezvo, La2O3 second phase effect inogona zvakare kuwedzera simba retembiricha yewaya ye molybdenum uye kuwedzera kuputsika kwetembiricha yemumba mushure mekudzokorodza.
Kuenzanisa Tembiricha yeRecrystallization: Zviri pachena kuti chimiro chewaya yakachena yemolybdenum chakakura pa900 ℃ uye chakagadziriswazve pa1000 ℃. Nekuwedzera kwetembiricha ye annealing, tsanga dze recrystallization dzinowedzerawo, uye fibrous tissues dzinoderera zvakanyanya. Kana tembiricha ye annealing yasvika pa1200 ℃, waya ye molybdenum yagadziriswazve zvizere, uye chimiro chayo chinoratidza tsanga dzakagadziriswazve dzakafanana zvakaenzana. Sezvo tembiricha ichiwedzera, tsanga inokura zvisina kuenzana uye inoita kunge tsanga dzakakora. Kana yakasungirirwa pa1500 ℃, waya ye molybdenum iri nyore kupwanya, uye chimiro chayo chinoratidza tsanga dzakakora dzakafanana. Chimiro chefiber chewaya ye lanthanum-doped molybdenum chakawedzera mushure mekunge yakasungirirwa pa1300 ℃, uye chimiro chakaita semazino chakaonekwa pamuganhu wefiber. Pa1400 ℃, tsanga dzakagadziriswazve dzakaonekwa. Pa1500 ℃, magadzirirwo efiber akadzikira zvakanyanya, uye chimiro che recrystallized chakaonekwa pachena, uye tsanga dzakakura zvisina kuenzana. Tembiricha ye recrystallization ye lanthanum-doped molybdenum wire yakakwira kupfuura ye pure molybdenum wire, iyo inonyanya kukonzerwa nemhedzisiro ye La2O3 second phase particles. La2O3 second phase inotadzisa kufamba kwegorosi nekukura kwegorosi, nokudaro ichiwedzera tembiricha ye recrystallization.
Kuenzanisa Zvimiro zveMichina yeKupisa Kwemumba: Kureba kwewaya yemolybdenum yakachena kunowedzera nekupisa kweannealing kuchiwedzera. Kana tembiricha yeanneal pa1200 ℃, kureba kunosvika pakakwirira. Kureba kunoderera nekupisa kweanneal kuchiwedzera. Annealed pa1500 ℃, uye kureba kwayo kwakaenzana ne zero. Kureba kwewaya yemolybdenum yeLa-doped kwakafanana newaya yemolybdenum yakachena, uye mwero wekukwirira unosvika pakakwirira kana annealed pa1200 ℃. Uye ipapo kureba kunoderera nekupisa kunowedzera. Chinosiyana chete ndechekuti mwero wekudzikisa unononoka. Kunyangwe kureba kwewaya yemolybdenum yelanthanum-doped kunoderedzwa mushure mekunamira pa1200 ℃, kureba kwacho kwakakwira kupfuura waya yemolybdenum yakachena.
Nguva yekutumira: Zvita-19-2021