Kev lag luam tsim molybdenum alloys tuaj yeem muab faib ua Mo-Ti-Zr series, Mo-W series thiab Mo-Re series alloys, nrog rau Mo-Hf-C series alloys uas nag lossis daus muaj zog nrog hafnium carbide hais. TZM alloy muaj cov khoom zoo tshaj plaws thiab yog cov khoom siv dav tshaj plaws ntawm molybdenum. TZC (Mo-1.25 Ti-0.15 Zr-0.15C) alloy muaj siab kub zog thiab recrystallization kub dua TZM, tab sis nws yog ib qho nyuaj rau txheej txheem thiab nws daim ntawv thov yog txwv.
Molybdenum alloys muaj qhov tsis zoo xws li qis-kub brittleness, vuam brittleness, thiab kub-kub oxidation, yog li lawv txoj kev loj hlob yog txwv. Nws yog qhov nyuaj los txhim kho qhov kub siab oxidation tsis kam ntawm molybdenum alloys los ntawm alloying. Tam sim no, tsuas yog cov txheej tiv thaiv tau siv los txhim kho qhov kev ua tau zoo. Qhov teeb meem tseem ceeb hauv kev tshawb fawb ntawm molybdenum alloys yog txhawm rau txhim kho qhov kub thiab txias zog thiab recrystallization kub, thiab txhim kho qhov kub-kub plasticity ntawm cov khoom. Qhov teeb meem tseem ceeb hauv kev kawm ntawm cov ntaub ntawv ntshiab molybdenum yog txhawm rau txhim kho qhov kub thiab txias ntawm plasticity, uas yog, txo nws cov plasticity-txias hloov kub.
Txoj kev ntxiv dag zog tseem ceeb ntawm molybdenum alloys yog cov tshuaj tiv thaiv kom muaj zog, nag lossis daus thiab ua haujlwm tawv tawv (saib kev ntxiv dag zog ntawm cov hlau). Titanium, zirconium thiab hafnium yog cov ntsiab lus tseem ceeb ntawm molybdenum. Kev cuam tshuam ntawm alloying ntsiab ntawm hardness ntawm molybdenum dov tuav yog qhia nyob rau hauv daim duab ntawm nplooj ntawv tom ntej. Titanium, zirconium thiab hafnium tsis tuaj yeem tsuas yog kev daws teeb meem ntxiv dag zog thiab tswj qhov kub thiab txias ntawm cov khoom siv, tab sis kuj tsim cov theem ruaj khov thiab dispersed carbide, uas txhim kho lub zog thiab recrystallization kub ntawm cov khoom.
Interstitial impurities carbon, nitrogen, tshwj xeeb tshaj yog cov pa oxygen, muaj kev cuam tshuam loj heev rau kev hloov pauv ntawm plasticity-txias kub. Lawv solubility nyob rau hauv molybdenum yog heev tsawg (tsis ntau tshaj 1ppm nyob rau hauv chav tsev kub), thiab ntau interstitial ntsiab yog faib nyob rau hauv lub grain ciam teb nyob rau hauv daim ntawv ntawm molybdenum tebchaw, txo lub zog ntawm grain ciam teb thiab ua rau brittle puas ntawm cov nplej. Qhov sib ntxiv ntawm cov kab boron rau molybdenum alloy tuaj yeem kho cov nplej, ntxuav cov ciam teb thiab hloov cov morphology ntawm cov ciam teb, yog li txhim kho cov yas ntawm molybdenum: ntxiv cov kab xws li hlau thiab yttrium kuj tuaj yeem txhim kho qhov kub thiab txias. (saib interface). Xyoo 1955, G. Geach thiab J. Hughes tau tshawb pom tias rhenium tuaj yeem txhim kho cov yas ntawm molybdenum thiab tungsten, thiab tuaj yeem txo qhov kub ntawm molybdenum mus rau -200 ℃.