YUAV UA LI CAS NTAWM CHEMISTRY & STEEL ZAUM TXHEEM
NanoSteel cov cuab yeej siv tau tsim hauv cov ntawv coj mus muag phaj ntau lawm, siv cov khoom qub, thiab tsis xav tau qhov sib ntxiv ntawm cov kev ua tshwj xeeb.
Nyob rau hauv cov hlau zeb, tus xaiv cov alloy yog tsis tu ncua nrum rau hauv slabs siv cov khoom siv cov khoom siv high-throughput. Thaum solidification, cov hlau muaj cov dendritic lug nrog austenite grains thiab interdendritic pinning theem uas muaj nanoprecipitates. Cov duab ntawm cov qauv no, nrog rau ntxiv cov kauj ruam hauv txoj kev txhim kho, yog muaj nyob hauv daim duab hauv qab no.
Nyob rau theem tom ntej, lub slabs yog rhuab nyob rau hauv qhov cub tawg thiab kub dov kom txo thickness - ib txhij ua tus Nanomodal Structure. Lub Nanomodal Structure yog qhov tseem ceeb qhov loj qhov me me yuav txo qhov chaw, ua rau kev txhim kho hauv cov khoom.
Tom ntej no, daim ntawv no yog txias heev, uas tseem ntxiv nws lub zog. Lub Puag Muaj Zog Nanomodal qauv ntawm daim ntawv cem txias vim los ntawm kev sib deev loj heev los ntawm kev siv cov txheej txheem nrog cov theem hloov. Thaum lub sij hawm no, cov qauv muaj hloov nanoscale ferrite nplej, khaws cia austenite, thiab nanoprecipitates uas ua rau muaj zog ntxiv nrog kev txuam txo nyob rau hauv elongation.
Nyob rau lub sij hawm no, cov khoom yuav tsum tau ua rau kom rov tuaj ua ntej nws tuaj yeem siv rau tsheb yam khoom ua ke. Tsab ntawv teev npe ntawm cua sov recrystallizes lub alloy, tshem tawm cov hauj lwm txias-ua hauj lwm, thiab muab ib theem transformation ntawm ferrite rov qab rau austenite. Thaum twg daim ntawv nrog cov txheej txheem recrystallized deforms, nws ua rau tsim ntawm Mixed Microconstituent qauv muab cov khoom sib txuas ua ke ntawm tensile zog thiab elongation.