Martensite yog cov hlau nplaum hlau tsim los ntawm quenching austenite ntawm qhov kev kub ceev. Vim tias qhov nrawm nrawm dhau lawm, cov pa roj carbon atom tsis muaj sijhawm los nthuav tawm ntawm cov qauv siv lead ua hauv qhov loj txaus los tsim cov cementite. Tom qab quenching, lub austenite hloov mus rau hauv ib tug muaj zog strained qauv supersaturated nrog cov pa roj carbon, yog li ua tiav kev txhim kho txhua yam zog thiab lub hom phiaj ntawm hardness.
Maraging steel yog cov pa roj carbon tsawg-nickel alloy nrog cov ntsiab lus npib tsib xee txog li 18 feem pua, thiab tuaj yeem ua alloyed nrog cobalt, molybdenum, titanium thiab lwm yam hlau tsis-ferrous.
Cov alloys no yog quenched los tsim martensite thiab tom qab ntawd raug rau nag lossis daus hardening kho cua sov ntawm 480 degree mus rau 500 degree los txhawb cov nag lossis daus ntawm intermetallic tebchaw xws li Ni3Mo thiab Ni3Ti.
Cov khoom zoo tshaj plaws ntawm maraging steel yog: ua ntej, nws muaj zog ultra-siab ntawm chav tsev kub, thiab tsawg deformation tuaj yeem lav tau tom qab kev kho cua sov yooj yim;
Thib ob, nws muaj qhov zoo ntawm cov pob txha toughness piv nrog quenched thiab tempered steels ntawm cov qib zoo sib xws, zoo heev solderability, yooj yim los tsim.
Cov hlau no muaj cov pob txha tawg siab, thiab lawv qhov cuam tshuam qaug zog qhia tau hais tias lawv tuaj yeem ua haujlwm tau zoo dua qub, xws li cov pom hauv cov khoom siv hluav taws xob.
Kev kho cua sov qis dua tso cai rau qhov deformation me me dua li cov hlau tsis tshua muaj zog, ua rau nws zoo tagnrho rau qhov ntev thiab nyias. Maraging steel feem ntau yog siv rau hauv kev tsim cov dav hlau tsaws iav, thiab tseem siv dav hauv lub ntsej muag thiab tag nrho lub taub hau ntawm cov koom haum golf siab heev.
