Cov txheej txheej hnav-tiv taus ntawm cov hlau feem ntau yog chromium alloy, thiab lwm yam alloys xws li manganese, molybdenum, niobium thiab npib tsib xee kuj ntxiv.Cov carbides hauv cov qauv metallographic yog fibrous tis, thiab cov kev taw qhia fiber ntau yog perpendicular rau saum npoo.Lub micro hardness ntawm carbide tuaj yeem ncav cuag siab dua hv1700-2000, thiab qhov tawv tawv tuaj yeem ncav cuag HRC58-62.Alloy carbides muaj qhov ruaj khov ntawm qhov kub thiab txias, tswj kev ua haujlwm siab, thiab muaj kev tiv thaiv oxidation zoo.Lawv tuaj yeem siv tau ib txwm nyob hauv qab 500 ℃.
Cov txheej hnav-tiv taus muaj cov kab nqaim (2.5-3.5mm), txoj kab dav (8-12mm), nkhaus (s, w), thiab lwm yam;Nws yog tsim los ntawm chromium alloy, thiab lwm yam alloys xws li manganese, molybdenum, niobium, npib tsib xee thiab boron kuj ntxiv.Cov carbides nyob rau hauv cov qauv metallographic yog faib rau hauv daim ntawv fibrous, thiab cov kev taw qhia fiber ntau yog perpendicular rau saum npoo.Cov ntsiab lus carbide yog 40-60%, microhardness tuaj yeem ncav cuag siab tshaj hv1700, thiab qhov tawv tawv tuaj yeem ncav cuag HRC58-62.
