Hauv kev xyaum, muaj cov ntaub ntawv pov thawj sib txawv rau kev tsim tshuab tshuab. Cov no suav nrog manganese steels, steels nrog cov qauv martensitic (xws li hauv qab no li martensitic steels), chrome steels thiab Hlau Matrix Composites (MMC, egceramic), uas muaj ntau yam steels tau ua ke nrog ib hom tshwj xeeb ntawm ceramic.
Feem ntau ib qho kev nce hauv cov hlau hnav tsis kam ( hardness ) nrog rau kev txo qis hauv qhov hnyav (kev cuam tshuam ntawm cov khoom.
Thiab cov ntaub ntawv no muaj kev sib txawv ntawm kev hnav tsis kam thiab tawv, cov ntaub ntawv hauv qab no yog qhov peb qhia.
Post lub sij hawm: Oct-12-2023