Hardness: A cov khoom muaj peev xwm tiv taus kev sib txhuam, qhov tseem ceeb ntawm kev puas tsuaj, yog lub npe hu ua hardness. … Toughness: Cov khoom zoo npaum li cas tuaj yeem tiv taus tawg thaum siv quab yuam. Toughness xav tau lub zog thiab ductility, uas tso cai rau cov khoom kom deform ua ntej fracturing.
YPuas toughness thiab hardness tib yam?
Toughness is a bulk property whereas hardness is a deg khoom. Hardness muaj feem xyuam rau khawb, puas thiab yaig thaum lub zog yog cuam tshuam nrog tawg, compression zog los yog elongation lub zog. Cov khoom tawv tawv tuaj yeem nyuaj thiab tab sis nws tsis muaj tseeb rau lwm txoj hauv kev.
Qhov txawv ntawm lub zog hardness thiab toughness yog dab tsi?
Qhov txawv ntawm hardness, toughness, thiab lub zog yog piav qhia saum toj no, tab sis hauv luv luv, peb tuaj yeem hais sai sai; hardness yog lub peev xwm ntawm cov khoom los tiv thaiv kev sib txhuam, thaum Toughness yog lub peev xwm los ntsuas tus nqi ntawm quab yuam cov khoom yuav nqus tau yam tsis muaj fractioning.
piv txwv ntawm qhov tawv yog dab tsi?
Toughness muaj feem cuam tshuam rau thaj tsam hauv qab kev ntxhov siab-txoj kab nkhaus. Txhawm rau ua kom tawv, cov khoom siv yuav tsum muaj zog thiab du. Piv txwv li, cov ntaub ntawv nkig (xws li ceramics)uas muaj zog tab sis muaj qhov txwv tsis pub muaj qhov tsis zoo; conversely, cov ntaub ntawv ductile heev nrog tsawg zog kuj tsis tawv.
Puas yog steel tawv los yog tawv?
Hlau thiab nws cov alloys Hlau yog tawv alloy ntawm hlau thiab carbon nrog cov khoom sib xyaw ntawm lwm cov ntsiab lus, suav nrog silicon, manganese, vanadium, niobium, thiab lwm yam. Ntau yam txheej txheem alloying tuaj yeem pab tsim cov hlau nrog cov khoom sib txawv kiag li. Yog li, cov hlau carbon siab yog hlau alloy nrog cov ntsiab lus siab carbon.
