Siabcev alloyKev txhim kho deformation yog kev siv cov txheej txheem steel.Kuj tseem hu ua hardening lossis strain hardening.Lub zog ntawm cov khoom ntawm macro (los yog tag nrho) muaj peev xwm tiv taus deformation (los yog txaus siab).Hardness yog lub peev xwm ntawm cov khoom siv los tiv thaiv cov yas deformation hauv zos (txawm yog hardness, Vickers hardness, Rockwell hardness lossis Brinell).Ob leeg muaj kev sib raug zoo sib xws hauv ntau qhov xwm txheej.Lub zog ntawm cov khoom, qhov ntau dua cov yas deformation kuj, qhov hardness ntau dua.Piv txwv li, qhov siab dua qhov hardness ntawm cov khoom, cov khoom yuav yog vim muaj zog brittleness, nws lub zog tsis yog tag nrho reflected nyob rau hauv xws li lub zog Performance index tus nqi yog tsis siab.

Rau kev kho cua sov ntev dua, thiab kev siv cov ntaub ntawv nyob rau hauv qhov kub thiab txias hauv qab lub recrystallization kub ntawm alloy tube high-pressure steel yeeb nkab khoom, feem ntau siv txias (txias deformation) txhais tau tias ua rau nws los ntawm deformation ntxiv dag zog rau lub zog.Yog li, deformation ntxiv dag zog rau cov ntsiab lus recrystallization kub ntawm cov khoom hauv qab no txias deformation, nrog rau cov degree ntawm deformation (strain) yog nce, uas ua rau ib tug siab ceev ntawm dislocations (crystal defects), lub siab dua qhov dislocation ceev nyob rau hauv lub siv lead ua, qhov ntau dua. degree ntawm kev txhim kho, qhov siab dua qhov txaus siab.Tom qab deformation ntws kev ntxhov siab ntawm cov raj steel yuav tsum tsis txhob sib npaug ua ntej qhov kev ntxhov siab deformation ntxiv dag zog rau deformation ntxiv rau kev nce siab ntxiv.Kev siv deformation ntxiv dag zog kom ua tiav cov khoom muaj zog steel, yog cov khoom siv high-carbon steel txias-drawn steel hlau thiab qis-carbon low-alloy duplex steel txias-draw steel hlau.

Nrog rau qib ntawm deformation nce, lub zog ntawm cov khoom thiab hardness siab dua, tab sis nws cov ductility thiab toughness feem ntau tau qis dua thiab qis dua, ntau dua thiab nkig, uas yuav tsum tau siv cov kev ntsuas nruj los txhim kho qhov xwm txheej.Sab hauv induced nyob rau hauv martensitic theem transformation thaum lub sij hawm txias theem rau hardening, nws lub cev essence, nws kuj belongs rau deformation ntxiv dag zog rau, tab sis lub sij hawm no tsis yog los ntawm sab nraud deformation, tab sis los ntawm martensitic transformation txheej txheem ntawm crystal high-density me ntsis nws tus kheej shear generated los ntawm yuam kev. .