Ukomelezwa kombhobho we-alloy we-high-pressure deformation usebenzisa indlela yokuguqulwa kokuqiniswa kwensimbi.Ikwabizwa ngokuba kukuqina koxinzelelo okanye ukuqina komsebenzi.Amandla ezinto eziphathekayo kwi-macro (okanye yonke) ukukwazi ukuxhathisa i-deformation (okanye uxinzelelo lokuhamba).Ukuqina kukukwazi kwemathiriyeli ukuxhathisa i-deformation yeplastiki yendawo (nokuba yi-micro-hardness, Vickers hardness, Rockwell hardness okanye Brinell hardness).Bobabini banobudlelwane obuhambelanayo kwiimeko ezininzi.Amandla ezinto eziphathekayo, ukuxhathisa okukhulu kwi-deformation yeplastiki, ukuphakama kwexabiso lobunzima.Ngokwahlukileyo, ukuphakama kobunzima bezinto eziphathekayo, izinto eziphathekayo zinokuba ngenxa yokunyuka kwe-brittleness, amandla ayo awabonakali ngokupheleleyo kwixabiso lesalathisi samandla alikho phezulu.
Kuba ixesha elide zixhomekeke kunyango ubushushu, kunye nokusetyenziswa izinto kumaqondo obushushu kakuhle ngezantsi iqondo lobushushu recrystallization eliphezulu-uxinzelelo ingxubevange umbhobho umbhobho impahla impahla (ezifana low-carbon low-alloy steel), ngokufuthi sebenzisa ebandayo (deformation ebandayo) ukuze ukuba ngendlela deformation ukomeleza ukuphucula amandla.Ke, i-deformation yokuqinisa i-essence ikwiqondo lobushushu le-recrystallization yezinto kwi-deformation elandelayo ebandayo, kunye ne-degree of deformation (strain) yanda, okukhokelela ekuxininiseni okuphezulu kwe-dislocations (iziphene zekristale), ukuphakama koxinzelelo lwe-dislocation kwi-crystal. , Ubukhulu beqondo lophuculo, oko kukuthi uxinzelelo oluphezulu lokuhamba.Emva koxinzelelo lokuhamba kwe-deformation yentsimbi akufanele ilingane phambi koxinzelelo lokuhamba kwe-deformation kunye ne-deformation eyongezelelweyo yokuqinisa uxinzelelo lokuhamba.Ukusetyenziswa okomeleza ukomeleza ukuphumeza iimveliso zentsimbi ezinamandla aphezulu, okuqhelekileyo yintsimbi yentsimbi enekhabhoni ephezulu ebandayo etsalwa yintsimbi kunye nekhabhoni ephantsi-ingxubevange yentsimbi ephindwe kabini ngocingo lwentsimbi olubandayo.
Ngokunyuka kweqondo le-deformation, amandla ezinto eziphathekayo kunye nobunzima obuphezulu nangaphezulu, kodwa i-ductility yayo kunye nokuqina kwayo ihlala iphantsi kwaye iphantsi, i-brittle ngakumbi nangakumbi, efuna ubunzima bokuthatha amanyathelo afanelekileyo ukuphucula imeko.I-Internal induced kwisigaba se-martensitic senguqu yesigaba sokupholisa ukuqina, i-essence yayo yomzimba, ikwayeyokomeleza i-deformation, kodwa ngeli xesha kungekhona kwi-deformation yangaphandle, kodwa inkqubo yokuguqulwa kwe-martensitic ukusuka kwi-crystal High-density indawo ngokwayo i-chear eyenziwe ngempazamo.
Ixesha lokuposa: Jul-29-2023