Ukuqiniswa kokuguqulwa kwepayipi le-alloy ephezulu

Phezului-alloy pipeukuqinisa i-deformation ukusetshenziswa kwezindlela zokuqinisa insimbi.Okwaziwa nangokuthi ukuqina noma ukuqina kwe-strain.Amandla ezinto ezibonakalayo ku-macro (noma yonke) ikhono lokumelana nokuguquguquka (noma ukucindezeleka kokugeleza).Ukuqina yikhono lezinto ezibonakalayo ukumelana nokuguqulwa kwendawo yepulasitiki (noma ngabe ubulukhuni, ubulukhuni be-Vickers, ubulukhuni be-Rockwell noma i-Brinell).Zombili zinobudlelwano obuhambelanayo obufanayo ezimweni eziningi.Amandla ezinto ezibonakalayo, kukhulu ukumelana nokuguquguquka kwepulasitiki, kukhuphuka inani lobulukhuni.Ngokuphambene, ukuphakama kokuqina kwempahla, impahla ingase ibe ngenxa yokwanda kwe-brittleness, amandla ayo awabonakali ngokugcwele kumanani anjalo wenkomba yamandla ayiphezulu.

Ukuze eside ngaphansi ukwelashwa ukushisa, kanye nokusetshenziswa izinto emazingeni okushisa kahle ngezansi izinga lokushisa recrystallization of the ingxubevange tube high-pressure steel ipayipi impahla, ngokuvamile sebenzisa abandayo (deformation ebandayo) kusho ukwenza kube ngokusebenzisa deformation ukuqinisa ukuthuthukisa amandla.Ngakho-ke, izinga lokushisa eliqinisa i-essence recrystallization lezinto ezisetshenziswayo ukuguquguquka okubandayo okulandelayo, ngezinga lokuguquguquka (ubunzima) liyakhuphuka, okuholela ekukhuleni okukhulu kokuhlukaniswa (amaphutha ekristalu), kukhuphuka ukuminyana kwe-dislocation ku-crystal, kukhulu izinga lokuthuthuka, ingcindezi yokugeleza iyanda.Ngemuva kokugeleza kwe-deformation ukucindezeleka kwamashubhu ensimbi akufanele kulingane ngaphambi kokugeleza kokucindezeleka kwe-deformation kuqinisa i-deformation kanye nokucindezeleka kokugeleza okukhulayo.Ukusetshenziswa kokuqinisa i-deformation ukuze kuzuzwe imikhiqizo yensimbi enamandla amakhulu, insimbi yensimbi enekhabhoni ephezulu edonsa ebandayo kanye ne-low-carbon low-alloy duplex steel duplex steel cold wire.

Ngokukhula kwezinga lokuguquguquka, amandla ezinto ezibonakalayo nokuqina kuya phezulu nangaphezulu, kepha i-ductility yayo kanye nokuqina kwayo kuvame ukwehla kuya phansi, kuhlakazeke kakhulu, okudinga ukuthatha izinyathelo eziqinile zokuthuthukisa isimo.Ingaphakathi elingeniswa ekuguqulweni kwesigaba se-martensitic ngesikhathi sesigaba sokupholisa sokuqina, ingqikithi yalo engokomzimba, liphinde libe elokuqiniswa kwe-deformation, kodwa kulokhu akuveli ekuguqukeni kwangaphandle, kodwa kusukela kunqubo yokuguqulwa kwe-martensitic ye-crystal high-density bit ngokwayo i-shear eyenziwe ngephutha. .


Isikhathi sokuthumela: Oct-15-2019