Ukuhlaziywa kwemishini yokuzijabulisa kwe-crack kusizakala ukwazisa isizathu esibalulekile sokuqhekeka, okuyinto eyisisekelo senhloso yokuhlonza. Ingabonakala kusuka ekuhlaziyweni kwamacala amaningi okuqhekeka kanye nokuhlolwa okuphindaphindiwe okuthi indlela kanye nezimpawu zokwenziwa kwensimbi ye-alloy akunangqondo, okunokulimala okusemqoka kokuqhekeka.

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Kuyo yonke inqubo yokuguqulwa, ukuhlukaniswa kokuzivocavoca endizeni eshelelayo, futhi lapho ihlangana nokuvinjwa komgwaqo, iyobumba futhi ibange ukucindezelwa okwenele kokuphazamiseka, okuhlanganiswe nomkhuba wentuthuko wemifantu yezomnotho macro. Le miphumela ebalulekile ekushiseni kwe-defformation iphansi (ephansi kunomshini wokushisa wokuqina), noma izinga lokukhubazeka likhulu kakhulu, izinga lokukhubazeka lishesha kakhulu. Lolu hlobo lokuqhekeka luvame ukwengenxa ye-trancergranur noma ngokwethusayo kanye nokuhlanganiswa kwe-concranular, kepha ngoba ama-molecule aphezulu anezinga lokukhuphuka kwangaphandle, asheshise ukulungiswa kwe-micro, ukusheshisa isimo esisheshayo, akunakuthuthukisa umkhuba wokuqhekeka kwe-macroeconomic.

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Ukuze izinto zokwakha nezindlela ze-asymmetrical kanye nezakhiwo, ukuqhekeka ngokuvamile kwenzeka emingceleni yokusanhlamvu namanye amakhasi esigaba. Lokhu kungenxa yokuthi i-deformation evuzayo iyenziwa ngokuvamile ukuzungeza amazinga okushisa alinganayo ezinto zensimbi. Ukuguqulwa komngcele wokusanhlamvu kukhulu kakhulu, ngakho-ke umngcele wokusanhlamvu wezinto zensimbi ububi bemikhakha ye-metallurgical, isigaba sesibili nezinto ezingezona zensimbi zigxiliwe endaweni. Emazingeni okushisa aphezulu, amakhemikhali aphansi we-solubity point emingceleni yokusanhlamvu yezinto ezithile ezingavuthiwe akhiqiza ukuncibilika, okuqinile

Ukunciphisa ukuphuma kwepulasitiki kwezinto eziluhlaza; Ekushiseni okuphezulu, ezinye izinto (isibabule, ithusi, njll.) Ezintweni ezizungezile zenziwa emngceleni wokusanhlamvu kuya ngaphakathi nangaphandle kwezinto zensimbi, okuholela ekubukekeni kwesigaba sesibili kanye nokuncipha komngcele wokusanhlamvu. Kokunye, izinto ezijwayelekile zensimbi zinobudlelwano obumpofu ngezigaba ezithile ngenxa yokwehluka kwezindawo ezingokomzimba nangamakhemikhali zezigaba ezimbili.

Izinto ezisetshenziswayo ezivame ukusetshenziswa ejele ngokuvamile azivumelani ngokulinganayo. Ngakho-ke, ukuqhekeka kothethelelwa kwamahhala kwenzeka futhi kuthuthukiswa emngceleni wokusanhlamvu noma umngcele wesigaba ngesikhathi sokushisa okuphezulu.