Uhlalutyo lwendlela yokukhuthaza ukuqhekeka kuluncedo ekulawuleni esona sizathu sibalulekileyo sokuqhekeka, esisisiseko senjongo yokuchongwa kweecrack.Inokujongwa kwizinto ezininzi zokuhlalutya i-crack case kunye novavanyo oluphindaphindiweyo ukuba indlela kunye neempawu ze-alloy forgings zensimbi azikho i-symmetrical, enobungozi obuphambili bokuqhekeka.

1. Imathiriyeli ekrwada ene-symmetrical mechanism kunye neempawu.

Kuyo yonke inkqubo ye-deformation, i-dislocation exercise ecaleni kwe-sliding plane, kwaye xa idibana nomqobo wendlela, iya kufumba kwaye ibangele uxinzelelo olwaneleyo lomhlaba ukuze kubangele iintanda, okanye i-cavitation kunye ne-micro-cracks ngenxa yentsebenziswano ye-dislocation, edibeneyo indlela yophuhliso lweentanda kuqoqosho olukhulu.Esi siphumo siphambili kwiqondo lokushisa lokuguqulwa liphantsi (liphantsi kunomsebenzi onzima wokushisa), okanye inqanaba le-deformation likhulu kakhulu, izinga lokuguqulwa likhawuleza kakhulu.Olu hlobo lokuqhekeka luhlala luxubene ne-transgranular okanye i-transgranular kunye ne-intergranular exutywe, kodwa ngenxa yokuba iimolekyuli zobushushu obuphezulu zinezinga eliphezulu lokusasazwa kwangaphandle, zikhuthaza ukunyuka kwe-dislocation, ukukhawulezisa ukulungiswa kwe-forging kunye nomsebenzi wokuqina, ukuze inkqubo yokuguqulwa sele ibangele i-micro. i-crack kulula ukuyilungisa, kwiqondo lokushisa lokuguqulwa lifanelekileyo, izinga lokuguqulwa liyimeko ecothayo, ayikwazi ukuphuhlisa umkhwa wokuqhekeka kwezoqoqosho.

2. Imathiriyeli ekrwada enendlela engalinganiyo kunye neempawu.

Kwizixhobo ezineendlela kunye neempawu ze-asymmetrical, ukuqhekeka kwenzeka ngokubanzi kwimida yengqolowa kunye namaphepha athile esigaba.Oku kungenxa yokuba i-deformation yokubunjwa iqhutyelwa ngokubanzi malunga nobushushu obulinganayo bezinto zetsimbi.I-deformation yomda wengqolowa inkulu kakhulu, ngoko ke umda weenkozo wezinto zetsimbi yinto engafanelekanga kwi-industry metallurgical, isigaba sesibini kunye nezinto ezingekho zetsimbi zigxininiswe kwindawo.Kubushushu obuphezulu, imichiza esezantsi yokunyibilika kwimida yengqolowa yezinye izinto ezikrwada ivelisa ukunyibilika, okungqongqo.

Ukunciphisa i-deformation yeplastiki yezinto eziluhlaza;Kwiqondo lokushisa eliphezulu, ezinye izinto (isulfure, ubhedu, njl.njl.) kwizinto ezijikelezileyo zisasazwa ecaleni komda wengqolowa ukuya ngaphakathi nangaphandle kwezinto zetsimbi, okukhokelela ekubonakaleni okungaqhelekanga kwesigaba sesibini kunye nobuthathaka bomda weenkozo. .Kwesinye, izixhobo zentsimbi eziqhelekileyo zinezibophelelo ezingentle kunye nezigaba ezithile ngenxa yomahluko weempawu zomzimba kunye neekhemikhali zezi zigaba zibini.

Iimathiriyeli ekrwada ezidla ngokusetyenziswa ekubumbeni azikho macala onke.Ke ngoko, ukuqhekeka kwe-forging yasimahla kwenzeka kwaye kuphuhliseka ecaleni komda weenkozo okanye umda wesigaba ngexesha lobushushu obuphezulu bokwenza ukuguqulwa.