Izingxenye zepulasitiki ezikwazi ukumelana nokushisa, ukumelana nokuguga nezimelana nokugqwala ezimotweni ezisindayo noma emishinini yezimboni zibizwa ngokuthi amapulasitiki obunjiniyela abakhulu. Ukusebenza kwabo okunamandla kakhulu kuvela enqubweni yokukhiqiza ehluke ngokuphelele. Iqembu labacwaningi eJapane laklama indlela entsha yokuthuthukisa ukumelana nokuguga nokumelana nokugqwala kwamapulasitiki obunjiniyela abakhulu bomshini, ngaleyo ndlela kugwenywe ukugqwala kwemvelo okubangelwa ngesikhathi sokukhiqiza.

Umbhali wephepha, uKenta Yamanaka, UProfesa Ohlangene we-Deformation Processing, eNyuvesi yaseTohoku, uthe: "Imakethe yomhlaba wonke yepulasitiki yobunjiniyela obukhulu ikhulile eminyakeni yamuva ngoba inokumelana nokushisa okuphezulu kakhulu, amandla amahle emishini, namakhemikhali amahle kakhulu futhi aphezulu kakhulu. ukumelana nendawo yokushisa. Ukuncibilika, kodwa ohlelweni lokukhiqiza, isikulufu esiphindaphindayo esisetshenziswayo sokukhiqiza ngokuvamile silahlekelwa ukuguga, ngenxa yokuthi impahla eluhlaza ewuketshezi oluyingxenye ngokuvamile iqukethe inani elikhulu lefayibha yengilazi njengento eqinisayo."

Amapulasitiki wobunjiniyela abakhulu nawo abola abe yigesi ye-sulfide, okuthi ngaphezu kokuguga nokuklebhuka komzimba, iphinde iholele endaweni egqwala kakhulu. Izikulufu emishinini yokukhiqiza azikwazi ukumelana nale ndawo isikhathi eside.

Ingxubevange yensimbi enesivinini esiphezulu inqoba ukugqwala

Ukuze kulungiswe le nkinga, u-Yamanaka nabacwaningi bacwaninga ingxube yensimbi ebizwa nge-high-speed steel, okwamanje esetshenziswa kakhulu kumathuluzi. Ngokusho kuka-Yamanaka, le nsimbi inezakhiwo ezinhle kakhulu zemishini ekamelweni lokushisa nokushisa okuphezulu, kodwa iyakwazi ukugqwala.

Ngakho-ke abacwaningi basebenzisa ingxubevange esekelwe ensimbi enesivinini futhi bayiphatha ngethusi.

"Ukumelana nokugqwala kanye nokumelana nokugqwala kwensimbi kuvame ukuba nobudlelwano bokuhwebelana," kusho u-Yamanaka. "Kulolu cwaningo, safakazela ukuthi ukwengeza inani lethusi ensimbi yokuqina okuphezulu kungathuthukisa kakhulu ukumelana nokugqwala kwe-alloy, ngaleyo ndlela kufinyelele inhlanganisela ephelele yokumelana nokugqoka nokumelana nokugqwala."

Ngemva kokuhlaziya ingxubevange ngokusebenzisa izithombe nezifundo zokuhlola, abacwaningi bathola ukuthi bathuthukise ngempumelelo insimbi engagugi kakhulu futhi imelana nokugqwala. Okulandelayo, bahlela ukuqhubeka nokufunda izakhiwo ze-alloy ukuze zisetshenziswe kwezinye izinkambu.

Xhumanisa nale ndatshana: Ingxubevange entsha ezonqoba ubunzima bokukhiqiza amapulasitiki wobunjiniyela abakhulu

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