Umahluko wokwakheka kwezinto
I-alloys esekelwe kwi-cobalt zisebenzisa i-cobalt (Co), i-chromium (i-Cr), i-molybdenum (i-Mo), njl njl njengezona zinto ziphambili, apho i-cobalt ichaza umlinganiselo ophezulu, kunye nenani elithile lesinyithi (Fe), i-carbon (C) kunye nezinye izinto zongezwa; i-nickel-based I-alloy isebenzisa i-nickel (Ni) njengeyona nto iphambili, kwaye yongeza i-chromium (Cr), i-molybdenum (Mo), ubhedu (Cu), i-titanium (Ti), i-niobium (Nb) kunye nezinye izinto.
Umahluko wokuqhubekeka
I-alloys esekwe kwi-cobalt inomsebenzi olungileyo wokuqina kunye neempawu zokuthambisa i-annealing, kwaye kulula ukusetyenzwa ngayo kwiimilo ezahlukeneyo. Zifanelekile kumacandelo omatshini usebenzisa i-cobalt-based alloys. I-alloys esekwe kwi-nickel ine-processability efanelekileyo kwaye kulula ukuyikha, i-extrusion kunye ne-rotor yokwenza i-processing, kwaye ifanelekile kumacandelo omatshini. Uphuhliso kunye nokuphuculwa koomatshini bamandla besantya esiphezulu besebenzisa i-alloys esekwe kwi-nickel.
1.Unyango lobushushu: Zombini ii-alloys ezinobushushu obuphezulu zifuna unyango lobushushu. Bobabini bamkela inkqubo yonyango lobushushu lonyango lwesisombululo esiluqilima + unyango lokuguga. Ubunzima benkqubo yokunyanga ukushisa kuyafana.
2.Ukuqina: Zombini ii-alloys ezinobushushu obuphezulu zine-weldability elungileyo. Ngexesha le-brush seal welding, ubushushu kulula ukuqokelela kwaye kubangele ukuguqulwa. Kunconywa ukusebenzisa izinto ezisekelwe kwi-cobalt, ezine-conductivity ephezulu ye-thermal, i-conductivity enamandla ye-thermal, i-coefficient encinci yokwandisa, kunye ne-deformation encinci. , amandla e-welding fusion angcono.
3.Ukuguqula inkqubo: Ukusetyenzwa kokujika okwanelisayo kunokwenziwa.
Zombini ii-alloys ezinobushushu obuphezulu zinokuqhubekeka kakuhle.
Ukwahluka kwentsebenzo
1.Ukumelana nokuMdla:
I-alloys esekelwe kwi-Cobalt inokumelana nokugqwesa okugqwesileyo, ukumelana nokugqwala kunye neempawu zeqondo lokushisa eliphezulu, kwaye inokugcina ukusebenza okuzinzileyo kwiindawo ezinqabileyo ezifana ne-asidi eqinile, i-alkali eqinile, ubushushu obuphezulu kunye noxinzelelo oluphezulu, kwaye ifanelekile kwiindawo zokuvelisa ezifuna ukujamelana nemithwalo ephezulu kunye neendawo eziphakamileyo;
I-alloys esekelwe kwi-nickel inokumelana nokugqwala okulungileyo kwaye inokugcina uzinzo kunye nokunyaniseka kwiindidi zeendaba ezitshabalalisayo. Kananjalo baneempawu ezibalaseleyo zobushushu obuphezulu kwaye banokugcina amandla aphezulu kunye nokuqina kwiindawo ezinobushushu obuphezulu. Kodwa ayifanelekanga kwimithombo yeendaba eyonakalisayo eneasidi.
2.Uzinzo lweThermal: I-alloys esekwe kwi-cobalt ineempawu ezingcono zobushushu obuphezulu kune-nickel-based alloys kwaye ingasetyenziswa kumaqondo obushushu angaphezu kwe-1200 ° C ixesha elide, ngelixa i-alloys esekwe kwi-nickel idla ngokusetyenziswa kuphela malunga ne-1000 ° C. I-alloys esekelwe kwi-Cobalt ineendawo eziphezulu zokunyibilika kunye ne-thermal conductivity, ukunyuka kwe-thermal encinci emva kokufudumeza, kwaye ibe neenzuzo ekuzinzeni kwe-thermal; I-alloys esekelwe kwi-nickel inokuchasana okungcono kwi-oxidation kunye ne-corrosion, kodwa kwiindawo eziphezulu zokushisa, i-cobalt Isiseko se-alloy sinokuchasana kwe-oxidation ephezulu yokushisa kunye nokushisa okuphezulu kwe-corrosion.
3.Amandla omatshini: I-alloys esekwe kwi-Cobalt inamandla abalaseleyo obushushu obuphezulu kunye nokumelana nokudinwa kwe-thermal, ngelixa i-alloys esekwe kwi-nickel ine-ductility egqwesileyo kunye nokuqhubekeka, kodwa amandla abo obushushu obuphezulu kunye nokumelana nokudinwa kwe-thermal kungaphantsi kancinci kwi-cobalt-based alloys. . Kwiqondo lokushisa kwegumbi, amandla e-cobalt-based alloys aphantsi kancinci, kodwa i-elongation inkulu; I-alloys esekwe kwi-nickel inamandla aphezulu, kodwa i-brittle ngakumbi, kwaye kufuneka isetyenziswe ngononophelo kwiindawo ezinempembelelo. Kwiqondo lokushisa eliphezulu, xa ubushushu bungama-650 ° C, ii-alloys ezisekelwe kwi-nickel zinamandla aphezulu, kodwa zibuye zibe brittle, kwaye zivame ukuphuka xa zisetyenziswe kwiimeko zempembelelo. Xa izinga lokushisa liphakama ukuya kwi-900 ° C, i-nickel-based superalloy ayinakusetyenziswa, ngelixa i-diamond-based superalloy isenamandla athile.
4.Ukuqina koomatshini: Into ebizwa ngokuba yi-stiffness yikhono lezinto eziphathekayo zokumelana ne-deformation. Ukuqina kwee-alloys ezisekelwe kwi-nickel kuphantsi kune-cobalt-based alloys kuwo onke amaqondo okushisa.
Uisilumko
Ii-alloys ezisekelwe kwi-Cobalt zihlala zisetyenziselwa ukuvelisa iinxalenye ezahlukeneyo kunye namacandelo phantsi kweemeko zokungagugi, ukugqwala, ubushushu obuphezulu kunye neemeko zokusebenza ezichasene nefuthe; I-alloys esekelwe kwi-nickel isetyenziswa ngokubanzi kwi-aviation, i-aerospace, amandla, ulwandle, ukukhuselwa kwendalo kunye nezinye iindawo, ngakumbi Ukuveliswa kwamacandelo abalulekileyo afana nee-turbine blades kunye namagumbi okutsha kwiinjini ze-aero.
