Ingxubevange esekwe ku-iron/ingxubevange esekelwe ku-nickel/ingxubevange esekelwe ku-nickel/ipuleti le-superalloy elimelana nokubola

Ama-superalloy asuselwa ku-nickel ayikilasi lemvula eqinisiwe ama-alloys enza kahle ezindaweni ezinezinga lokushisa eliphezulu. Izakhiwo ezinhle kakhulu zokushisa okuphezulu kwe-nickel-based superalloys ziye zaholela ekusetshenzisweni kwalesi sigaba sama-alloys ezinhlelweni eziningi ze-aerospace.

I-iron-based superalloy iwuhlobo lwe-superalloy. Ibonakala ngokungeza ezinye izakhi ngesisekelo sensimbi ye-alloying. Okuhambisana nama-superalloy asekelwe ku-iron ama-superalloy asekelwe ku-nickel nama-superalloy asekelwe ku-cobalt.

Ama-superalloys asekelwe ku-Cobalt yizinto ezisetshenziswa emazingeni okushisa aphezulu nasezindaweni ezidlulele ezinamandla amakhulu okushisa aphezulu, ukumelana nokugqwala nokumelana nokugqoka. Ama-superalloys asekelwe ku-cobalt akhiwa ikakhulukazi izakhi ezifana ne-cobalt, i-chromium, i-tungsten, i-nickel ne-aluminium.

Ama-super alloys amelana nokugqwala ahlinzeka ngokwanda kwamandla emishini, ukumelana nokubola okushisayo, nokumelana nokugqwala uma kuqhathaniswa nama-alloys endabuko, adinga ukunakekelwa okuncane kanye nezimo ezingcono ezimelana nezinzima. Imizamo iyaqhubeka yokwenza ama-super alloys amasha amelana nokugqwala njengama-super alloys asuselwa ku-aluminium, nokudala izindlela ezintsha zokukhiqiza ezifana ne-radiolysis esebenzisa i-nano-particle synthesis ukuze kwakheke i-polycrystalline.

Ukumelana nokushisa okuphezulu nokumelana nokugqwala kwe-superalloy ikakhulukazi kuncike ekubunjweni kwamakhemikhali kanye nesakhiwo. Uma sithatha njengesibonelo i-Inconel718 i-nickel-based superalloy ekhubazekile njengesibonelo, ingxubevange iqukethe isigaba se-matrix esingu-γ, isigaba esingu-δ, i-carbide, nesigaba esiqinisiwe esingu-γ' kanye no-γ ". Izakhi zamakhemikhali kanye nesakhiwo se-matrix se-Inconel718 alloy sibonisa izakhiwo zayo eziqinile zemishini, amandla angu-4 angcono kanye nensimbi yensimbi izikhathi ezimbalwa ezingcono kunezinsimbi ezingama-45 Isakhiwo se-lattice esizinzile kanye nenani elikhulu lezici eziqinisayo zifaka isandla ezintweni zayo ezinhle kakhulu zemishini.

Ngenxa yemvelo eyinkimbinkimbi futhi enokhahlo yokusebenza kwama-superalloys, ubuqotho bomshini womshini budlala indima ebaluleke kakhulu ekusebenzeni kwayo. Kodwa-ke, i-superalloy iyinto evamile okunzima ukuyicubungula, ubulukhuni bayo bento yokuqinisa i-micro bukhulu, izinga lokuqina komsebenzi libucayi, futhi linokucindezeleka okuphezulu kwe-shear kanye nokushisa okuphansi kokushisa, amandla okusika kanye nokushisa okusika endaweni yokusika, kuvame ukuvela ekucubunguleni izinga eliphansi eliphezulu, ukulimala kwamathuluzi kubi kakhulu nezinye izinkinga. Ngaphansi kwezimo ezijwayelekile zokusika, ungqimba olungaphezulu lwe-superalloy luzoveza izinkinga ezinkulu kakhulu njengongqimba oluqinile, ukucindezeleka okusalayo, ungqimba olumhlophe, ungqimba olumnyama kanye nongqimba lwe-grain deformation.

Ama-Superalloy ama-alloys e-nickel ukumelana nokushisa, i-iron-nickel, ne-cobalt angasetshenziswa emazingeni okushisa aphezulu, ngokuvamile> ku-70% wamazinga awo okushisa ancibilikayo. Angasetshenziswa emazingeni okushisa angaphezu kuka-1050°C nohambo olufinyelela ku-1200°C. Lesi sici esimelana nezinga lokushisa siyenza ibe ikhandidethi elifanelekayo lokungena esikhundleni se-Tungsten Carbide ezinhlelweni ze-Pick Up.

Uhlobo olusetshenziswa kakhulu lwe-Superalloy yi-nickel-based material equkethe ukugcwala okuphezulu kwe-chromium, insimbi, i-titanium, i-cobalt nezinye izakhi ze-alloying. Njengakwamanye amaqembu wensimbi, izakhiwo zama-superalloy zingalungiswa ngemithi yokwelapha ehlukahlukene yokushisa kanye/noma i-annealing kanye nokucisha. Uma kuqhathaniswa namanye amaqembu wezinto ezibonakalayo, ama-Superalloy anezinga eliphezulu lokushisa eliphezulu lesevisi namanani aphezulu obulukhuni. Amandla e-Superalloys akwenza kube enye indlela engcono kakhulu ye-Carbide ekusebenziseni amandla ebhondi ephezulu (>1kg).