Kusiyanasiyana kwapang'onopang'ono
Ma alloys opangidwa ndi cobalt amagwiritsa ntchito cobalt (Co), chromium (Cr), molybdenum (Mo), etc. monga zinthu zazikulu, zomwe cobalt imakhala ndi gawo lalikulu, komanso chitsulo (Fe), carbon (C) ndi zinthu zina zimawonjezeredwa; nickel alloy amagwiritsa ntchito faifi (Ni) monga chinthu chachikulu, komanso amawonjezera chromium (Cr), molybdenum (Mo), mkuwa (Cu), titaniyamu (Ti), niobium (Nb) ndi zinthu zina.
Kusiyana kwa processor
Ma aloyi opangidwa ndi cobalt ali ndi ntchito yabwino yowumitsa komanso kufewetsa, ndipo ndi yosavuta kusinthidwa kukhala mawonekedwe osiyanasiyana. Ndioyenera kupangira magawo pogwiritsa ntchito ma aloyi opangidwa ndi cobalt. Ma aloyi opangidwa ndi nickel ali ndi kuthekera kwabwino ndipo ndi osavuta kupanga, kutulutsa komanso kupanga ma rotor, ndipo ndi oyenera kupanga zida. Kupititsa patsogolo ndi kukonza makina amagetsi othamanga kwambiri pogwiritsa ntchito ma alloys opangidwa ndi faifi tambala.
1. Chithandizo cha kutentha: Ma aloyi onse otentha kwambiri amafunikira chithandizo cha kutentha. Onsewa amatenga njira yochizira kutentha yamankhwala olimba + mankhwala okalamba. Kuvuta kwa njira yochizira kutentha kumakhala kofanana.
2. Weldability: Ma aloyi onse otentha kwambiri amakhala ndi weldability wabwino. Panthawi yowotcherera chisindikizo cha burashi, kutentha kumakhala kosavuta kudziunjikira ndikuyambitsa mapindikidwe. Ndibwino kuti mugwiritse ntchito zipangizo zochokera ku cobalt, zomwe zimakhala ndi matenthedwe apamwamba kwambiri, matenthedwe amphamvu otentha, kuwonjezereka kwazing'ono, ndi kusinthika kochepa. , mphamvu ya kuwotcherera fusion ndi bwino.
3.Kutembenuza kusintha: Kutembenuza kokwanira kungathe kuchitidwa.
Ma alloys onse otentha kwambiri amakhala ndi processability wabwino.
Kusiyana kwa machitidwe
1. Kulimbana ndi corrosion:
Ma alloys okhala ndi Cobalt ali ndi kukana kwamphamvu kwambiri, kukana kwa dzimbiri komanso kutentha kwambiri, ndipo amatha kukhalabe okhazikika m'malo ovuta kwambiri monga asidi amphamvu, alkali wamphamvu, kutentha kwambiri komanso kuthamanga kwambiri, ndipo ndi oyenera kupanga zida zomwe zimafunikira kupirira katundu wambiri komanso malo owopsa;
Ma aloyi opangidwa ndi nickel ali ndi kukana kwa dzimbiri bwino ndipo amatha kukhala okhazikika komanso okhulupilika pama media osiyanasiyana owononga. Amakhalanso ndi zinthu zabwino kwambiri zotentha kwambiri ndipo amatha kukhalabe amphamvu komanso olimba m'malo otentha kwambiri. Koma si oyenera kwambiri zowononga acidified TV.
2. Kukhazikika kwa kutentha: Ma aloyi opangidwa ndi cobalt amakhala ndi kutentha kwambiri kuposa ma aloyi opangidwa ndi faifi ndipo amatha kugwiritsidwa ntchito pakatentha kwambiri kuposa 1200 ° C kwa nthawi yayitali, pomwe ma aloyi opangidwa ndi faifi amatha kugwiritsidwa ntchito pafupifupi 1000 ° C. Ma alloys opangidwa ndi cobalt ali ndi malo osungunuka kwambiri komanso matenthedwe amafuta, kukulitsa kwakung'ono kwamafuta pambuyo pa kutentha, ndipo amakhala ndi zabwino pakukhazikika kwamafuta; Ma aloyi opangidwa ndi nickel amalimbana bwino ndi okosijeni ndi dzimbiri, koma m'malo otentha kwambiri, cobalt The base alloy amakhala ndi kukana kwa okosijeni kwapamwamba kwambiri komanso kukana kwa dzimbiri.
3. Mphamvu zamakina: Ma aloyi opangidwa ndi cobalt ali ndi mphamvu zabwino kwambiri zotentha komanso kukana kutopa kwamafuta, pomwe ma aloyi opangidwa ndi faifi amakhala ndi ductility ndi processability, koma mphamvu zawo zotentha kwambiri komanso kukana kutopa kwamafuta ndizotsika pang'ono poyerekeza ndi ma aloyi opangidwa ndi cobalt. . Pa kutentha, mphamvu ya cobalt-based alloys ndi yotsika pang'ono, koma elongation ndi yaikulu; Ma aloyi opangidwa ndi nickel ali ndi mphamvu zambiri, koma ndi olimba kwambiri, ndipo ayenera kugwiritsidwa ntchito mosamala m'malo omwe ali ndi mphamvu. Pa kutentha kwambiri, kutentha kukakhala 650 ° C, ma alloys opangidwa ndi nickel amakhala ndi mphamvu zambiri, koma amakhala olimba kwambiri, ndipo amatha kusweka akagwiritsidwa ntchito pazovuta. Kutentha kukakwera kufika pa 900 ° C, superalloy ya nickel-based superalloy singagwiritsidwenso ntchito, pamene superalloy yochokera ku diamondi imakhalabe ndi mphamvu zinazake.
4.Kuuma kwamakina: Zomwe zimatchedwa kuuma ndi kuthekera kwazinthu kukana mapindikidwe. Kuuma kwa ma alloys opangidwa ndi nickel ndikotsika kuposa komwe kumapangidwa ndi cobalt mumitundu yonse ya kutentha.
Unzeru
Ma alloys opangidwa ndi cobalt nthawi zambiri amagwiritsidwa ntchito popanga magawo ndi zigawo zosiyanasiyana pansi pazikhalidwe zogwira ntchito, zosavala, zosawonongeka, zotentha kwambiri komanso zosagwira ntchito; Ma alloys opangidwa ndi nickel amagwiritsidwa ntchito kwambiri muzamlengalenga, zamlengalenga, zamphamvu, zam'madzi, zoteteza zachilengedwe ndi zina, makamaka Kupanga zinthu zofunika kwambiri monga masamba opangira turbine ndi zipinda zoyaka moto mu injini za aero.
