
Superalloys na tushen Cobalt rukuni ne na kayan ƙarfe masu ƙarfi waɗanda aka ƙera don kiyaye ƙarfin injin na musamman, kwanciyar hankali, da juriya na lalata a yanayin zafi mai tsananin zafi, galibi ya zarce waɗanda superalloys na tushen nickel suka fara rauni. Abu ne na ginshiƙi don abubuwan da ke da mahimmanci a cikin mafi yawan wurare masu buƙata, musamman a sararin samaniya, injin injin injin masana'antu, da kayan aikin likita.
Babban aikinsu ya samo asali ne daga ƙarfafan matrix na cobalt-chromium da babban ƙarar ƙarfi, barbashi na carbide mai jujjuyawa.
Ƙarfin Maɗaukaki na Musamman: Cobalt Alloys suna nuna maki mafi girma na narkewa da mafi kyawun zafin zafi da juriya fiye da nickel gami a yanayin zafi sama da 1000°C (1832°F). Wannan yana nufin suna tsayayya da laushi da lalacewa a ƙarƙashin damuwa a yanayin zafi kusa-narkewa.
Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwararren Ƙwaƙwalwa na Ƙaƙwalwa na Ƙaƙwalwa na Ƙarfafawa , yana ba da kyakkyawar juriya ga lalacewa, lalacewa mai laushi (galling), da damuwa. Wannan ya sa su dace don aikace-aikacen fuskantar lalacewa.
Kyakkyawan Lalacewa mai zafi & Juriya na Oxidation: Babban abun ciki na chromium (sau da yawa sama da 20%) yana samar da ma'auni mai karewa, ma'auni na chromium oxide (Cr₂O₃) wanda ke tsayayya da lalacewa a cikin oxidizing da sulfidizing yanayi.
Juriya na Gaji mai Girma: Za su iya jure yawan zagayowar dumama da sanyaya ba tare da fashewa ba, ƙayyadaddun mahimmanci ga abubuwan da aka haɗa kamar injin turbine.
Ayyukan cobalt superalloys an samo su ne daga maɓalli da yawa:
Ƙarfafa-Maganin Ƙarfafawa: Abubuwa kamar tungsten (W) da molybdenum (Mo) suna narke a cikin matrix cobalt, yana hana motsin karkacewa.
Hazowar Carbide: Samuwar manyan carbides (misali, Cr₇C₃, Cr₂₃C₆, WC, TaC) ko'ina cikin microstructure yana ba da babbar juriya ga rarrafe da lalacewa. Girman, nau'in, da rarraba waɗannan carbides suna da mahimmanci ga aiki.
Cobalt Allotropy: Cobalt yana jujjuya canjin lokaci akan dumama, kuma ana amfani da wannan sifa don haɓaka kaddarorin ta hanyar magani mai zafi da sarrafa injin thermo.
Superalloys na tushen Cobalt suna da mahimmanci a cikin aikace-aikacen da gazawar ba zaɓi bane.
Aerospace & Power Generation Turbines: Ana amfani da su don abubuwan da ke tsaye kamar:
Turbine Vanes & Nozzle Guide Vanes: Inda aka ci karo da mafi girman yanayin zafi da juriya mai rarrafe shine mafi mahimmanci.
Abubuwan Wear Masana'antu: Tushen don abubuwan haɗin gwiwar Stelite™, ana amfani da su don:
Wuraren Wuta & Gyara a cikin babban matsi, bawuloli masu zafi.
Hardfacing Wayoyi & Sanduna don suturta faɗuwar lalacewa akan kayan aiki da injina.
Pump Hands, Shafts, da Yankan Wukake.
Magungunan Magunguna: Ana amfani da su a cikin abubuwan da aka sanya na kasusuwa (musamman don abubuwan da ke ɗaukar ƙarfe-kan-karfe) saboda kyakkyawan yanayin su, juriya, da juriya na lalata a jikin mutum.
Tebur mai zuwa yana taƙaita mahimman fasalulluka don dubawa mai sauri:
| Siffar | Bayani | Amfani |
| Base Element | Cobalt (Co), tare da babban abun ciki na Chromium (Cr). | Yana ba da mahimmancin matrix don babban zafin aiki da juriya na lalata. |
| Mabuɗin Ƙarfafawa | Tungsten (W), Molybdenum (Mo), da Carbon (C) don samuwar carbide. | Yana ba da ƙarfin zafi mai tsayi, juriya mai raɗaɗi, da juriya. |
| Yanayin Aiki | Maɗaukaki, yana da kyau sama da 1000°C (1832°F). | Yana ba da damar ingantattun injiniyoyi da aiki a cikin matsanancin yanayi. |
| Abubuwan Maɓalli | Taurin Zafi, Juriya mai Raɗaɗi, Sawa & Juriya na Lalacewa. | Haɗuwa ta musamman don mafi tsananin yanayin sabis. |
| Siffofin gama gari | Abubuwan da aka gyara na simintin gyare-gyare, mashaya da faranti, foda don HIP, gami da taurin fuska. | Samfuran masana'anta don duka hadaddun sassa na kusa-net-tsari da suturar kariya. |
| Masana'antu na Farko | Jirgin Sama, Ƙarfin Wutar Lantarki, Likita, Chemical & Petrochemical. | Kayan zaɓin inda matsanancin zafin jiki da lalacewa ke haɗuwa. |
A takaice, Superalloys na tushen Cobalt abubuwa ne masu niche amma mahimman abubuwa waɗanda ke tura iyakokin injiniyan zafin jiki. Duk da yake sau da yawa sun fi tsada da yawa fiye da nickel superalloys, aikinsu da bai yi kama da su ba a takamaiman wurare - musamman ƙarfin zafin jiki, gajiyar zafi, da juriya - suna tabbatar da muhimmiyar rawarsu a cikin fasahar ci gaba.