Emva kwesisombululo sonyango lokuguga, i-precipitates emihle emnyama isasazwa ngokuxineneyo kwimida yengqolowachromium zirconium ubhedu, kunye namaninzi amancinci amancinci amnyama asasazwa kwiinkozo, kunye nobukhulu obumalunga nee-microns ezimbalwa.Njengoko iqondo lobushushu liyehla, igophe lisondela kwicala lobhedu, kwaye ukunyibilika kwayo yi-0.03% kuphela kwi-400 °C.Ngeli xesha, i-copper zirconium particles particles are precipitated kwisisombululo esiqinileyo.Ngoko ke, i-chromium enesakhiwo se-cubic esisekelwe kumzimba, i-chromium enesakhiwo esine-hexagonal esondeleyo, kunye nobhedu obunobuso obunobume be-cubic buphantse bungabonakali kwiqondo lokushisa, kodwa i-copper kunye ne-chromium ayikwazi ukwenza i-compounds, ngelixa i-copper kunye ne-zirconium inokwenza izigaba ezahlukeneyo.I-Chromium kunye ne-zirconium nazo zinokwenza izigaba ezahlukeneyo zekhompawundi.Emva kokunyanga ubushushu, i-matrix ye-chromium zirconium yobhedu lubhedu, kwaye isigaba semvula yi-intermetallic compound ye-Cr phase kunye ne-chromium.
Amandla okuqina, amandla okuvelisa kunye nobunzima be-chromium-zirconium-ubhedu emva kokunyangwa kobushushu bonyuswa, kwaye ubude emva kokwaphuka kuyancipha.I-chromium-zirconium-copper yenza isisombululo esiqinileyo esiphezulu ngexesha lesisombululo esiqinileyo, kwaye isigaba sesibini kunye neengqungquthela zethusi zisuswa kwisisombululo esiqinileyo ngexesha lokuguga.Imvula, ukomelezwa kwesigaba esitsha sokusasazeka.Isigaba sesibini sichithwa kwaye sisasazwa kwi-matrix ukwenza ubudlelwane obuhambelanayo kunye ne-matrix.Kukho ukungalingani okukhulu kwi-interface ehambelanayo, ebangela ukuphazamiseka kwe-lattice, okwandisa amandla e-elastic strain ye-interface yesigaba kunye nokuphucula amandla, ukuqina kunye nokuqina kwe-alloy..I-conductivity yombane ye-chromium zirconium yobhedu emva kokunyangwa kobushushu iphezulu kunoko ngaphambi kokuba unyango lobushushu.Ngokutsho kwethiyori yesisombululo esiluqilima esintsonkothileyo sesigaba sokuqhuba, ukuhanjiswa kombane kwentsimbi esele ikhulile ilawulwa ikakhulu kukunyibilika okuqinileyo kwesisombululo esiluqilima sematrix.Kwiqondo lokushisa kwegumbi, ukunyibilika kwezinto ze-alloy kubhedu kuncinci kakhulu.Ngexesha lenkqubo yokuguga, phantse zonke izinto ze-alloy ziqhubeka zinyuka ukusuka kwi-matrix ye-Cu, kwaye umxholo wezinto ezi-solute kwisisombululo esiqinileyo uyancipha ngokuthe ngcembe de isisombululo esiqinileyo sithandeka kwi-matrix yobhedu ecocekileyo, ngaloo ndlela kuphuculwe ukuhanjiswa kombane.
Ixesha lokuposa: Jul-06-2022