Kutheni le nto iZirconium Bars i-Ultrasound Abnormalities?

Ukuphendula kwimeko yangoku yokugqithisa kwe-ultrasonic kwi- i-zirconium bar alloy of black zirconium amakhonkco omtshato, iimvavanyo zenziwa kusetyenziswa uvavanyo lwe-ultrasonic, uvavanyo lwe-radiographic, izicubu zokukhulisa okuphantsi, kunye nohlalutyo lwe-metallographic. Iziphumo zibonisa ukuba isibonakaliso esisodwa se-ultrasonic sifunyenwe kunye nobude bebha ye-zirconium ngokuhlolwa kwe-ultrasonic, eyayiyingongoma enye kwaye akukho ukugqithwa okuhambelanayo kufunyenwe. Indlela yeradiographic iveze imopholoji efana nechaphaza eyayibonakala ngokucacileyo kwizinto ezingezizo. Iziphumo zovavanyo lwezicubu ezisezantsi ze-zirconium alloy zibonise ubukho bokufakwa kwamanye amazwe kwiintonga ze-zirconium. Umbutho we-metallographic wemigangatho yangaphandle nangaphakathi ye-zirconium alloy rod specimen yayikwibanga le-11.5. Akukho ntlangano yengqolowa enqabileyo efunyenweyo, kwaye umphumo wombutho we-coarse grain kwi-alloy ye-zirconium unokungabandakanywa.

1. intshayelelo

I-Zirconium kunye ne-zirconium alloy rods zisetyenziswa ngokubanzi njengezintonga eziphezulu kunye nezisezantsi ezidibanisa kwi-reactors zenyukliya ngenxa yezinga lokufunxa le-neutron ye-thermal cross-sectional absorption kunye nokuxhathisa okulungileyo kokuhlwa. I-zirconium alloy ingots yenziwe, ikhutshwe, kwaye ihlanganiswe ngokulandelelana ukuvelisa imveliso egqityiweyo. Ukwenzela ukuqinisekisa ukhuseleko kunye nomgangatho wezixhobo zenyukliya. Ukuze kuqinisekiswe ukhuseleko kunye nomgangatho wezixhobo zenyukliya, iimveliso ze-zirconium alloy ziyahlolwa kwaye zigwetywe ngokusebenzisa i-ultrasound, i-eddy current, ukungena, i-radiography, kunye nokuhlolwa komphezulu ngexesha lokuveliswa kwemizi-mveliso kwizityalo zamandla enyukliya. Ukuze uhlalutye izizathu ze-ultrasonic overance phenomenon, uvavanyo lophando lwenziwa kwii-bars ezidlulayo ukubonelela ngesiseko sethiyori kunye nesisebenzayo sokulawula umgangatho we-zirconium alloy bars.

2. Ukuqhelaniswa novavanyo

Ibha nganye ye-zirconium alloy yaqala phantsi kokuhlolwa kwe-radiographic kunye ne-ultrasonic, ilandelwa kukukhuhla okuphantsi kwezicubu kunye nokuhlalutya kwe-metallographic ye-optical microstructure ye-zirconium imivalo yegolide ephosakeleyo. Ukuze ugweme ukwaphula i-morphology yomphezulu weqela leemveliso ezineziphene, umbutho we-metallographic wajongwa umaleko ngokomaleko ukujonga i-morphology yeziphene.

3. Iziphumo zoviwo lweUltrasonic

Imephu ye-ultrasonic yeentonga ze-zirconium alloy eziqulethe iziphene zibonise isibonakaliso esisodwa se-ultrasonic kunye nobude bentonga ye-zirconium, eyayiyindawo enye, kwaye akukho mqondiso wokugqithisa ohambelanayo wafunyanwa. Ukongezelela, umqondiso uqhubekile xa i-angle ye-bar ye-zirconium ijikeleziwe, kwaye kucingelwa ukuba i-bar signal ifakiwe. I-Ultrasonic, i-radiographic, i-low magnification kunye neendlela zokujonga i-metallographic zenziwa ukuphanda into engaqhelekanga yemiqondiso ye-ultrasonic kwiintonga eziveliswe zirconium alloy, kwaye iziphumo zibonise ukuba: 

(1) Uphawu olulodwa lwe-ultrasonic lufunyenwe lukhona kunye nobude bezintonga ze-zirconium ngokuhlolwa kwe-ultrasonic. 

(2) Indlela yokuhlola i-radiographic ibonise i-morphology efana ne-dot ebonakalayo ngokucacileyo kwizinto ezingalunganga. 

(3) Iziphumo ze-alloy ye-zirconium i-alloy yovavanyo oluphantsi lwe-tissue ethembekileyo lubonise ubukho bokubandakanywa kwamanye amazwe kwiintonga ze-zirconium. 

(4) Umbutho we-metallographic wemigangatho yangaphandle nangaphakathi ye-zirconium alloy bar specimens yayiyi-11.5 grade. Akukho ntlangano yengqolowa enqabileyo efunyenweyo, kwaye umphumo wombutho we-coarse grain kwi-alloy ye-zirconium unokungabandakanywa.