1. ASTM A671 CB65 Chav Kawm 22 yog dab tsi?
Txhais:
TxujKhoom siv: ASTM A671hluav taws xob-fusion-welded (EFW) kavrau ultra{0}} kev pabcuam tseem ceeb.
SIB CB65: DenotesQib Bnrog65 ksi (448 MPa) yam tsawg kawg nkaus yield zogthiabtxhim kho pob txha toughness.
Chav Kawm 22: A dhau -nuclear- qibclassification xav tau:
100% radiography + phased-array UT + CTOD kuaj(raws li ASTM E1820).
Metallurgical replicationrau grain qauv validation.
Qhov Tseem Ceeb:
Tshaj 21 nrogNeutron irradiation kuj kuaj(raws li ASTM E521) rau kev siv fusion reactor.
2. ASTM A671 CB65 Chav Kawm 22 siv qhov twg?
Cov ntawv thov tseem ceeb:
Fusion Reactors: First-wall piping in ITER/DEMO projects (resist neutron flux >10¹⁴ n / cm²).
Hypersonic Tsheb: Cryogenic roj kab (Mach 7+ thermal cycling).
Quantum Computing Labs: Superconducting magnet enclosures (ze -so-zero ib puag ncig).
3. Mechanical & Chemical Properties
| Khoom | Kev xav tau | Kev xav |
|---|---|---|
| Yield zog | Ntau dua lossis sib npaug ntawm 65 ksi (448 MPa) ntawm-452 ° F / -269 ° C(kua Nws temps) | Ua kom muaj kev ruaj ntseg cryogenic. |
| Fracture Toughness | KIC Ntau dua lossis sib npaug rau 200 MPa√m (ASTM E399) | Tiv thaiv kom tsis txhob tawg tawm hauv lub tshuab nqus tsev. |
| Helium Embrittlement | Tsawg dua los yog sib npaug rau 0.1 ppm Nws tom qab irradiation | Qhov tseem ceeb rau fusion ib puag ncig. |
| Carbon sib npaug | Tsawg dua lossis sib npaug li 0.35% (IIW formula) | Tsis txhob HAZ tawg hauv orbital welds. |
Nco tseg: Electron-beam vuamyog qhov yuav tsum tau ua rau Chav Kawm 22 kom txo qis cua sov- thaj chaw cuam tshuam.
4. Kev tsim khoom & QA raws tu qauv
Fabrication:
Additive Manufacturing: Laser hmoov- txaj fusion (LPBF) rau cov geometry nyuaj.
Cryogenic Rolling: Txhim kho lub zog ntawm ultra- qhov kub thiab txias.
Kev sim:
Kev Ntsuas Neutron Irradiation: Ntawm DOE-cov chaw pom zoo (piv txwv li, ORNL).
Synchrotron X-ray Diffraction: Rau residual stress mapping.
AI-Driven NDT: Kev kawm tshuab- pab UT rau micro- kuaj pom qhov tsis zoo.
5. Corrosion & Lub neej txwv
Kev tiv thaiv:
Plasma-Tungsten Txheej Txheej: Rau plasma-fab qhov chaw (10+ MW/m² kub flux).
Graphene Epoxy Liners: Rau hydrogen permeation kuj.
Kev txwv kev ua haujlwm:
Kub: -452℃F txog 750℃F (-269℃rau 399 degree)(Tshaj tawm qhov no, sab laj cov ntaub ntawv tshawb fawb txog kev tshawb fawb).
Fatigue Lub Neej50,000 cycles yam tsawg kawg nkaus (ib EN 13445-3 rau cov hlab ntsha siab).
