Daawahaani waa hawada dhalaalay ee nikkel-base alloy, waxaa soo saaray Rolls Royce (1971) Ltd. si ay u bixiso walxo xaashi ah oo si sahal ah loo farsamayn karo waxayna bixinaysaa ductility wanagsan shirarka alxanka ah si loogu badalo daawaha NIMONIC 80A si loo buuxiyo shuruudaha naqshadaynta gaarka ah marka la eego cadaadiska caddaynta iyo xoogga gurguurta.Hadda waxa laga heli karaa dhammaan noocyada caadiga ah. Farsamooyinka alxanka ee daawayntani waxay la mid yihiin kuwa loo isticmaalo da'da kale - Alloys base nickel adag.alxanka badbaadinta, daawaynta kulaylka hore lagama maarmaan u ah shirarka da'da adag, laakiin daawaynta da'da sii adkaynaysa ayaa la jecel yahay ka dib marka la dhammeeyo alxanka badbaadada. Alaabta da'da way shaqayn doontaa haddii heerkulku ka sarreeyo 750 digrii.
C | Cr | Ni | Fe | Mo | Cu | Al | Ti |
0.04-0.08 | 19.0-21.0 | dheelitirnaan | ≦0.7 | 5.6-6.1 | ≦0.2 | ≦0.6 | 1.9-2.4 |
Co | Bi | B | Mn | Si | S | Ag | Pb |
19.0-21.0 | ≦0.0001 | ≦0.005 | ≦0.6 | ≦0.4 | ≦0.007 | ≦0.0005 | ≦0.002 |
Cufnaanta (g/cm3) | barta dhalaalaysa (℃) | Awood kuleyl gaar ah (J/kg·℃) | Iska caabin koronto (Ω·cm) | Isku xidhka balaadhinta kulaylka (20-100 ℃)/K |
8.36 | 1300-1355 | 461 | 115×10E-6 | 10.3×10E-6 |
Tijaabi heerkulka ℃ | Xoog xajin MPa | Xoog soo saar (0.2 dhibcood wax soo saarka)MPa | Dheeraynta % | Aagga oo yaraada % | Modulka Kinetic Young GPA |
20 | 1004 | 585 | 45 | 41 | 224 |
300 | 880 | 505 | 45 | 50 | 206 |
600 | 819 | 490 | 43 | 50 | 185 |
900 | 232 | 145 | 34 | 58 | 154 |
1000 | 108 | 70 | 69 | 72 | 142 |
•Daawaha xoogga sare, adkeynta roobabka.
•Forability ee daawaha ee berrinkii codsiga alxanka waa wanaagsan yahay
•ductility heer sare ah.
Codsiyada Nimonic 263:
Ku habboon soo saarista qaab-dhismeedka birta iyo matoorada diyaaradaha iyo qaybaha marawaxadaha gaaska.