Patent ID: 8685179

Claim:
An Fe-based amorphous alloy represented by a composition formula: Fe 100-a-b-c-x-y-z Ni a Sn b Cr c P x C y B z , wherein an addition amount a of Ni satisfies 4 at %â‰¦aâ‰¦6 at %, an addition amount b of Sn satisfies 0 at %â‰¦bâ‰¦3 at %, an addition amount c of Cr satisfies 0 at %â‰¦câ‰¦6 at %, an addition amount x of P satisfies 6.8 at %â‰¦xâ‰¦10.8 at %, an addition amount y of C satisfies 2.2 at %â‰¦yâ‰¦9.8 at %, and an addition amount z of B satisfies 0 at %â‰¦zâ‰¦4.2 at %, and wherein the alloy has a glass transition temperature (Tg) equal to or lower than 740K.