| 摘要 |
A method of measuring strain in material by (1) selecting a metallic glass ribbon of the composition FewBxSiyCz wherein 0.70</=w</=0.83, 0.10</=x</=0.20, 0.03</=y</=0.10, 0</=z</=0.03, and w+x+y+z=1.00 wherein the metallic glass ribbon is essentially strain free and has easy axes of magnetization which are in the plane of the ribbon transverse (at 90 DEG ) to the long axis of the ribbon; (2) bonding the metallic glass ribbon to material to be measured by means of a homogeneous viscous organic liquid having a viscosity greater than 105 cp at 25 DEG C.; (3) allowing the viscous liquid to relax until the metallic glass ribbon is not stressed by the viscous liquid and is in a state of constant strain within it magnetostrictive dynamic range; and (4) measuring the susceptibility of the metallic glass ribbon which is directly proportional to strain within the material being measured.
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