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Vol.46, No.9, 572 ~ 577, 2008
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| Title |
| Energy Absorption Capability of Amorphous Alloys During Homogeneous Deformation |
| 박경원 Kyoung Won Park , 이창면 Chang Myeon Lee , 이홍기 Hong Gi Lee , 이재훈 Jae Hoon Lee , 이재철 Jae Chul Lee |
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| Abstract |
| Elastostatic compression tests were carried out on amorphous alloys to evaluate their energy absorption capability during homogeneous deformation at room temperature. Experiments demonstrated that a compressive stress below the global yield imposed on amorphous alloys for extended periods causes homogeneous plastic strain associated with the irreversible structural disordering. During the disordering process, free volume was created, dissipating the externally applied strain energy and the rate of creation was found to converge to a saturated value. We evaluated the capability of energy absorption of amorphous alloys during homogeneous deformation using recent theories on the evolution of the structural state. |
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| Key Words |
| Amorphous alloy, strength, free volume, structural disordering, relaxation heat |
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