Tracer Measurements of Atomic Diffusion inside Shear Bands of a Bulk Metallic Glass

被引：105

作者：

Bokeloh, Joachim ^{[1
]}

Divinski, Sergiy V. ^{[1
]}

Reglitz, Gerrit ^{[1
]}

Wilde, Gerhard ^{[1
]}

机构：

[1] Univ Munster, Inst Mat Phys, D-48149 Munster, Germany

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 23期

关键词：

AMORPHOUS AL88Y7FE5 ALLOY; THERMODYNAMIC PROPERTIES; PLASTIC-DEFORMATION; PD40NI40P20; TEMPERATURE; DYNAMICS; KINETICS; SOLIDS;

D O I：

10.1103/PhysRevLett.107.235503

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Atomic diffusion in deformed Pd(40)Ni(40)P(20) bulk metallic glass containing a single family of deformation-induced shear bands was measured by the radiotracer technique. The significant, by orders of magnitude, enhancement of the diffusion rate with respect to that in the untransformed matrix suggests that the shear bands represent short-circuit diffusion paths. Correlations between diffusivity, viscosity, and the excess free volume distribution inside of shear bands are discussed.

引用

页数：5

共 36 条

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