MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
Compression-Compression Fatigue and Fracture Behaviors of Zr50Al10Cu37Pd3 Bulk-Metallic Glass
Dongchun QiaoGongyao WangWenhui JiangY. YokoyamaPeter K. LiawHann Choo
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2007 Volume 48 Issue 7 Pages 1828-1833

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Abstract

The compression-compression fatigue and fracture behaviors were studied on the Zr50Al10Cu37Pd3 bulk-metallic glasses (BMGs) under a load control, employing an electrohydraulic machine, at a frequency of 10 Hz (using a sinusoidal waveform) with an R ratio of 10, where Rmin.⁄σmax.min. and σmax. are the applied minimum and maximum stresses, respectively). The obtained results were compared with those of the tension-tension fatigue tests. The life under the compression-compression fatigue was improved significantly. However the fatigue-endurance limits in two different stress states are comparable. The fracture morphology and the specimen surfaces were observed. The possible different fracture mechanisms under two kinds of stresses were discussed.

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© 2007 The Japan Institute of Metals and Materials
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