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 R = σmin./σmax. (σmin. 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.
Original language | English |
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Pages (from-to) | 1828-1833 |
Number of pages | 6 |
Journal | Materials Transactions |
Volume | 48 |
Issue number | 7 |
DOIs | |
Publication status | Published - 2007 Jul |
Externally published | Yes |
Keywords
- Casting
- Electron microscopy
- Fatigue resistance and crack growth
- Glasses
- Metallic
- Scanning
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering