Abstract
Early fatigue studies on bulk metallic glasses (BMGs) have indicated fatigue strengths lower than anticipated. It was suspected that environmental effects degraded the fatigue life. In the present study, a zirconium-based BMG, BMG-11 (Zr-10Al-5Ti-17.9Cu-14.6Ni, at.%), was tested in vacuum and air. This comparison was made to define any detrimental environmental effects due to water vapor on the fatigue lifetime of BMG-11. The limited results obtained so far suggest that water vapor in air does not affect the lifetime. Moreover, the fatigue endurance limit for BMG-11 in air was found to be quite high, 907 MPa, and comparable to, or better than, those of many conventional high-strength alloys.
| Original language | English |
|---|---|
| Pages (from-to) | 187-192 |
| Number of pages | 6 |
| Journal | Journal of Non-Crystalline Solids |
| Volume | 317 |
| Issue number | 1-2 |
| DOIs | |
| State | Published - Mar 2003 |
| Externally published | Yes |
| Event | Advances in Metallic Glasses - Seattle, WA, United States Duration: Feb 17 2002 → Feb 21 2002 |
Funding
The authors are grateful to the National Science Foundation Integrative Graduate Education and Research Training (IGERT) Program on Materials Lifetime Science and Engineering, managed by Dr Wyn Jennings and Dr Larry Goldberg, and to the Division of Materials Science and Engineering, Department of Energy under contract DE-AC05-00OR22725 with Oak Ridge National Laboratory (ORNL) operated by UT-Battelle, LLC for support of this research. Also, special thanks are given to Dr Charlie Brooks of the University of Tennessee and Dr Ken Liu, Mr Cecil Carmichael, Jr., and Mr Joseph Wright of ORNL for their advice and consultation.
| Funders | Funder number |
|---|---|
| Division of Materials Science and Engineering | |
| IGERT | |
| National Science Foundation Integrative Graduate Education and Research Training | |
| U.S. Department of Energy | DE-AC05-00OR22725 |
| Oak Ridge National Laboratory |