| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1580334 | Materials Science and Engineering: A | 2010 | 6 Pages |
Abstract
In this study, fatigue characteristics of C70S6 and SMA40 materials as a potential application in connecting rod for an Internal Combustion (IC) engine were investigated. An average fatigue life of 140,200 and 168,700 cycles and a fatigue limit of 432 and 437Â MPa were determined for C70S6 and SMA40 specimens, respectively. However, when tested under the fretting condition, the fatigue lifetime was decreased by 77.8% and 20% and the fatigue limit was reduced to 96 and 350Â MPa for C70S6 and SMA40 specimens, respectively. From the observations of fracture surfaces, it was confirmed that the fretting played a critical role in introducing many cracks at the initial stage of fatigue. It is clearly shown in this study that special attention should be given to the fatigue behavior of given materials under fretting condition to ensure reliable design and application of components in an automobile.
Keywords
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Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Hye Sung Kim, Tae Gyu Kim, Tai-Joo Chung, Hyun Soo Kim, Soon-Jik Hong,