| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Composition–Processing–Microstructure-Property Relationships of Titanium Alloys
|
| Presentation Title |
G-2: Experimental Investigations on Thermomechanical Fatigue Behavior in Near Alpha Titanium Alloy |
| Author(s) |
Ranjeet Kumar, Kartik Prasad, Sumantra Mandal |
| On-Site Speaker (Planned) |
Ranjeet Kumar |
| Abstract Scope |
In this work, thermomechanical fatigue (TMF) behavior has been studied under clockwise diamond (CD) and counterclockwise diamond (CCD) conditions at two temperature range (i.e., 573 K↔723 K and 723 K↔873 K) and strain amplitudes (i.e., ±0.6% and ±1.0%). The fatigue life is found to be greater under CD than CCD condition at high temperature range. However, at low temperature range, TMF life is reduced under CD than CCD condition at a given strain amplitude. Fractography analyses indicated that oxidation effect is more prominent under CCD than CD condition, resulting in more oxidation damage under the former loading condition at high temperature range. Contrarily to high temperature range, the lower TMF life under CD condition in lower temperature range is due to greater accumulation of damage during tensile loading between 573 K↔648 K temperature range. |