| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
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Materials Science for Global Development -- Health, Energy, and Environment: An SMD Symposium in Honor of Wole Soboyejo
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| Presentation Title |
Fatigue Crack Growth Rate Behavior of the Additive Manufactured Nickel-base Superalloy Inconel 718 |
| Author(s) |
Anilchandra R. Adamane, Bharath Bhushan, Sreekanth V Nagar, Sharanabasavaraja J, Tirumalai Srivatsan, Manjunatha C M |
| On-Site Speaker (Planned) |
Tirumalai Srivatsan |
| Abstract Scope |
Selective laser melting (SLM) technique of additive manufacturing was used for the fabrication of standard compact tension (CT) specimens using nickel-base superalloy, Inconel 718. Preliminary track tests were conducted, and the optimized process parameters were used for printing the test specimen. Standard procedure, in conformance with ASTM E 647 Standard, was followed in carrying out the constant amplitude fatigue crack growth rate (FCGR) tests at four different stress ratios viz., R= 0.1, R = 0.3, R = 0.5 and R = 0.7. Interestingly, the effect of stress ratio [R] on crack growth rate was minimum, though both the threshold (Kth) and maximum stress intensity factor (Kmax) values were observed to be noticeably influenced. Evidence from comprehensive fractography observation of the cyclically deformed and failed test specimens was corroborated with the test results. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Other, Other |