About this Abstract |
Meeting |
2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
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Symposium
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Applications
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Presentation Title |
Accelerated Corrosion Behavior of Additive Manufactured WE43 Magnesium Alloy |
Author(s) |
Rakeshkumar Karunakaran, Sam Ortgies, Ryan Green, William Barelman, Ian Kobler, Michael P. Sealy |
On-Site Speaker (Planned) |
Rakeshkumar Karunakaran |
Abstract Scope |
Magnesium alloys withstand operational temperatures of 90°C and pressures of 30 MPa used in oil and gas fracking while rapidly dissolving in days. Dissolvable magnesium plugs are used in fracking to enable longer lateral wellbores by eliminating mill outs and the associated debris clogging. To increase extraction efficiency, the key technical challenge is determining how to increase the strength of a high corrosion rate magnesium device that enables higher pressures while maintaining rapid corrosion rates. Topologically modified dissolvable plugs fabricated by additive manufacturing is proposed as a solution to fabricate strong and high corrosion rate fracture plugs. Additive manufacturing enables manipulation of surface area exposed to corrosive media that is directly correlated to corrosion rate. The research behind this publication (1) identified the optimal powder bed fusion process parameters for WE43 magnesium alloy, and (2) investigated the corrosion behavior of printed WE43 in a concentrated salt solution of sodium bicarbonate to initiate highly accelerated corrosion. Printed WE43 corroded 4-times faster than as-rolled WE43 and was driven by the mechanical and materials properties formed by printing. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |