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North Thesis Final.pdf (6.07 MB)

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Metal Coupon Testing in an Axial Rotating Detonation Engine for Wear Characterization

North, Gary S.
http://orcid.org/0000-0002-0198-0675
http://rave.ohiolink.edu/etdc/view?acc_num=wright1588770787704665

Abstract Details

2020, Master of Science in Materials Science and Engineering (MSMSE), Wright State University, Materials Science and Engineering.
Rotating Detonation Engines (RDE) are being explored as a possible way to get better fuel efficiency for turbine engines than is otherwise possible. The walls of the RDE are subjected to cyclic thermal and mechanical shock loading at rates of approximately 3 KHz, with gas temperatures as high as 2976 K. This project performed testing with Inconel 625 and 304 stainless steel coupons in an RDE outer body to attempt to measure material ablation rates. Significant microstructural changes were observed to include grain growth in both alloys, carbide formation and grain boundary melting in Inconel, and formation of delta ferrite in the stainless steel. The testing performed in this study was unable to generate a wear rate for either material. The Inconel coupons exhibited threshold behavior, with no measurable material loss below a critical temperature, and near instantaneous melting and failure above that temperature. The 304 survived the most aggressive test conditions the facility could produce without measurable ablation. Longer duration testing is required in order to determine a damage rate for these materials under a detonative environment.
H. Daniel Young, Ph.D. (Advisor)
Raghavan Srinivasan, Ph.D., P.E. (Committee Member)
Christopher Stevens, Ph.D. (Committee Member)
116 p.
Aerospace Engineering; Aerospace Materials; Materials Science; Metallurgy
RDE; Rotating Detonation Engine; Ablation; Inconel 625; 304 Stainless; microstructure;

Recommended Citations

Citations

  • North, G. S. (2020). Metal Coupon Testing in an Axial Rotating Detonation Engine for Wear Characterization [Master's thesis, Wright State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=wright1588770787704665

    APA Style (7th edition)

  • North, Gary. Metal Coupon Testing in an Axial Rotating Detonation Engine for Wear Characterization. 2020. Wright State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=wright1588770787704665.

    MLA Style (8th edition)

  • North, Gary. "Metal Coupon Testing in an Axial Rotating Detonation Engine for Wear Characterization." Master's thesis, Wright State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=wright1588770787704665

    Chicago Manual of Style (17th edition)

wright1588770787704665
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This open access ETD is published by Wright State University and OhioLINK.