Please contact Dr. Works (keworks@fsu.eu) for additional help: Submission navigation links for Research Symposium Program Portal WF ‹ Previous submission Next submission › Submission information Submission Number: 193 Submission ID: 9041 Submission UUID: 5148f900-d0e1-46be-b88a-7cb8be3e0e6d Submission URI: /student-research/symposium/research-symposium-program-portal Submission Update: /student-research/symposium/research-symposium-program-portal?token=BOodrEgD6EmylF-1JzHGT1HyQxWiGGF6RGzk3jmTnLI Created: Thu, 01/29/2026 - 06:42 PM Completed: Thu, 01/29/2026 - 06:42 PM Changed: Thu, 01/29/2026 - 06:42 PM Remote IP address: 146.201.10.0 Submitted by: Anonymous Language: English Is draft: No Webform: Research Symposium Program Portal WF Submitted to: Student Research Symposium Program Portal Primary Student Contact First Name Primary Student Contact Last Name Pronouns Primary Student Contact FSU Student Email Photo of all individuals presenting this work Professonal Photo of Case and Jonathan.png1.61 MB Remove Upload requirementsOne file only.2 MB limit. Major(s) of all individuals presenting this work Bio of all individuals presenting this work Jonathan Serbest - Mechanical Engineering junior at Florida State University, Honors student, and current Vice President of RAM (Rocketry and Mechatronics) as well as SAME Chapter President in Panama City, FL. I’m gaining hands-on experience through an internship in the MEP field and plan to pursue a master’s in Systems Engineering to deepen my expertise. Passionate about engineering, leadership, and Olympic weightlifting. I'm seeking opportunities that value innovation, systems thinking, and a proactive, growth-oriented mindset. Case Dyer - I am a highly motivated, hardworking, and principled student with experience in SolidWorks, 2-D AutoCAD, and basic computer skills pursuing a summer internship in the field of Mechanical Engineering. What inspired me to enter into the field of Mechanical Engineering was when the engine in my 2003 VW Jetta 1.9L TDI failed. I decided to take it apart and find what had failed in my engine and how I could fix it. After much work, I ended up having to replace the entire cylinder head of my engine, but eventually I put it all back together and am still running this four-cylinder diesel saving machine 50,000 miles later with now 357,000 miles. Poster Title Abstract Twelve additively manufactured Inconel 718 metal samples, a high-strength nickel-based alloy, were subjected to mechanical loading tests and fracture surface examination. Six samples are subjected to torsional loading to failure, while six samples are subjected to elastic tensile loading. The specimens tested are split into two categories: heat-treated and un-heat-treated. The material is manufactured using Laser Powder Bed Fusion (L-PBF), an additive manufacturing process in which a high-energy laser selectively melts successive layers of metal powder to build a solid component. Due to the newness of this technology, limited information is available on how the L-PBF process affects material properties. The purpose of these tests is to determine application-based mechanical properties of additively manufactured Inconel 718 at room temperature under torsional and tensile loading. Properties of interest include Ultimate Torsional Shear Strength, Torsional Yield Strength, Shear Modulus, Modulus of Elasticity, Proportional Limit, and Poisson’s Ratio. The mechanical properties determined for both heat-treated and un-heat-treated specimens show noticeable variation when compared to published experimental values, indicating potential effects from additive manufacturing parameters and post-processing conditions. Overall, the tests demonstrate the ability of this high-strength, ductile material to withstand considerable deformation under torsional loading. Fracture surface examination shows that both sample types predominantly fail along the plane of maximum shear, producing flat fracture surfaces consistent with ductile material behavior and predictions from Mohr’s circle for pure torsion. This study contributes experimental insight into the mechanical response of L-PBF Inconel 718 in torsion and tension. Research Mentor Name Research Mentor's College (or High School) Research Mentor's Department (or Subject) Research Mentor's Email Additional Research Mentor(s) Co-presenter(s) Keywords Poster Session/Number Work Complete Exploratory (the research question has been identified and design of approach is outlined) Presentation Modality Face to Face Poster session Synchronous Online Presentation Asynchronous Online Presentation Poster PDF Upload Upload requirementsOne file only.100 MB limit. Poster Thumbnail Please take a screenshot of your poster to be a thumbnail on your Symposium Program Profile. 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