| About this Abstract | 
   
    | Meeting | 2024 TMS Annual Meeting & Exhibition | 
   
    | Symposium | Accelerated Qualification of Nuclear Materials Integrating Experiments, Modeling, and Theories | 
   
    | Presentation Title | A Novel In-situ Miniature Creep Tester for Evaluation of New Cladding Alloys. | 
   
    | Author(s) | Lucas  Maciel de Andrade Lima, Jacob  Eapen, Korukonda Linga Murty, Tasnim  Hassan | 
   
    | On-Site Speaker (Planned) | Lucas  Maciel de Andrade Lima | 
   
    | Abstract Scope | The use of miniature specimens accelerates the development and assessment of mechanical properties of new fuel cladding alloys for next-generation nuclear reactors, addressing limitations on available material volume during alloy development and irradiation experiments. However, there is a lack of testing systems which can perform mechanical tests on miniature specimens. Furthermore, no test system available can perform in-situ scanning electron microscope (SEM) high-temperature creep tests on miniature specimens for real-time characterization. To fill this gap, we developed a novel creep tester capable of performing in-situ SEM tests.
This work discusses the challenges in developing the miniature test equipment and highlights its capabilities. The test results of ex-situ and in-situ tests on miniature specimens of SS316 and alloy Kanthal APMT are presented. In addition, we discuss material characterization and crystal plasticity models used to simulate viscoplastic responses. | 
   
    | Proceedings Inclusion? | Planned: | 
 
    | Keywords | Nuclear Materials, Mechanical Properties, |