Engineer V, Materials; Graphite Oxidation

Engineer V, Materials (Graphite Oxidation) – X‑Energy

This role is responsible for performing engineering tasks associated with selecting, qualifying, and conducting lifetime assessment analyses for materials in a nuclear reactor or nuclear facility.

• Develop and implement methodologies to qualify and characterize materials, especially metallic alloys, graphite, composites, and welding materials for nuclear reactor applications including in high temperature environments.
• Support selection of appropriate materials, test methods, codes and standards, and prepare material specifications for component procurement.
• Inform development of and assist in oversight of materials testing programs to collect material properties and establish basis for material qualifications.
• Use engineering tools, including appropriate simulation software, hand calculations, and engineering judgment, assess microscale behavior, grain boundaries, surface effects, degradation behavior (corrosion, oxidation kinetics, neutron damage, etc.), and lifetime performance of materials.
• The role may include specialization in one or more of the following areas:
• Metallurgy
• Perform and assist metallurgical analysis for the alloys selected for metallic systems, structures, and components of X‑energy developed reactors, including pressure vessels and piping, reactor internals, heat exchangers, and other systems and components.
• Collect and use data to support the generation of constitutive material models and perform and assist structural integrity, creep‑fatigue, and strain evaluations for metals at high temperatures.
• Graphite
• Perform and assist material degradation analysis for graphite and composite components of X‑energy developed reactors, including graphite core assemblies, and assessment of as‑manufactured, irradiated, and oxidized data.
• Collect and use data to support the generation of constitutive material models / analytical tools and perform and assist structural integrity, cracking, dimensional change, and stress/deformation evaluations for irradiated graphite.
• Perform system‑level and component‑level analyses to support impurity inventory calculation and assessment of oxidation, corrosion, and associated material property evolution for these and other relevant degradation mechanisms through the life of the reactor.
• Collect and use data to support the generation of models / analytical tools and perform and assist oxidation, corrosion, particulate, and impurity inventory management evaluations for systems and components.
• Nuclear
• Perform system‑level and component‑level analyses to support assessment of radiation aging / embrittlement, and associated material property evolution for these and other relevant degradation mechanisms through the life of the reactor.
• Collect and use data to support the generation of models / analytical tools and perform and assist radiation effects life assessment evaluations for system and components.
• Support the assessment of SSCs for response to environmental conditions at the direction of project leads.
• Consider effects of tribology and material property evolution on system and component design as a function of temperature and environment.
• Write and develop design and analysis documentation including design basis documents, technical reports, calculations, and drawings in accordance with applicable procedures, as well as industry publications and engagement in professional forums.
• Develop Verification and Validation (V&V) plans for analytical tools and support qualification of toolsets.
• Perform work in accordance with X‑energy quality procedures for design and configuration management to ensure project quality requirements are met.
• Provide independent reviews and acceptance reviews of engineering deliverables and data.
• Maintain professional demeanor and behavior at all times in all forms of communication.
• Perform other duties as assigned by manager.

• Bachelor’s degree in materials engineering, or related engineering discipline (e.g., chemical, nuclear, mechanical etc.) from an accredited institution.
• Typically, twenty years of experience in an engineering role.
• A master’s degree in…