Postdoc -Microstructure Characterization and Mechanical Behavior of Advanced Structural Alloy

Oak Ridge National Laboratory • Oak Ridge, TN

1d • Onsite

About The Position

We are seeking a Postdoctoral Research Associate to conduct advanced research on the mechanical behavior and microstructure evolution of advanced structural alloys. This position resides in the Multiscale Modeling and Materials by Design (M2MD) Group within the Materials Science and Technology Division (MSTD), Physical Sciences Directorate (PSD) at Oak Ridge National Laboratory (ORNL). The selected candidate will work in a highly collaborative environment, leveraging state-of-the-art neutron and X-ray characterization facilities to develop a mechanistic understanding of deformation, strengthening, and failure in advanced alloys. The research will focus on integrating microstructure characterization, in situ diffraction techniques, and mechanical testing to uncover processing–microstructure–property relationships. The candidate will have opportunities to interact with multidisciplinary teams and contribute to high-impact publications and collaborative projects.

Requirements

• A PhD in Materials Science & Engineering, Physics, Chemistry, or a related field completed within the last 5 years
• A minimum of 2 years of post-Ph.D. experience utilizing computational thermodynamic (CALPHAD) software, such as Thermo-Calc, DICTRA, PANDAT, or FactSage.
• Proficiency in materials data analytics, including correlation analysis and machine learning techniques.
• A Real ID compliant form of identification will be required.
• Must be able to obtain and maintain a federal Personal Identity Verification (PIV) card.
• Must successfully complete and pass a Federal Tier 1 background check investigation.
• Must declare illegal drug activities, including use, supply, possession, or manufacture within the last year.
• Applicants cannot have received their Ph.D. more than five years prior to the date of application and must complete all degree requirements before starting their appointment.
• Submit three letters of reference when applying for this position.

Nice To Haves

• Experience with microstructure characterization techniques (SEM, EBSD, TEM, XRD).
• Experience in mechanical testing (tension, compression, fatigue, creep, nanoindentation) and in situ neutron or synchrotron diffraction techniques.
• Background in advanced structural alloys, including high-entropy alloys or precipitation-strengthened systems.
• Familiarity with diffraction and data analysis tools (e.g., GSAS, GSAS-II, VDRIVE).
• Experience in alloy fabrication and processing (e.g., arc melting, thermomechanical processing, additive manufacturing).
• Knowledge of deformation mechanisms such as dislocation slip, twinning, and precipitation strengthening.
• Excellent written and oral communication skills.
• Motivated self-starter with the ability to work independently and to participate creatively in collaborative teams across the laboratory.
• Ability to function well in a fast-paced research environment, set priorities to accomplish multiple tasks within deadlines, and adapt to ever changing needs.

Responsibilities

• Conduct research on deformation mechanisms and mechanical behavior of advanced structural alloys.
• Perform detailed microstructural characterization using SEM, EBSD, TEM, XRD, and related techniques.
• Conduct in situ neutron or X-ray diffraction experiments to study micromechanical behavior under loading conditions (e.g., tension, compression, creep).
• Design and execute mechanical testing experiments including tensile, fatigue, creep, impact, and nanoindentation testing.
• Analyze lattice strain evolution, phase stress, and defect evolution using advanced data analysis tools.
• Perform alloy fabrication and processing (e.g., arc melting, heat treatment) and relate processing to performance.
• Apply analytical and modeling approaches to interpret experimental results.
• Collaborate with internal and external research teams to define and advance research directions.
• Present research findings and publish results in peer-reviewed journals.
• Deliver ORNL’s mission by aligning behaviors, priorities, and interactions with our core values of Impact, Integrity, Teamwork, Safety, and Service. Promote equal opportunity by fostering a respectful workplace – in how we treat one another, work together, and measure success.

Benefits

• medical and retirement plans
• flexible work hours
• on-site fitness
• banking
• cafeteria facilities
• Prescription Drug Plan
• Dental Plan
• Vision Plan
• 401(k) Retirement Plan
• Contributory Pension Plan
• Life Insurance
• Disability Benefits
• Generous Vacation and Holidays
• Parental Leave
• Legal Insurance with Identity Theft Protection
• Employee Assistance Plan
• Flexible Spending Accounts
• Health Savings Accounts
• Wellness Programs
• Educational Assistance
• Relocation Assistance
• Employee Discounts

What This Job Offers

• Job Type: Full-time
• Career Level: Entry Level
• Education Level: Ph.D. or professional degree