NSTD Research Projects: TRP

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Proposals

Year 1

Quarterly Reports

2004: 3rd, 4th
2005: 1st, 2nd, 3rd, 4th
2006: 1st, 2nd, 3rd, 4th
2007: 1st, 2nd, 3rd, 4th

Annual Reports

2004-2005
2005-2006
2006-2007
2007-2008

Other

Task Products

TRP -> Campaign/Number -> TRP 20

TRP 20. Effect of Silicon Content on the Corrosion Resistance and Radiation-Induced Embrittlement of Materials for Advanced Heavy Liquid Metal Nuclear Systems

Research Objectives & Methods

Four heats of T91 grade steel having Si levels of 0.5, 1.0, 1.5 and 2.0 wt% were custom-melted by a vacuum-induction-melting practice. They were subsequently processed and thermally- treated to achieve fully-tempered martensitic microstructures. These materials were then machined to fabricate desired types of specimens for evaluation of tensile properties, impact toughness, fracture toughness, resistance to localized corrosion, stress corrosion cracking (SCC), and crack propagation behavior. Limited tensile testing was also performed on T91 grade steels under different levels of radiation. Numerous state-of-the-art experimental techniques were employed to evaluate the desired properties.

Researchers

• Ajit Roy, Mechanical Engineering
• Arindam Ghosh, Mechanical Engineering

Collaborators

• Stuart Maloy, AFCI Materials Team Leader, Los Alamos National Laboratory
• Ning Li, LBE Technology Development, AFCI, Los Alamos National Laboratory
• Doug Wells, Associate Professor and Chair, Department of Physics, Idaho State University

Students

• Pankaj Kumar, Ph.D., Mechanical Engineering
  (PhD Thesis Not Available)
• Debajyoti Maitra, Ph.D., Mechanical Engineering
  (PhD Thesis Not Available)
• Sreenivas Kohir, Masters, Mechanical Engineering
  MS Thesis
• Harish Krishnamurthy, Masters, Mechanical Engineering
  (MS Thesis Not Available)
• Vinay Virupaksha, Masters, Mechanical Engineering