Yiyu Wang R&D Staff Scientist, Materials Joining Group Contact 865.341.0038 | WANGY4@ORNL.GOV All Publications Interfacial microstructure and mechanical properties of rotary inertia friction welded dissimilar 422 martensitic stainless steel to 4140 low alloy steel joints Remaining lifetime assessment of 141,000-hour service-aged forge 91-pipe 91 steel header welds with novel in-situ digital image correlation Clarification of creep deformation mechanism in heat-affected zone of 9Cr steels with In Situ experiments Rotary Inertia Friction Welding of Dissimilar High- Strength 422 Martensitic Stainless Steel and 4140 Low Alloy Steel for Heavy-Duty Engine Piston Fabrication A highly wear resistant nanostructured bainitic steel with accelerated transformation kinetics Scale-Up of Friction Self-piercing Riveting Process for Multi-material Joints Assessment of a Grade 91 Steel Forging and Seamless Pipe Section After 141,000-Hours of Operation in a Superheat Outlet Header Modeling-Based Design and Optimization of a Gradient Composite Transition Joint An Engineering Approach for Weld Creep Lifetime Assessment Based on Local Property Measurement Microstructure and Creep Performance of Wire Arc Additive Manufactured Grade 91 Steel... Postweld Heat Treatment on Toughness of Electric- Resistance Welded X70 Steel Microstructure and Mechanical Performance of X120 Linepipe Steel in High-Pressure Hydrogen Gas Surface grain refinement of casting A380 aluminum alloy by ultrasonic-assisted surface mechanical grinding treatment Crack-Free Joining of High-Strength AA7055 Sheets by Friction Based Self-Piercing Riveting with the Aid of Numerical Design Report on FY 2023 Welding R&D at ORNL in support of ASME Alloy 709 Code Case Development... A Study of Stress Relaxation Cracking Mechanism in a 347h Steel Pipe-Shoe Weldment After Five-Year Service Joining of High Strength Low Ductility AA7055 by Friction Self-piercing Rivet Experimental and modeling studies of IPDI-based polyurea elastomers – The role of hard segment fraction Crack-free 30% Chromium-Nickel Alloy Welding Products for Nuclear Service In-situ formation of Al3Ni nano particles in synthesis of Al 7075 alloy by friction stir processing with Ni powder addition Microstructure and creep strength of simulated intercritical heat-affected zone of grade 91 steel Interim Report on FY22 ORNL A709 Welding Research and Testing of Production Welds in Support of Developing ASME A709 Code Case Data Package Investigating the Role of Ferritic Steel Microstructure and Strength in Fracture Resistance in High-Pressure Hydrogen Gas Metallurgical Characterization of a 141,000-hour Service-Aged Forge 91-Pipe 91 Steel Header Weldment Report on FY 2021 Fabrication and Testing of Qualified Alloy 709 Welds at ORNL Pagination Current page 1 Page 2 Next page ›â¶Äº Last page Last » Key Links Organizations Physical Sciences Directorate Materials Science and Technology Division Materials Structure and Processing Science Section Materials Joining Group
