News
December 2022
- Congratulations to (now Dr.) William Douglas Hartley for defending his dissertation!
November 2022
- Congratulations to (now Dr.) Jake K. Yoder for defending his dissertation!
October 2022
- Congratulations to Kendall Knight for passing the Qualifier!
July 2022
- Congratulations to Greg Hahn for passing the Qualifier!
August 2021
- Congratulations to (now Dr.) Mackenzie E. J. Perry for defending her dissertation!
July 2021
- Congratulations to (now Dr.) Robert Joseph Griffiths for defending his dissertation!
April 2021
- Congratulations to Doug Hartley and Jake Yoder for passing the Qualifier!
- Congratulations to (now Dr.) Hunter Rauch for defending his dissertation!
March 2021
2021 TMS Conference
- Dr. Hang Yu presented "Additive Friction Stir Deposition for Repair and Cladding Applications"
- Dr. Hang Yu presented "Solid-state Additive Manufacturing of Heterostructured Materials via Additive Friction Stir Deposition"
- Dr. Hang Yu presented "In Situ Monitoring of Additive Friction Stir Deposition: An Overview"
- Mackenzie Perry presented "Complex Material Deformation and Flow Phenomena during Additive Friction Stir Deposition of Dissimilar Aluminum Alloys"
- Joey Griffiths presented "Texture Development and Influence in Solid-state Additive Manufacturing”
February 2021
- Congratulations to Joey Griffiths, Mackenzie Perry, David Garcia, Doug Hartley, and Dr. Hang Yu for winning the I AM Hydro Challenge!
December 2020
- Congratulations to (now Dr.) David Garcia for defending his dissertation!
November 2020
- Congratulations to Mackenzie Perry and Joey Griffiths for passing their preliminary exams!
October 2020
2020 MS&T Conference
- Mackenzie Perry presented "Additive Friction Stir Deposition for Naval/Maritime Applications"
- David Garcia presented "In situ Monitoring of Temperature, Force, and Interface Contact State during Additive Friction Stir Deposition"
- Hunter Rauch presented "Phase Transformations in Additively Manufactured Materials"
May 2020
- Congratulations to the class of 2020!
March 2020
- Congratulations to Mackenzie Perry and Joey Griffiths for passing their PhD qualifying exam!
- Congratulations to David Garcia for passing his preliminary exam!
February 2020
2020 TMS Conference
- Dr. Hang Yu presented "Additive Friction Stir Deposition for Solid-state Additive Manufacturing of Metals and Metal Matrix Composites"
- Hunter Rauch presented “Energy Absorbing Functional Composites with Negative Stiffness: Al-ZrO2 Fabricated by Additive Friction Stir Deposition”
- Hunter Rauch presented “Superelastic Zirconia Powder for Shockwave Dissipation in Energy Infrastructure”
- Joey Griffiths presented "Advances in Deformation and Microstructure Evolution Understanding in Additive Friction Stir Deposition"
- Joey Griffiths presented "Additive Friction Stir Deposition: Microstructural Control Sensitivity"
November 2019
2019 IMECE Conference
- Mackenzie Perry won "Best Experimental Approach" in the NSF-Student Research Poster Competition with her poster titled "Complex Three-Dimensional Material Flow during Additive Friction Stir Deposition of Dissimilar Aluminum Alloys"
October 2019
- Hang Yu is co-editing a focus issue in the Journal of Materials Research on additive manufacturing of metals, with Yu Zou and Matteo Seita. You are welcome to submit your papers--the deadline is 01/01/2020. Please see details here: https://www.cambridge.org/core/journals/journal-of-materials-research/information/jmr-focus-issues/call-for-papers-additive-manufacturing-of-metals-complex-microstructures-and-architecture-design
- We are hiring Ph.D. students to work on solid-state additive manufacturing of metals and metal matrix composites, starting fall 2020 at Virginia Tech. Candidates with a background in materials science/mechanical engineering/mechanics are encouraged to contact me via email: hangyu@vt.edu.
Project introduction: Additive friction stir deposition (commercialized technology MELD) is an emerging solid-state technology with tremendous potential for large-scale additive manufacturing, repair, and cladding. It has salient advantages over beam-based metal additive manufacturing in residual stress control, microstructure manipulation (resulting in wrought microstructure), cost, and scalability. In this project, we are interested in exploring the use of the technology in additive repair and cladding, focusing on the 3D morphology and phase/microstructure evolution at the interface.
September 2019
2019 MS&T Conference
- Hunter Rauch presented "Small-scale TZP Architectures Manufactured Via Stereolithography"
- Joey Griffiths presented "Advances in Processing and Microstructure Control in Additive Friction Stir Deposition"
- Dr. Hang Yu presented "In Situ Investigation of Stress-induced Martensitic Transformation in Granular Shape Memory Ceramics"
- Dr. Hang Yu presented "Solid-state Additive Manufacturing of Metal Matrix Nanocomposites Using Additive Friction Stir Deposition" (keynote)
- Dr. Hang Yu presented "Solid-State Additive Manufacturing of Aluminum-based Alloys and Aluminum Matrix Composites Using Additive Friction Stir Deposition"
August 2019
- Hunter Rauch passed his PhD qualifier exam
June 2019
- David Garcia passed his PhD qualifier exam
March 2019
2019 TMS Conference
- Dr. Hang Yu presented "Additive Friction Stir Deposition of Metals and Composites"
February 2019
2019 Adhesion Society Meeting
- Doug Hartley presented "Characterization of Overmold Composite Adhesion"
January 2019
TRB 99th Annual Meeting
Dr. Hang Yu presented "Additive Friction Stir Deposition for Repair of Corrosion Damaged Steel Members"
- Doug Hartley recieved the John G. Dillard Travel Award
October 2018
2018 MS&T Conference
- Hunter Rauch presented “Shape Memory Ceramics: Understanding Functionality through Martensitic Transformation”
- Dr. Hang Yu presented "The Non-Equilibrium Processing Nature of Additive Friction Stir Deposition"
- Dr. Hang Yu presented "Additive Manufacturing of Metal Matrix Composites via MELD"
May 2018
- Doug Hartley recieved the Sword Award for an Outstanding Senior Project
April 2018
March 2018
2018 TMS Conference
- Doug Hartley presented "Design of Damage Tolerant Fiber Composites Enabled by Additive Manufacturing"
- Mackenzie Perry presented “Design of Honeycomb TWIP Steels for Maximum Energy Absorption”
- David presented "Meso-scale Design of Heterogeneous Material Systems in Multi-material Additive Manufacturing"
October 2017
2017 MS&T Conference
- Mackenzie Perry presented “Architecturing TWIP Steels for Energy Absorption and Lightweighting”
- Hunter Rauch presented “Martensitic Transformation in Granular Shape Memory Ceramic Packings”
- Dr. Hang Yu presented "Metal additive manufacturing through friction stir-enabled deposition"
May 2017
ICME 2017
- Dr. Hang Yu presented "Enabling Component-scale Prediction in Additive Manufacturing by Integration of Physics-based and Data-driven Modeling"
March 2017
TMS 2017
- Dr. Hang Yu presented "Toughening of meso-structured materials in multi-material additive manufacturing"