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Books

2024

“Solid-State Metal Additive Manufacturing: Physics, Processes, Mechanical Properties, and Applications"
 Editors: Hang Z. Yu, Nihan Tuncer, Zhilii Feng
Wiley-VCH, (2024)

  • ISBN: 9783527839346

2022

Additive Friction Stir Deposition"
 Author: Hang Z. Yu
Elsevier, (2022)

  • eBook ISBN: 9780128243954
  • Paperback ISBN: 9780128243749

View series: Additive Manufacturing Materials and Technologies

 

Book Chapters

2024

"Introduction and Overview", Hang Z. Yu, Nihan Tuncer, and Zhili Feng, Solid-State Metal Additive Manufacturing: Physics, Processes, Mechanical Properties, and Applications, Wiley-VCH (2024)

"Process Fundamentals of Additive Friction Stir Deposition", David Garcia and Hang Z. Yu, Solid-State Metal Additive Manufacturing: Physics, Processes, Mechanical Properties, and Applications, Wiley-VCH (2024)

"Potential Industrial Applications of Additive Friction Stir Deposition", Hang Z. Yu, Rajiv S. Mishra, Chase D. Cox, and Zhili Feng, Solid-State Metal Additive Manufacturing: Physics, Processes, Mechanical Properties, and Applications, Wiley-VCH (2024)

"Future Perspectives", Hang Z. Yu, Nihan Tuncer, and Zhili Feng, Solid-State Metal Additive Manufacturing: Physics, Processes, Mechanical Properties, and Applications, Wiley-VCH (2024)

2021

Emerging Processes – Friction Stir Based"
 Hang Z. Yu
Encyclopedia of Materials: Metals and Alloys, Elsevier, (2021)

2020

Deformation Processes in Additive Manufacturing"
R. Joey Griffiths, Hang Z. Yu, Chase Cox
ASM Handbook, Vol. 24, Additive Manufacturing Processes,  (2020)

Papers in Peer-Refereed Journals

2024

"An exploratory study on miniaturized additive friction stir deposition"

Ryan B. Gottwald, Nikhil Gotawala, Donald J. Erb, Hang Z. Yu 

Journal of Manufacturing Processes, Volume 126, Pages 154-164, (2024).

"Additive friction stir deposition of AA7050 achieving forging-like tensile properties"

Greg D. Hahn, Kendall P. Knight, Nikhil Gotawala, Hang Z. Yu

Materials Science and Engineering: A, Volume 896, 146268, (2024).

"Thermal Prediction of Additive Friction Stir Deposition Through Bayesian Learning-Enabled Explainable Artificial Intelligence"

Yunhui Zhu, Xiaofeng Wu, Nikhil Gotawala, David M. Higdon, Hang Z.  Yu

Journal of Manufacturing Systems, 72, (2024) 1-15

"A Non-Melting Additive Approach to Structural Repair of Aluminum Aircraft Fastener Holes"

R. Joey Griffiths, David Garcia, Greg D. Hahn, Jim Lua, Nam Phan, Hang Z. Yu

Additive Manufacturing Letters, 11, 100249, (2024) 

2023

"Closed-Loop Temperature Controlled Solid-State Additive Manufacturing of Ti-6Al-4V with Forging Standard Out-of-Plane Tensile Properties"

Jake K. Yoder, Donald J. Erb, Ryan Henderson, Hang Z. Yu

Journal of Materials Processing Technology, 118201, (2023).

"Material flow path and extreme thermomechanical processing history during additive friction stir deposition"

Nikhil Gotawala, Hang Z. Yu

Journal of Manufacturing Processes, volume 101, page 114-127, (2023)

Potential and challenges for large-scale near-net-shaping of 7xxx aerospace grade aluminum via additive friction stir deposition"
Hang Z. Yu and Greg D. Hahn
Invited Featured Letter, Materials Letters: X, 100217 (2023)

"Tuning the Martensitic Transformation Mode in Shape Memory Ceramics via Mesostructure and Microstructure Design"

Donald J. Erb, Hunter A. Rauch, Kendall P. Knight, Hang Z. Yu

Shape Memory and Superelasticity (2023). https://doi.org/10.1007/s40830-023-00430-4

2022

"Additive Friction Stir Deposition-Enabled Upcycling of Automotive Cast Aluminum Chips"

Jake K. Yoder, Greg D. Hahn, Nanzhu Zhao, Raymond E. Brennan, Kyu Cho, Hang Z. Yu

Additive Manufacturing Letters, 100108, (2022)

"Towards Underwater Additive Manufacturing via Additive Friction Stir Deposition" 

R. Joey Griffiths, Nikhil Gotawala, Greg D. Hahn, David Garcia, Hang Z. Yu

Materials and Design, 111148, (2022)

 In situ melt pool measurements for laser powder bed fusion using multi sensing and correlation analysis"

Rongxuan Wang, David Garcia, Rakesh R. Kamath, Chaoran Dou, Xiaohan Ma, Bo Shen, Hahn Choo, Kamel Fezzaa, Hang Z. Yu & Zhenyu (James) Kong

Scientific Reports, 12, Article number: 13716 (2022)

"Physics-informed neural network for phase imaging based on transport of intensity equation
Xiaofeng Wu, Ziling Wu, Sibi Chakravarthy Shanmugavel, Hang Z. Yu, and Yunhui Zhu

Optics Express 30 (24), 43398-43416 (2022)  

“Additive Manufacturing of Yttrium-Stabilized Tetragonal Zirconia: Progressive Wall Collapse, Martensitic Transformation, and Energy Dissipation in Micro-Honeycombs"

Hunter A. Rauch, Huachen Cui, Kendall P. Knight, R. Joey Griffiths, Jake K.Yoder, Xiaoyu Zheng, Hang Z. Yu

Additive Manufacturing, 102692  (2022)

“A Bayesian learning framework for fast prediction and uncertainty quantification of additively manufactured multi-material components"

Jee Yun Kim, David Garcia, Yunhui Zhu, David M. Higdon, Hang Z. Yu

Journal of Materials Processing Technology, Vol. 303, 117528  (2022)

2021

Oxidation behaviors of matrix-grade graphite during water vapor ingress accidents for high temperature gas-cooled reactors"

Yi Je Cho, David Garcia, Hang Z. Yu, Zhifei Deng, Ling Li, Kathy Lu

Carbon, Volume 185, Pages 161-176, (2021)

Solid-State Metal Additive Manufacturing for Structural Repair"
Ryan B. Gottwald, R. Joey Griffiths, Dylan T. Petersen, Mackenzie E. J. Perry, and Hang Z. Yu

Accounts of Materials Research, (2021)

Tracing Plastic Deformation Path and Concurrent Grain Refinement during Additive Friction Stir Deposition"
Mackenzie E. J. Perry, Hunter A. Rauch, R. Joey Griffiths, David Garcia, Jennifer M. Sietins, Yunhui Zhu, Yuntian Zhu, Hang Z. Yu
Materialia, 101159,  (2021)   2021 Acta Student Award.  

Solid-state cladding on thin automotive sheet metals enabled by additive friction stir deposition"
W. Douglas Hartley, David Garcia, Jake K. Yoder, Eric Poczatek, Joy H. Forsmark, S. George Luckey, David A. Dillard, Hang Z. Yu
Journal of Materials Processing Technology, Vol. 291, 117045  (2021)

  “Additive friction stir deposition: a deformation processing route to metal additive manufacturing"
Hang Z. Yu, Rajiv S. Mishra
Materials Research Letters, Vol. 9, Issue 2, (2021)

Solid-state additive manufacturing of aluminum and copper using additive friction stir deposition: Process-microstructure linkages"
R. Joey Griffiths, David Garcia, Jie Song, Vijay K. Vasudevan, Matthew A. Steiner, Wenjun Cai, Hang Z. Yu
Materialia, Vol. 15, 100967 (2021)

2020

 “Effects of mechanical constraint on thermally induced reverse martensitic transformation in granular shape memory ceramic packings

Hunter A. Rauch and Hang Z. Yu
Journal of Applied Physics Vol. 128, 245102  (2020) Editor's Pick

Deformation-based additive manufacturing of 7075 aluminum with wrought-like mechanical properties"
Jake K. Yoder, R. Joey Griffiths, Hang Z. Yu
Materials and Design, Vol. 198, 109288  (2020)

Quantitative microstructure analysis for solid-state metal additive manufacturing via deep learning"

Yi Han, R. Joey Griffiths, Hang Z. Yu, Yunhui Zhu
Journal of Materials Research, Vol. 35, Issue 15   (2020)

Morphological and microstructural investigation of the non-planar interface formed in solid-state metal additive manufacturing by additive friction stir deposition"
Mackenzie E.J. Perry, R. Joey Griffiths, David Garcia, Jennifer M. Sietins, Yunhui Zhu, Hang Z. Yu
Additive Manufacturing, 35, 101293, (2020)

Fracture characterization of overmold composite adhesion"
W. Douglas Hartley, John McCann, Scott Davis, Tom Hocker, Somasekhar Bobba, Nikhil Verghese, Devendra Bajaj, Hang Z. Yu, David A. Dillard
Journal of Thermoplastic Composite Materials, 2020

Unraveling pore evolution in post-processing of binder jetting materials: X-ray computed tomography, computer vision, and machine learning"
Yunhui Zhu, Ziling Wu, W. Douglas Hartley, Jennifer M. Sietins, Christopher B. Williams, Hang Z. Yu
Additive Manufacturing, 27, 101183 (2020)

In Situ Investigation into Temperature Evolution and Heat Generation during Additive Friction Stir Deposition: A Comparative Study of Cu and Al-Mg-Si"
David Garcia, W. Douglas Hartley, Hunter A. Rauch, R. Joey Griffiths, Rongxuan Wang, Zhenyu J. Kong, Yunhui Zhu, Hang Z. Yu
Additive Manufacturing, 101386 (2020)

2019

“Stress-induced phase transformation in shape memory ceramic nanoparticles"
V. S. Raut, T. S. Glen, H. A. Rauch, H. Z. Yu, and S. T. Boles
Journal of Applied Physics, 126, 215109 (2019)

“Additive Friction Stir-Enabled Solid-State Additive Manufacturing for the Repair of 7075 Aluminum Alloy"
R. Joey Griffiths, Dylan T. Petersen, David Garcia, Hang Yu
Applied Sciences, 9, 3486 (2019)

"Heterogeneous materials design in additive manufacturing: Model calibration and uncertainty-guided model selection"
David Garcia, Ziling Wu, Jee Yun Kim, Hang Z. Yu, Yunhui Zhu
Additive Manufacturing, 27, 61-71 (2019)

"In situ investigation of stress-induced martensitic transformation in granular shape memory ceramic packings"
Hunter A. Rauch, Yan Chen, Ke An, Hang Z. Yu
Acta Materialia, 168, 362-375 (2019)

"A Perspective on Solid-State Additive Manufacturing of Aluminum Matrix Composites Using MELD"​
R. Joey Griffiths, Mackenzie E. J. Perry, Jennifer M. Sietins, Yunhui Zhu, Nanci Hardwick, Chase D. Cox, Hunter A. Rauch, Hang Z. Yu
Journal of Materials Engineering and Performance, 28, 648-656 (2019)

2018

"Non-beam-based metal additive manufacturing enabled by additive friction stir deposition"

Hang Z. Yu, Mackenzie E.Jones, George W. Brady, R. Joey Griffiths, David Garcia, Hunter A. Rauch, Chase D. Cox, Nanci Hardwick
Scripta Materialia, 153, 122-130 (2018)

“Integration of physically-based and data-driven approaches for thermal field prediction in additive manufacturing”
Jingran Li, Ran Jin, Hang Z. Yu
Materials & Design, 139, 473-485 (2018)

2017

"Mesoscale design of heterogeneous material systems in multi-material additive manufacturing"
David Garcia, Mackenzie E. Jones, Yunhui Zhu, and Hang Z. Yu
Journal of Materials Research, (2017)

“Mesostructure optimization in multi-materials additive manufacturing: a theoretical perspective”
Hang Z. Yu, Samuel R. Cross, and Christopher A. Schuh 
Journal of Materials Science, 52:4288 (2017) 

“Granular shape memory ceramic packings "
Hang Z. Yu, Mostafa Hassani-Gangaraj, Zehui Du, Chee-lip Gan and Christopher A. Schuh
Acta Materialia 132, 455-466 (2017)

Before Virginia Tech

2015

"Stress engineering using low oxygen background pressures during Volmer-Weber growth of polycrystalline nickel films"
Hang Z. Yu and Carl V. Thompson
Journal of Vacuum Science & Technology A, 33, 021504, (2015)


​2014

"Fast and slow stress evolution mechanisms during interruptions of Volmer-Weber growth"
Hang Z. Yu, Jeffrey S. Leib, Steven T. Boles and Carl V. Thompson
Journal of Applied Physics 115, 043521 (2014)

"Response to "Comment on 'Correlation of shape changes of grain surfaces and reversible stress evolution during interruptions of polycrystalline film growth'[Appl. Phys. Lett. 104, 141913 (2014)]"
Hang Z. Yu and Carl V. Thompson
Applied Physics Letters,  105, 246102 (2014)

"Correlation of shape changes of grain surfaces and reversible stress evolution during interruptions of polycrystalline film growth"
Hang Z. Yu and Carl V. Thompson
Applied Physics Letters 104, 141913 (2014)

"Effects of oblique-angle deposition on intrinsic stress evolution during polycrystalline film growth"
Hang Z. Yu and Carl V. Thompson
Acta Materialia 77, 284-293 (2014)

"Grain growth and complex stress evolution during Volmer-Weber growth of polycrystalline thin films,"
Hang Z. Yu and Carl V. Thompson
Acta Materialia 67, 189-198 (2014)