Personal Links:
• ORCIDProfessional Memberships:
• Technical Committee Member in TMS: Advanced Characterization, Simulation and Testing (ACST)• The American Ceramic Society (ACerS)
Academic Degrees
- Ph.D. Mechanical Engineering, University of Wisconsin-Madison
Certifications
- Ph.D.
We are hiring
Our group is seeking PhD applicants to start in Spring 2025 or Fall 2025 in the area of Metal Additive Manufacturing. Students with a background in Additive Manufacturing, Materials Science & Engineering, Metallurgical Engineering, or a related field are encouraged to apply. Full financial support will be provided. If you are interested, please contact us via email (qilin.guo@unl.edu) with your CV and transcripts attached.
Experience
- 01/2023-present, Assistant Professor, Department of Mechanical & Materials Engineering, University of Nebraska-Lincoln
- 10/2022-12/2022, Adjunct Faculty Member, Department of Mechanical & Materials Engineering, University of Nebraska-Lincoln
- 08/2022-12/2022, Research Associate, Department of Mechanical Engineering, University of Wisconsin-Madison
Areas of Research and Professional Interest
- Metal additive manufacturing, laser powder bed fusion, laser processing
- In-situ characterization, synchrotron X-ray imaging & diffraction
- New alloy development for AM, microstructural characterization
Research Profiles:
Courses Taught
- MECH 472/872 Additive Manufacturing (Fall 2023, Fall 2024)
- MECH 370 Manufacturing Methods and Processes (Spring 2024)
About Qilin Guo
Guo's research interests are at the intersection of additive manufacturing, materials science, and advanced in-situ characterization. He is a pioneer in the use of synchrotron-based in-situ X-ray imaging and diffraction to study the physical dynamics of metal additive manufacturing processes, including the formation and evolution of defects such as spatter, porosity, and cracks, as well as heat and mass transfer and phase transformation.
During his Ph.D. studies, Guo focused on characterizing and quantifying the fundamental physics that govern highly dynamic metal additive manufacturing processes, thereby revealing the mechanisms underlying their physical dynamics. His major accomplishments include the characterization of powder spattering, melt pool evolution, and melt flow evolution in the laser power bed fusion additive manufacturing process. Guo also employed in-situ high-energy X-ray diffraction to study the phase transformation dynamics of 17-4 PH steel during rapid solidification. His research has provided crucial insights into the metal additive manufacturing process and could guide the development of more stable and consistent processes.
Selected Research News
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Researchers Uncover How to 3D-Print One of the Strongest Stainless Steels
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How to 3D-Print One of the Strongest Stainless Steels
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Guo receives 2022 Rosalind Franklin Young Investigator Award https://www.anl.gov/article/guo-receives-2022-rosalind-franklin-young-investigator-award
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Pictures of success in 3-D printing
Group News
Honors and Awards
- 2024 Research Development Fellows Program (RDPF) award, from the University of Nebraska Foundation
- 2022 APSUO Rosalind Franklin Young Investigator Award (2022, APS Users Organization, Argonne National Laboratory)
https://www.anl.gov/article/guo-receives-2022-rosalind-franklin-young-investigator-award
Selected Publications
A full list of publications is available on my Google Scholar page.
- Qilin Guo, Minglei Qu, Chihpin Andrew Chuang, Lianghua Xiong, Ali Nabaa, Zachary A. Young, Yang Ren, Peter Kenesei, Fan Zhang, Lianyi Chen. Phase transformation dynamics guided alloy development for additive manufacturing. Additive Manufacturing, 59 (2022) 103068.
- Qilin Guo, Minglei Qu, Luis I. Escano, S. Mohammad H. Hojjatzadeh, Zachary Young, Kamel Fezzaa, Lianyi Chen. Revealing melt flow instabilities in laser powder bed fusion additive manufacturing of aluminum alloy via in-situ high-speed X-ray imaging. International Journal of Machine Tools and Manufacture, 175 (2022) 103861.
- Q. Guo, C. Zhao, M. Qu, L. Xiong, S. M. H. Hojjatzadeh, L. I. Escano, N. D. Parab, K. Fezzaa, T. Sun, L. Chen. In-situ full-field mapping of melt flow dynamics in laser metal additive manufacturing. Additive Manufacturing, 31 (2020) 100939.
- Q. Guo, C. Zhao, M. Qu, L. Xiong, L. I. Escano, S. M. H. Hojjatzadeh, N. D. Parab, K. Fezzaa, W. Everhart, T. Sun, L. Chen. In-situ characterization and quantification of melt pool variation under constant input energy density in laser powder-bed fusion additive manufacturing process. Additive Manufacturing, 28 (2019) 600-609.
- Q. Guo, C. Zhao, L. I. Escano, Z. Young, L. Xiong, K. Fezzaa, W. Everhart, B. Brown, T. Sun, L. Chen. Transient dynamics of powder spattering in laser powder bed fusion additive manufacturing process revealed by in-situ high-speed high-energy x-ray imaging. Acta Materialia, 151 (2018) 169-180.
- Minglei Qu, Qilin Guo, Luis I. Escano, Ali Nabaa, S. Mohammad H. Hojjatzadeh, Zachary A. Young, Lianyi Chen. Controlling process instability for defect lean metal additive manufacturing. Nature Communications, 13 (2022) 1-8.
- C. Zhao, Q. Guo, X. Li, N. Parab, K. Fezzaa, W. Tan, L. Chen, T. Sun. Bulk explosion induced metal spattering during laser processing. Physical Review X, 9 (2019) 021052.
- S. M. H. Hojjatzadeh, N. D. Parab, W. Yan, Q. Guo, L. Xiong, C. Zhao, M. Qu, L. I. Escano, X. Xiao, K. Fezzaa, W. Everhart, T. Sun, L. Chen. Pore elimination mechanisms during 3D print of metals. Nature Communications, 10 (2019) 1-8.
Recent Presentations
- 2022 APS/CNM Users Meeting, Virtual [APS Plenary talk]
- 33rd Solid Freeform Fabrication Symposium, Austin, Texas, USA, 2022
- TMS 2022 Annual Meeting & Exhibition, Anaheim, California, USA
- TMS 2021 Annual Meeting & Exhibition, Virtual
- TMS 2020 Annual Meeting & Exhibition, San Diego, California, USA
- 30th solid Freeform Fabrication Symposium, Austin, Texas, USA, 2019
- TMS 2019 Annual Meeting & Exhibition, San Antonio, Texas, USA
- 29th Solid Freeform Fabrication Symposium, Austin, Texas, USA, 2018
- TMS 2018 Annual Meeting & Exhibition, Phoenix, Arizona, USA