133 citations · 470 across the 11 of their papers we have counts for
11 papers
Effect of homogenization on precipitation behavior and strengthening of 17-4PH stainless steel fabricated using laser powder bed fusion
Kun Li, Soumya Sridar, Susheng Tan +1
Effective post-heat treatment is critical to achieve desired microstructure for high-performance in additively manufactured (AM) components. In this work, the influence of homogeni…
Cyclic Re-austenitization of Copper-bearing High-Strength Low-Alloy Steels Fabricated by Laser Powder Bed Fusion
Soumya Sridar, Yunhao Zhao, Wei Xiong
For the first time, cyclic re-austenitization is carried out for additively manufactured high-strength low-alloy (HSLA) steels in order to refine the microstructure by reducing the…
Phase Transformations During Continuous Cooling in Inconel 718 Alloys Manufactured by Laser Powder Bed Fusion and Suction Casting
Yunhao Zhao, Liangyan Hao, Qiaofu Zhang +1
Understanding alloy phase transformations during continuous cooling is important for post-processing design and optimization. In this work, continuous-cooling-transformation (CCT)…
Uncertainty Quantification and Composition Optimization for Alloy Additive Manufacturing Through a CALPHAD-based ICME Framework
Xin Wang, Wei Xiong
During powder production, the pre-alloyed powder composition often deviates from the target composition leading to undesirable properties of additive manufacturing (AM) components.…
A new high-throughput method using additive manufacturing for alloy design and heat treatment optimization
Yunhao Zhao, Noah Sargent, Kun Li +1
Many alloys made by Additive Manufacturing (AM) require careful design of post-heat treatment as an indispensable step of microstructure engineering to further enhance the performa…
A Comparative Analysis of Inconel 718 Made by Additive Manufacturing and Suction Casting: Microstructure Evolution in Homogenization
Yunhao Zhao, Kun Li, Matthew Gargani +1
Homogenization is one of the critical stages in the post-heat treatment of additive manufacturing (AM) component to achieve uniform microstructure. During homogenization, grain coa…
Stacking fault energy prediction for austenitic steels: thermodynamic modeling vs. machine learning
Xin Wang, Wei Xiong
Stacking fault energy (SFE) is of the most critical microstructure attribute for controlling the deformation mechanism and optimizing mechanical properties of austenitic steels, wh…
Post-Heat Treatment Design of High-Strength Low-Alloy Steels Processed by Laser Powder Bed Fusion
Soumya Sridar, Yunhao Zhao, Kun Li +2
In this study, a post-heat treatment design for additively manufactured copper-bearing high-strength low-alloy (HSLA)-100 steel is performed by understanding the process-structure-…
Control of Surface Wettability via Strain Engineering
Wei Xiong, Jefferson Zhe Liu, Zhiliang Zhang +1
Reversible control of surface wettability has wide applications in lab-on-chip systems, tunable optical lenses, and microfluidic tools. Using a graphene sheet as a sample material…
An Effective Method to Estimate Composition Amplitude of Spinodal Decomposition for Atom Probe Tomography Validated by Phase Field Simulations
Wei Xiong, John Ågren, Jing Zhou
Reasonable evaluation of composition amplitude in spinodal decomposition is a challenge to microanalysis of atom probe tomography, especially at early stages when phase separation…
Strain Engineering Water Transport in Graphene Nano-channels
Wei Xiong, Jefferson Zhe Liu, Ming Ma +3
Using equilibrium and non-equilibrium molecular dynamic (MD) simulations, we found that engineering the strain on the graphene planes forming a channel can drastically change the i…