PMMD lab together with Dr. Albert To's group in mechanical engineering will collaborate with the QuesTek Innovations LLC developing an ICME modeling tool for the additive manufacturing. This project is a STTR phase I project to proof the concept proposed by QuesTek and Pitt on ICME modeling of additive manufacturing. The project will work on process-structure-property modeling for advanced alloys. Expect Victory!
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Rapid Ready and Additivemanufacturing.com interviewed Prof. Wei Xiong about the ongoing research of additive manufacturing steel development. We are working hard on this! and feel excited about this!
http://www.rapidreadytech.com/2017/08/tooling-up-for-3d-printable-steel/ http://additivemanufacturing.com/2017/08/14/pittsburghs-swanson-school-of-engineering-on-board-with-new-metallic-alloy-compositions-for-additive-manufacturing-am/ We welcome Xin Wang and Ankur Kumar Agrwal to join the PMMD Lab. Both are with strong background in physical metallurgy, and will perform research studies in the lab for their PhD degrees. Expect Victory!
Dr. Wei Xiong received $449,000 funding support from ONR to design additive manufacturing steels6/12/2017 Related news by different media:
http://www.engineering.pitt.edu/News/2017/Wei-Xiong-ONR-AM-Award/ http://www.nextpittsburgh.com/latest-news/pitt-researchers-are-developing-a-new-type-of-steel/ 3dprint.com/178130/university-of-pittsburgh-research/ https://additivemanufacturingtoday.com/university-of-pittsburgh-awarded-449000-to-research-additive-manufacturing-of-high-strength-steels-used-in-naval-environments http://www.additivemanufacturing.media/blog/post/an-am-voyage-seeking-additive-manufacturings-next-gen-metals-for-ship-based-repair https://www.materialstoday.com/powder-applications/news/researchers-tackle-3d-printing-for-maritime-duties/ http://bit.ly/2vBDnHr The advantages of additive manufacturing (AM) – from building complex structures for specific environments to repairing damaged components – continue to be grow as the technology matures. However, there has been limited research in developing new metals and alloys that would further enhance AM processes. Thanks to a three year, $449,000 award from the Office of Naval Research (ONR), the University of Pittsburgh’s Swanson School of Engineering will explore next-generation metals, especially steel, for use in additive manufacturing. The research, “Integrated Computational Materials Design for Additive Manufacturing of High-Strength Steels used in Naval Environments,” is led by Wei Xiong, PhD, assistant professor in the Swanson School’s Department of Mechanical Engineering and Materials Science. The research team also includes Esta Abelev, PhD and Susheng Tan, PhD as the senior personnel supporting materials microstructure characterization and corrosion tests. Funding is provided by the ONR Additive Manufacturing Alloys for Naval Environments (AMANE) program to design, develop and optimize new metallic alloy compositions for AM that are resistant to the effects of the Naval/maritime environment. “There are several metals, from nickel alloys to aluminum and titanium, which are the foundation for AM production of complex parts with properties that could not be developed via traditional, or subtractive, manufacturing. However, many of these materials are not as strong or reliable in the harsh environment of the sea, and that’s a disadvantage for the Navy and other maritime agencies,” Dr. Xiong said. “Steel and its alloys are still the best, most versatile and structurally sound metals for naval construction and repair, and so our research will focus on developing new toolkits to leverage the use of new steel prototypes in AM that will benefit the U.S. Navy." In particular, the Physical Metallurgy and Materials Design Laboratory led by Dr. Xiong will design a new type of high-strength low-alloy steel, which can be widely used in naval construction. The ONR proposal’s objective is for the Pitt researchers to apply the Integrated Computational Materials Engineering (ICME) tools to design both the composition of these allows and the direct metal laser sintering process, which is used in AM to fuse the metal powders into components. The research will also focus on post-process optimization, which can further improve the mechanical properties and corrosion resistance of these specialty steels. “Additive manufacturing presents a transformative opportunity for the Navy and Department of Defense to develop complex structures that are stronger, more reliable and yet cost-effective,” Dr. Xiong said. “Through the integrated computational materials design, from metal development to production and final optimization, we believe we will design new types of steel that will greatly benefit the Navy and the women and men who serve.” Dr. Wei Xiong gave an invited lecture in the ICMEd summer school at the University of Michigan6/6/2017 Dr. Wei Xiong gave an invited lecture on "Materials Genome, ICME & ICMD: The First Half Century" during the ICMEd summer school at the University of Michigan. (https://icmed.engin.umich.edu).
The summer school is annually held and organized jointly by the University of Michigan and UC Berkeley. To address the challenges in the ICME (Integrated Computational Materials Engineering) approach, the “Summer School for Integrated Computational Materials Education,” is a two-week program that includes a “crash course” on computational materials science and engineering (CMSE) and focus sessions on educational modules that can be adopted into existing core courses. Our efforts on CALPHAD-based ICME for Additive Manufacturing has been highlighted by media3/31/2017 The online version of "Digital Engineering" reported the efforts by the PMMD Lab at Pitt on additive manufacturing. Based on our research on additive manufacturing, the news provided more insights on the future research directions on additive manufacturing. More details are available:
http://www.rapidreadytech.com/2017/03/a-deeper-look-into-metal-additive-manufacturing/ We have just completed the test on our new arc-melter with suction casting. It is now ready to use. We are glad that everything went smoothly during the installation, we thank all team members and MRF furnace experts for this. Dr. Xiong and MRF designed several melting molds for this arc-melter, therefore, the arc-melter can easily melt any small button alloys as well as casting rod, which is good for both lab test and prototype new alloy design. Exciting!
Please check out the link below:
www.designnews.com/3d-printing/researchers-develop-simulation-process-metal-am-parts/73727818047390 Our research efforts on simulation of additive manufacturing processes have been reported by DesignNews. The news is based on the interview with Dr. Wei Xiong on his research of ICME modeling for additive manufacturing design of Inconel 718. Dr. Xiong is leading the research of developing materials and processing simulation tools for the DMLS (direct metal laser sintering) process of superalloy. The research aims to control the quality of the metal additive manufacturing, which is become more and more critical for industrial applications of additive manufacturing. Additive manufacturing (AM) researchers at the University of Pittsburgh's Swanson School of Engineering and simulation software company ANSYS, Inc. are among 13 university-led proposals to capture an Early Stage Innovations (ESI) grant from NASA's Space Technology Research Grants Program. ESI grants promote innovative, early stage technologies that address high priority needs of America's space program. The Pitt team's three-year, $500,000 award, "Prediction of Microstructure Evolution in DMLM (Direct Material Laser Melting) processed Inconel 718 with Part Scale Simulation" was funded in the Modeling and Simulation-Based Certification of Additive Manufacturing Processing Parameters category. Principal investigator is Albert To, associate professor of mechanical engineering and materials science and director of the ANSYS Additive Manufacturing Research Laboratory. Co-PI is Wei Xiong, assistant professor of mechanical engineering and materials science and director of Physical Metallurgy and Materials Science Laboratory, and co-investigator is David Conover, chief technologist for mechanical products at ANSYS.
This is the first external fund recevied at the PMMD Lab. More details please check: additivemanufacturingtoday.com Dr. Wei Xiong has been elected as the education subcommittee chair. He will start to serve from Nov 2016 until Feb. 2019. Dr. Xiong will develop the education plan of ICME for the TMS community.
ICME Integrated Computational Materials Engineering is a computer simulation based technique for materials engineering. "Integrated computational materials engineering (ICME) has received international attention due to its great potential to decrease product and process development time and cost, while improving outcomes. Application of ICME to recent foundational engineering problems has confirmed its power to solve industrial problems efficiently and effectively. Capitalizing on these successes, ICME has been the topic of high profile reports, research and development programs, and government initiatives" - cited from the TMS website. Please refer basic explanation on Wikipedia regarding ICME technique. https://en.wikipedia.org/wiki/Integrated_computational_materials_engineering Dr. Xiong is now applying ICME using CALPHAD-based modeling with focused experiments to advanced alloy and manufacturing design. |
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Physical Metallurgy & Materials Design Laboratory Archives
November 2018
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