MS&T21 Plenary Session: MS&T21 Plenary Session
Program Organizers: MS&T Administration, MS&T PCC
Tuesday 8:00 AM
October 19, 2021
Room: Union Station Ballroom
Location: Greater Columbus Convention Center
8:00 AM Welcome Comments
8:05 AM Introductory Comments
8:10 AM Plenary
AIST Adolf Martens Memorial Steel Lecture: Iron: The Ubiquitous Element: Anil Sachdev1; 1General Motors Global Research and Development
This talk will reflect briefly upon the discovery of iron and advancements over the centuries that led to its pervasive use in automotive and other demanding structural applications. The martensitic transformation, which became the turning point in steel metallurgy, and its endless ability to create a variety of microstructures with their unique properties, will be described. Finally, the potential for continued development in the iron-based system that exploits the combination of intrinsic unique material attributes with process and product design will be highlighted.
8:50 AM Award Presentation
8:55 AM Introductory Comments
9:00 AM Plenary
TMS Institute of Metals/Robert Franklin Mehl Award for MS&T21: New Superalloys in the Co-Ni Design Space for 3D Printing: Tresa Pollock1; 1University of California, Santa Barbara
Additive manufacturing promises a major transformation of the production of high economic value metallic materials, enabling innovative, geometrically complex designs with minimal material waste. The overarching challenge is to design alloys that are compatible with the unique additive processing conditions while maintaining material properties sufficient for the challenging environments encountered in energy, space, and nuclear applications. Superalloys with approximately equal parts of Ni and Co offer new design pathways, enabling improved control of solidification and phase transformations that are critical to 3D printing. The role of new experimental, computational and data-centric design tools in discovering new alloys in this domain will be discussed. The unique properties of Co-Ni alloys will be discussed, along with future challenges for the exploration of the Co-Ni design space.
9:40 AM Award Presentation
9:45 AM Introductory Comments
9:50 AM Plenary
ACerS Edward Orton, Jr. Memorial Lecture: Turning Down the Heat in Sintering to Enable the Unification of all Materials: Clive Randall1; 1Pennsylvania State University
Typical ceramic sintering temperatures occurs at 0.5 to 0.95 of the melting temperatures (Tm), in oxides; we conventionally sinter around 800 to 1800 oC. This lecture reviews various chemical pathways, and variables such as pressure, temperature, and time that enable the cold sintering processes to occur at low temperatures. Using model systems, it is possible to contrast the energetics and mechanisms with conventional sintering processes regarding densification and grain growth kinetics. With the introduction of a cold sintering strategy, a common processing platform ~ 200 oC enables the integration of multiple materials that permits new types of composites and devices to be designed. The power of such design versatility will be demonstrated with number of functional ceramics and multilayer devices impacting a broad number of applications. Beyond the successful examples, the many challenges and opportunities of cold sintering will also be discussed, including the vision of a sustainable cyclic economy.
10:30 AM Award Presentation
10:35 AM Concluding Comments