Special Lectures

Division Luncheon Lectures

Because the following events include a catered lunch, there is a $35 cost to attend. Tickets can be purchased through the Meeting Registration form.

Structural Materials Division Luncheon

Speaker: Somnath Ghosh, Johns Hopkins University
Lecture Title: "Advances in Computational Mechanics and Computational Materials Science for Multi-Scale Fatigue Prediction"
Date: Monday, March 12
Time: 1:00 p.m. to 2:30 p.m.
Location: Phoenix Convention Center, Room 106ABC
Cost: $35 (Tickets can be purchased through the Meeting Registration form)
About the Speaker: Somnath Ghosh is the Michael G. Callas Professor in the Department of Civil Engineering and Professor of Mechanical Engineering and Materials Science & Engineering at Johns Hopkins University (JHU). At JHU, he is the founding director of the JHU Center for Integrated Structure-Materials Modeling and Simulation (CISMMS) and the Air Force Center of Excellence in Integrated Materials Modeling (CEIMM). Prior to coming to Johns Hopkins University, he was the John B. Nordholt Professor of Mechanical Engineering and Materials Science & Engineering at the Ohio State University until March 2011. Ghosh is a leader in the field of Computational Mechanics of Materials. His pioneering research has helped advance the entire field of computational materials modeling into new areas of current importance and challenges. His interdisciplinary research has brought together the Computational Mechanics and Computational Materials Science scientific communities. This forms an important foundation for the newly formed Integrated Computational Materials Science & Engineering (ICMSE) initiatives. Ghosh leads an internationally recognized research program on multi-scale modeling of mechanical behavior and failure response of composite materials, polycrystalline metals involving structure-material interactions.

About the Presentation: This talk will introduce an approach to the development of a multi-scale computational framework for physics-based, multiscale modeling of fatigue crack nucleation and evolution in polycrystalline metallic materials, with a specific focus on titanium alloys. The talk will begin with methods for generating 3D statistically equivalent representative virtual images and representative volume elements from experiments on material characterization. An experimentally validated crystal plasticity finite element (CPFE) model will be discussed for predicting microstructural deformation under monotonic and cyclic loading. The CPFE simulations will provide a platform for the development of a physics-based crack nucleation model that accounts for microstructural inhomogeneity. Accelerated simulations for a large number of cycles leading to fatigue crack nucleation will be accomplished by a wavelet transformation based multi-time scaling (WATMUS) algorithm. This method significantly enhances computational efficiency in comparison with conventional single time-scale integration methods. Subsequently, the development of parametrically homogenized constitutive models (PHCM) will be discussed for macroscopic analysis. The PHCM explicitly accounts for microstructural morphology and crystallography through model parameters in the constitutive functions. The talk will conclude with a case study on the necessity of multi-scale models for predicting fatigue crack nucleation.

Extraction & Processing Division/Materials Processing & Manufacturing Division Luncheon

Date: Tuesday, March 13
Time
: Noon to 2:00 p.m.
Location: Phoenix Convention Center, Room 106ABC
Cost
: $35 (Tickets can be purchased through the Meeting Registration form)
Due to unexpected circumstances, the previously announced EPD/MPMD luncheon lecturer will not be able to present at TMS2018. Information on the new luncheon speaker will be available shortly. Check back soon for details.

Light Metals Division Luncheon

Speaker: Martin Jarrett, Constellium UK Ltd
Lecture Title: "Accelerating the Development of Aluminum Lightweighting Solutions for Crash Management Systems and Structural Automotive Components"
Date: Wednesday, March 14, 2018
Time: Noon to 2:00 p.m.
Location: Phoenix Convention Center, Room 106ABC
Cost: $35 (Tickets can be purchased through the Meeting Registration form)
About the Speaker: Martin Jarrett is the global technical director of the Automotive Structures & Industry business unit of Constellium, holds a master’s degree in metallurgy, and is a chartered engineer and fellow of the Institute of Materials, Minerals & Mining (IOM3). Jarrett was chair of the Light Metals Division of  IOM3 for 14 years. He is also the technical director of the new Constellium University Technology Centre at Brunel University. Jarrett has an extensive background in aluminum extruded products across a wide range of sectors including aerospace and automotive, having worked for Alcan, British Aluminium, Alcoa, Sapa, and now Constellium in a number of senior technical roles in both R&D and operations over a 30-year career in the industry.
About the Presentation: In this talk, Martin Jarrett will discuss how the importance of being innovative and close to their customers is a driving force within Constellium and for their automotive business. This strategy has broken new ground at Brunel University London with the establishment of the Constellium University Technology Center (UTC). This center, a first of its kind in the industry, aims to bridge the gap between fundamental research and series production. A key feature of the work of the UTC will be the rapid prototyping of extruded profiles and components to enhance strength and crush performance limits. A "copy and paste" approach to technology transfer and industrialization will then provide the opportunity to significantly compress development times to series production. The UTC will have a powerful armory of hardware to deliver on its promise of advanced technology and shorter times to market. The opening of the first phase took place in April 2016, with the commissioning of a full-size extrusion press and associated billet casting facilities. Phase 2 will be operational in Q1 2018 and will consist of novel forming and joining technologies in order to produce full-size component prototypes. This presentation will showcase the equipment and some of the key projects being developed, with a critical focus on the application of high-strength 6xxx alloys for the light weighting of structural automotive parts.

Award Lectures

Extraction & Processing Division Distinguished Lecturer

Speaker: Geoffrey Brooks, Swinburne University of Technology
Lecture Title: "The Revolutions Ahead in Pyrometallurgy"
Date: Monday, March 12
Time: 8:00 a.m.
Location: Phoenix Convention Center, Room 228A

About the Presentation: The pyrometallurgical production of metals has undergone major technological development over the last fifty years. However, important technological and scientific challenges remain, in particular in developing high productivity routes to light metals and in utilizing renewable energy in metals production. There has been considerable progress in developing new pyrometallurgical routes for aluminum, magnesium, and titanium over the last decade. The presenter and his co-workers have made significant progress in developing a new carbothermic route to magnesium and in evaluating alternate routes to aluminum. In this work, a combination of computational modelling techniques and novel laboratory apparatus has been used to test and optimize new process concepts. In designing a supersonic quenching apparatus for magnesium vapors, models that combine computational fluid dynamics and condensation kinetics were used to optimize the design. This combination of modelling and novel laboratory scale testing is also evident in the presenter’s works on developing solar thermal routes to metals production, where a unique solar simulator has been developed for testing reactor concepts. Research groups in Europe and North America have been combining both challenges by researching solar thermal routes to light metals production.
​About the Speaker: Geoffrey Brooks has been a professor of engineering at Swinburne University of Technology since 2006. He was previously a senior principal research scientist at CSIRO (2004-2006), an associate professor at McMaster University (2000-2004), and a senior lecturer at the University of Wollongong (1993-2000). Since completing his Ph.D. at the University of Melbourne in 1993, he has published more than 200 papers and run many projects with companies and government agencies. Brooks has worked extensively on fundamental aspects of steel, aluminium, magnesium, zinc, copper and antimony production. Much of his work has focused on process kinetics, particularly developing process models for optimizing metallurgical processes, such as his team's work on modelling of Zinc fuming for top submerged lance processes. He has also been active in process development, leading a team at CSIRO that successfully developed a new carbothermic route to magnesium. In addition to his research, he has delivered courses and lectures around the world, including in the USA, Canada, UK, Netherlands, Korea, Japan, China, Indonesia, and India.

William Hume-Rothery Award

Speaker: Zi-Kui Liu, The Pennsylvania State University
Lecture Title: "Computational Thermodynamics of Materials and Its Applications"
Date: Monday, March 12
Time: 8:00 a.m.
Location: Phoenix Convention Center, Room 127C
About the Presentation: Thermodynamics is a science concerning the state of a system, whether it is stable, metastable or unstable, when interacting with the surroundings. Computational thermodynamics enables quantitative calculation of thermodynamic properties as a function of both external conditions and internal configurations, in terms of first and second derivatives of energy with respect to either potentials or molar quantities. In this presentation, the author’s experience on thermodynamics and computational thermodynamics will be discussed along with their applications, particularly the calculations of thermodynamic properties at finite temperatures and diffusion coefficients using density functional theory, the usefulness of Maxwell relations among the second derivatives in predicting critical phenomenon, and materials design. The significance of second derivatives with respect to one molar quantity and one potential will also be examined. Finally, the author’s perspectives on challenges and opportunities in computational thermodynamic will be presented.

Institute of Metals/Robert Franklin Mehl Award

Speaker: Marc André Meyers, University of California, San Diego
Lecture Title: "Biological Materials Science: Challenges and Opportunities"
Date: Monday, March 12
Time: 9:50 a.m.
Location: Phoenix Convention Center, Room 225B
About the Presentation: Biological materials science is a new and vibrant field of materials science and engineering. Although biologists have been studying organisms for centuries, it is only recently that materials scientists have started to use their fantastic experimental, computational, and analytical arsenal of tools to reveal new features. We present the Arzt heptahedron, which defines seven unique and defining characteristics of biological materials. The plethora of different structures and mechanical properties of biological materials is systematized through a new paradigm: eight structural design elements, which are motifs appearing on different species and scales, and which enable analytical treatment and lead to enhanced understanding. We have applied this approach to approximately twenty different organisms. We illustrate our approach by applying this knowledge to the toucan beak, rabbit and pig skin, fish scales, and feathers. It is fascinating to see that characterization techniques such as optical, transmission and scanning electron, and atomic force microscopy, SAXS, Micro and Nano CT, and mechanical testing techniques such as nanoindentation, tensile and compressive testing are helping us to better understand these complex structures. Current efforts at bioinspired materials and designs are also discussed.

Young Professional Tutorial Luncheon Lecture

Date: Tuesday, March 13, 2018
Luncheon: Noon to 12:45 p.m. (Tickets can be purchased through the Meeting Registration form)
Lectures: 12:45 p.m. to 2:00 p.m. (No tickets required)

Speaker: Sung Woo Nam, University of Illinois
Lecture Title: "Designing and Shaping Nano-materials via Controlled Mechanical Deformations"
Abstract: 
Mechanical deformations, such as buckling, crumpling, wrinkling, collapsing, and delamination, are usually considered threats to mechanical integrity which are to be avoided or minimized in the design of materials and structures. However, if materials systems and applied stresses are carefully controlled, such mechanical instabilities can deterministically create functional morphologies that can enable powerful new functions. In particular, in atomically-thin nano-material systems with ultralow bending stiffness, such as graphene, mechanical deformations enable new structural properties and device-level functionalities which surpass the limits of bulk material systems. In this presentation, the speaker will share a vision on how controlled mechanical deformations can be used to enable new functional morphologies in materials and what can be learned by fusing principles of design, mechanics, and materials.

Speaker: Cong Wang, Northeastern University, Shenyang, China
Lecture Title: "Oxide Metallurgy: From Concept to Practice" 
Abstract: The toughness-strength trade-off has long puzzled the materials community, particularly for the structural alloy R&D tribes. Strengthening is generally achieved through the controlled creation of internal defects and boundaries to obstruct dislocation motion. However, such strategies may lead to deteriorated toughness and conductivity as well as corrosion resistance. Recently, thanks to the salient progress in inclusion engineering in steels, Oxide Metallurgy, effectively utilizing inclusion/microstructure interactions in concurrent ways, has shown great promises in reshaping the paradox. In this talk, we offer an integrated view of inclusion evolution, during refining, continuous casting, rolling as well as heat-treating, and present new perspectives challenging the hypotheses governing behaviors of outstanding features, such as acicular ferrite formation as well as austenite growth inhibition. Finally, we will demonstrate how the novel concept morphs into practice via applications in shipbuilding steels.

Japan Institute of Metals International Scholar

Speaker: Atsushi Unemoto, Hitachi Ltd. 
Lecture Title: "Advanced Study on Complex Hydrides for All-Solid-State Secondary Batteries"
Date: Tuesday, March 13
Time: 3:55 p.m. to 4:15 p.m.
Location: Phoenix Convention Center, Room 229B
About the Presentation: Recently, complex hydrides, possessing fast ionic conductivity and electrochemical stability, are considered as a new electrolyte family for all-solid-state lithium rechargeable batteries, beyond the classical oxide and sulfide electrolytes. Unemoto's research group first succeeded in operation of all-solid-state battery that uses a LiBH4 complex hydride electrolyte together with a TiS2 positive and a Li negative electrodes in 2014. The study was then extended to enhance its energy density. A high-capacity sulfur positive electrode, exhibiting an order greater capacity than conventional oxide positive electrodes, was then incorporated into the all-solid-state battery. High discharge capacity of over 730 mAh g-1 was successfully demonstrated for 45 cycles. Additionally, operation of high-temperature durable all-solid-state batteries was successfully demonstrated at 423 K, as a result of an industry-academia partnership project between Tohoku University and Hitachi, Ltd. In the given presentation, R&D history related to complex hydride electrolytes and their battery application will be reviewed.
About the Speaker: Atsushi Unemoto is a researcher with the Research & Development Group at Hitachi Ltd. in Japan. He holds bachelors, masters, and doctoral degrees from Tohoku University and has been an assistant professor and a lecturer in the Graduate School of Engineering, the Institute of Multidisciplinary Research for Advanced Materials, and the Advanced Institute for Materials Research at Tohoku University. He has worked with Hitachi Ltd. since 2016. His research is in the field of solid-state ionics and solid-state electrochemistry, and he is currently involved in R&D of materials and devices relevant to lithium rechargeable batteries.