Processing / Manufacturing Structural Nanomaterials

Date:	Sunday, November 9, 2003
Time:	8:30AM - 5:00PM
Presented by:	Joanna Groza, University of California John Vetrano, Pacific Northwest National Lab
Sponsored by:	ASM International: Materials Science Critical Technology Sector TMS Structural Materials Division
Fees:	Until October 14 - Members $475, Non-members $560 After October 14 - Members $525, Non-members $610

Who Should Attend: This one-day course is intended for managers, supervisors, engineers, and scientists employed in either research or production of metal, intermetallic, ceramic, and composite nanostructures in a variety of industries (aerospace, automotive, agriculture, electronics, health, transport, energy, mining, defense). It is intended for anyone who currently uses (or plans to) this revolutionary technology to fabricate parts/structures that will tap the potential of ultrahigh strength materials. Managers will understand how to use “nanos” in traditional industries and their impact on the competitive business landscape. This short course is also highly recommended to current students interested in learning about process/manufacturing specifics to fabricate structural nanocrystalline parts.

Course Overview: This course is designed to teach the fundamentals of the specific processing-structure relations in nanomaterials capable to achieve unique properties (e.g., ultrahigh mechanical strength, fatigue and wear resistance, and extensive formability). Processing at all levels (nano, micro, macro), from raw materials to final parts, thermomechanical processing, net shape, contamination, defects, phase stability, microstructure characterization, performance, and applications of this new class of materials will be addressed. One step (intense plastic deformation such as equal channel angular forming and high-pressure torsion straining) and two step (powder based processing, reaction sintering) processes will be emphasized to bring the dramatic change in properties of usual (e. g., steels, nonferrous alloys) or more exotic materials. The resulting payoff will be a better understanding of the ways to use existing resources to fabricate parts with higher performance and greater efficiency and to provide structural nanomaterials a wider acceptance into traditional industries.

About the Presenters:

Joanna R. Groza holds a Master of Science with honors in metallurgical engineering, a Ph.D. in Physical Metallurgy and is a registered professional engineer in California. She worked in industry, mainly in powder metallurgy, gaining experience with non-conventional bonding and consolidation techniques. Her research at the University of California at Davis (in the last 12 years) is centered on novel processing techniques for sintering, nanosize materials consolidation, rapid manufacturing, microstructure-property correlation, and advanced materials design. She authored (or co-authored) more than 80 technical papers, invited lectures, three book chapters on nanomaterials processing and properties, and a few chapters in the ASM Handbook, Vol. 7 (Powder Metallurgy).

The main research thrust for John Vetrano has been investigating the relationship between microstructure and properties in metal, ceramic, and composite materials. His primary research tool has been the transmission electron microscope, but he has also utilized surface science techniques and mechanical properties testing to evaluate and understand these materials. His research projects at PNNL have been both fundamental and applied in nature and include superplasticity, radiation effects, general deformation structure, stress corrosion cracking, equal channel angular extrusion, and recrystallization. He received his Ph.D. from the University of Illinois at Urbana-Champaign in 1990, did post-doctoral work at the Max Planck Institut in Stuttgart, Germany, and then came to PNNL in 1991 in the Materials Interfaces group. He is active in TMS and has been a committee chairman there. Dr. Vetrano has authored over 50 publications.

Texture and Anisotropy For the Materials Professional

Date:	Sunday, November 9, 2003
Time:	8:30AM - 5:00PM
Presented by:	Anthony D. (Tony) Rollett, Carnegie Mellon University
Sponsored by:	TMS Materials Processing and Manufacturing Division
Fees:	Until October 21 - Members $475, Non-members $560 After October 21 - Members $525, Non-members $610

Who Should Attend: Have you always wondered what “pole figures” were all about? Have you wondered what people were actually talking about when they mention “texture”? This course will bring you up to speed on texture (i.e. crystallographic preferred orientation) and anisotropy (e.g., different yield strengths in different directions). You will learn how to read pole figures and orientation distribution plots. The meaning of Euler angles and texture components will be explained. Basic concepts in anisotropic material properties such as modulus, strength, r-value, and formability will be related to texture. The main measurement techniques such as X-ray diffraction and automated electron-back-scatter-diffraction will be explained.

If you work with polycrystalline materials, the chances are good that they have some degree of texture and therefore some anisotropy. This is particularly true of sheet steels where the highest grades have high r-values and thus high degrees of texture. Coatings often have significant degrees of texture that affect their properties. Thus, anyone who needs to understand how to measure texture and what tools are available to quantify it (e.g., popLA) will find this useful. The first offering of this course in 2002 attracted engineers from industry, postdocs from universities, and researchers from national laboratories. A background in Materials Science & Engineering will be assumed (or some knowledge of crystal structure and diffraction).

Course Overview: Texture-anisotropy-plasticity relationships are being investigated in a wide range of materials. This field has been rejuvenated recently by the advent of Orientation Imaging Microscopy, on-line texture measurement, and the ability to apply personal computers to the analysis of texture data. Control of texture for formability and other properties is still a significant issue for metals-based industries, including the steel industry. Many materials are highly anisotropic and yet conventional processing fails to take the opportunity to engineer this aspect of materials. A fundamental theme that connects the study of microstructure and mechanical properties is the understanding of how microstructure evolves during deformation processing and how it influences the properties. The course will cover topics such as pole figures, orientation distributions, texture components, fiber textures, orientation imaging microscopy, elastic and plastic anisotropy, together with a demonstration of how to analyze pole figure data.

About the Presenter:

Professor Anthony D. Rollett has been a professor in the department of Materials Science& Engineering at Carnegie Mellon University since 1995. He was department head from 1995-2000. Prior to joining CMU, Prof. Rollett was with the Los Alamos National Laboratory from 1979 to 1995. His current research interest focuses on the relationship of mechanical properties to microstructure and on improving our understanding of how microstructures evolve. The use of computers is emphasized for processing large volumes of data and for simulating the behavior of materials, from grain growth to plastic flow. He is leading a project on anisotropic interfaces and their impact on microstructural evolution as part of the DOE’s Computational Materials Sciences Network. Prof. Rollett remains very active within TMS, having served on numerous technical committees and as JOM advisor. In addition, he publishes actively in a wide range of technical journals.

Rolls For the Metalworking Industries

Fees:

Until October 21 - Members $375, Non-members $570, Students $190 After October 21 - Members $425, Non-members $620, Students $240

The ISS short course on rolls for the metalworking industry will focus on the production methods of rolls and methods of use of rolls in many mills. The course is intended for both roll makers and roll users, and those new to the industry will benefit by using the knowledge to jumpstart their profession in rolls.

Metallurgy and Processing of LC/ULS Steel Sheet

Fees:

Until October 21 - Members $375, Non-members $570, Students $190 After October 21 - Members $425, Non-members $620, Students $240

Phase Transformers in Steels

Fees:

Until October 21 - Members $375, Non-members $570, Students $190 After October 21 - Members $425, Non-members $620, Students $240