AGMA 09FTM14-2009 pdf free.Design, Development and Application of New High – Performance Gear Steels.
New materials have historically been discovered either by chance or by intricate and costly cycles of trial and error, yielding a limited understanding of optimization and design. The limitations of the past approach are widely known, and numerous national studies over the past decade have consistently emphasized that traditional empirical material development methods have not kept pace with modem design-based product development efforts. One result is that a number of renowned materials companies have all but dropped their laboi– intensive internal research and development programs due to their prohibitive cost, and have instead refocused their efforts on reducing costs to manufacture arid process generic materials.
The use of powerful computational tools, property databases and intellectual expertise to computationally design and create new materials is a rapidly-emerging alternative approach. These techniques can be used to quickly and economically design and develop unique materials as integrated systems, in order to deliver optimal performance requirements for a given application. The Steel Research Group (SRG) at Northwestern University of Evanston, IL pioneered this technology beginning in the mid-i 980s. The strategic importance of computational materials design to the national mission was set forth in 2000 when the U.S. Presidents Office of Science and Technology identified computational design of materials as one of five critical technologies for the coming decade.[6]
QuesTek Innovations LLC (QuesTek) of Evanston, IL was founded in 1997 and is building on the SRG’s initial efforts by using QuesTeks proprietary Materials by Design® technology to computationally design many new materials, include iron-, copper-, aluminum-, nickel-, niobium-and titanium-based materials. Dr. Gregory B. Olson. the Wilson-Cook Chaired Professor in Engineering Design at Northwestern University’s Department of Materials Science and Engineering, is QuesTek’s Chief Science Officer and a founder of the company. QuesTek was one of only a few commercial firms highlighted in 2008 by the U.S. National Research Council as examples of firms utilizing Integrated Computational Materials Engineering (ICME) for Integrated Manufacturing. Materials, and Component Design.[7]
QuesTek’s computational materials design approach considers material design goals and desired performance in the context of a material system. This approach integrates materials process-structure and structure-property models in a systems-based framework in order to meet specific, defined engineering needs, and also address manufacturing processes and material qualification hurdles (including prediction of manufacturing variation). Like any other design effort, judicious decisions regarding key trade-offs among many competing requirements are often needed. Combinations of properties must be considered within specified process, cost, environmental and life-cycle constraints. Advanced computational modeling tools provide valuable scientific understanding in order to optimize such trade-offs in an efficient and knowledgeable manner, and typically provide enough fidelity to not only determine the favorability of one design solution over another but also to search for design optima in previously-unexplored terrain.AGMA 09FTM14 pdf free download.