通識認證講座：中子散射技術於先進高熵合金之設計及理論
2023.10.13
題目：中子散射技術於先進高熵合金之設計及理論
通識教育講座領域：自然與工程科學
主講人：Peter K. Liaw
現職：Department of Materials Science and Engineering, The University of Tennessee, Knoxville, USA
演講者學經歷：
Peter K. Liaw went to Chiayi High School and obtained his B.S. in Physics from the National Tsing Hua University, Taiwan, and his Ph.D. in Materials Science and Engineering from Northwestern University, US, in 1980. After working at the Westinghouse Research and Development (R&D) Center for thirteen years, he joined the faculty and became an Endowed Ivan Racheff Chair of Excellence in the Department of Materials Science and Engineering at The University of Tennessee (UT), Knoxville in March 1993. He has worked in the areas of fatigue, fracture, nondestructive evaluation, and life-prediction methodologies of structural alloys and composites. Since joining UT, his research interests include mechanical behavior, neutron and synchrotron diffraction, bulk-metallic glasses, high-entropy alloys, and processing of high-temperature alloys and ceramic-matrix composites and coatings, with the kind help of his team members and colleagues at UT and Oak Ridge National Laboratory, and throughout the world. He has been a 2022 Highly Cited Researcher from Clarivate™. He has published one thousand, two hundred, and sixty-one journal papers, including papers in Science, Nature Materials, Nature Communications, Science Advances, Advanced Materials, etc., edited and written sixty-two books and book chapters, and presented numerous plenary, keynote, and invited talks at various national and international conferences. He was awarded the Royal E. Cabell Fellowship at Northwestern University. He is the recipient of numerous “Outstanding Performance” awards from the Westinghouse R&D Center. He was the Chairman of The Minerals, Metals and Materials Society (TMS) “Mechanical Metallurgy” Committee, and Chairman of the American Society for Metals (ASM) “Flow and Fracture” Committee. He has been the Chairman and Member of the TMS Award Committee on “Application to Practice, Educator, and Leadership Awards.” He is a Fellow of ASM, MRS, and TMS. He has been given the Outstanding Teacher Award, the Moses E. and Mayme Brooks Distinguished Professor Award, the Engineering Research Fellow Awards, the National Alumni Association Distinguished Service Professor Award, the L. R. Hesler Award, and the John Fisher Professorship at UT, the TMS Distinguished Service Award, and a 2020 TMS Symposium dedicated to him. He has been the Director of the National Science Foundation (NSF) Integrative Graduate Education and Research Training (IGERT) Program, the Director of the NSF International Materials Institutes (IMI) Program, and the Director of the NSF Major Research Instrumentation (MRI) Program at UT. Several of his graduate students have been given awards for their research, papers, and presentations at various professional societies and conferences. Moreover, his students teach and conduct research at universities, industries, and government laboratories.
時間：112年 10月 30日(一) 上午 10:00 – 12 :00
地點：電機館1樓靄雲廳(92119)
報名網址：https://activity.ncku.edu.tw/index.php?c=apply&no=13924
演講摘要：
Recently, exceptional properties that are continuously found in an intriguing new class of metallic structural materials, high-entropy alloys (HEAs), demonstrate their great potential for engineering applications particularly in extreme environments where conventional alloys reach their limits. The concept of HEAs has revolutionized traditional alloy design, in particular in terms of their endless composition space, which meanwhile brings a new challenge of how to effectively design HEAs with targeted properties. In this presentation, we will give an introduction on HEAs first. Following that, we will focus on the design of advanced precipitate-strengthened lightweight as well as fatigue-resistant HEAs by integrating computational methods and advanced experimental techniques, such as neutron scattering. We will discuss how to design high-strength, low-cost, and lightweight and fatigue-resistant HEAs by the Calculation of Phase Diagrams (CALPHAD)-based high-throughput computational method (HTCM). A fundamental understanding of the precipitation-strengthening, order-disorder-transition, and fatigue behavior in these newly designed HEAs is revealed by in-situ neutron scattering, advanced microscopies, Monte-Carlo (MC) simulations, and ab initio molecular dynamics (AIMD). This study provides in-depth insights into the discovery of advanced structural materials by the HEA concept. Moreover, the potential applications of HEAs will be discussed.
通識教育講座領域：自然與工程科學
主講人：Peter K. Liaw
現職：Department of Materials Science and Engineering, The University of Tennessee, Knoxville, USA
演講者學經歷：
Peter K. Liaw went to Chiayi High School and obtained his B.S. in Physics from the National Tsing Hua University, Taiwan, and his Ph.D. in Materials Science and Engineering from Northwestern University, US, in 1980. After working at the Westinghouse Research and Development (R&D) Center for thirteen years, he joined the faculty and became an Endowed Ivan Racheff Chair of Excellence in the Department of Materials Science and Engineering at The University of Tennessee (UT), Knoxville in March 1993. He has worked in the areas of fatigue, fracture, nondestructive evaluation, and life-prediction methodologies of structural alloys and composites. Since joining UT, his research interests include mechanical behavior, neutron and synchrotron diffraction, bulk-metallic glasses, high-entropy alloys, and processing of high-temperature alloys and ceramic-matrix composites and coatings, with the kind help of his team members and colleagues at UT and Oak Ridge National Laboratory, and throughout the world. He has been a 2022 Highly Cited Researcher from Clarivate™. He has published one thousand, two hundred, and sixty-one journal papers, including papers in Science, Nature Materials, Nature Communications, Science Advances, Advanced Materials, etc., edited and written sixty-two books and book chapters, and presented numerous plenary, keynote, and invited talks at various national and international conferences. He was awarded the Royal E. Cabell Fellowship at Northwestern University. He is the recipient of numerous “Outstanding Performance” awards from the Westinghouse R&D Center. He was the Chairman of The Minerals, Metals and Materials Society (TMS) “Mechanical Metallurgy” Committee, and Chairman of the American Society for Metals (ASM) “Flow and Fracture” Committee. He has been the Chairman and Member of the TMS Award Committee on “Application to Practice, Educator, and Leadership Awards.” He is a Fellow of ASM, MRS, and TMS. He has been given the Outstanding Teacher Award, the Moses E. and Mayme Brooks Distinguished Professor Award, the Engineering Research Fellow Awards, the National Alumni Association Distinguished Service Professor Award, the L. R. Hesler Award, and the John Fisher Professorship at UT, the TMS Distinguished Service Award, and a 2020 TMS Symposium dedicated to him. He has been the Director of the National Science Foundation (NSF) Integrative Graduate Education and Research Training (IGERT) Program, the Director of the NSF International Materials Institutes (IMI) Program, and the Director of the NSF Major Research Instrumentation (MRI) Program at UT. Several of his graduate students have been given awards for their research, papers, and presentations at various professional societies and conferences. Moreover, his students teach and conduct research at universities, industries, and government laboratories.
時間：112年 10月 30日(一) 上午 10:00 – 12 :00
地點：電機館1樓靄雲廳(92119)
報名網址：https://activity.ncku.edu.tw/index.php?c=apply&no=13924
演講摘要：
Recently, exceptional properties that are continuously found in an intriguing new class of metallic structural materials, high-entropy alloys (HEAs), demonstrate their great potential for engineering applications particularly in extreme environments where conventional alloys reach their limits. The concept of HEAs has revolutionized traditional alloy design, in particular in terms of their endless composition space, which meanwhile brings a new challenge of how to effectively design HEAs with targeted properties. In this presentation, we will give an introduction on HEAs first. Following that, we will focus on the design of advanced precipitate-strengthened lightweight as well as fatigue-resistant HEAs by integrating computational methods and advanced experimental techniques, such as neutron scattering. We will discuss how to design high-strength, low-cost, and lightweight and fatigue-resistant HEAs by the Calculation of Phase Diagrams (CALPHAD)-based high-throughput computational method (HTCM). A fundamental understanding of the precipitation-strengthening, order-disorder-transition, and fatigue behavior in these newly designed HEAs is revealed by in-situ neutron scattering, advanced microscopies, Monte-Carlo (MC) simulations, and ab initio molecular dynamics (AIMD). This study provides in-depth insights into the discovery of advanced structural materials by the HEA concept. Moreover, the potential applications of HEAs will be discussed.