报告题目：Methodology of science and engineering—Part 2: My research experiences（科学方法论－第二节：科研之路）
报告人：Prof.Kiyoshi Yokogawa（日本产业技术综合研究所）
报告时间：2023年9月24日下午14:30——17:00
会议方式：腾讯会议（会议号：428-7604-8005）/ 29号楼412室
欢迎广大师生踊跃参加!
机械与汽车工程学院
2023年9月20日
报告摘要：
This lecture delineates my scholarly pursuits, aimed at enhancing students' academic trajectories. After obtaining my master's from Kyoto University, I researched the hydrogen reduction of iron ore and concurrently explored iron oxidation in a college. Transitioning to AIST's institute, I was commissioned to investigate hydrogen embrittlement (HE) under MITI's Sun Shine Project. It took some years to prepare the research of HE, then I used such a period to study the iron oxide whisker based on the research in the previous college, which is the on-the way research. This endeavor led to a significant discovery, earning me an accolade from the Japan Institute of Metals(JIM).
Over ten years, I studied steel's HE, culminating in my Ph.D. Along with my post-doctoral journey in the US collaborations on the H-II rocket program with NASDA was facilitated. Upon returning, I examined HE of Ni-based superalloys, resolving discrepancies with NASA's findings.
Subsequently, under MITI's World Energy NET Work (WE-NET) project, our team studied HE of austenitic stainless steels under frigid conditions, leading to the development of a novel HE testing apparatus. Concurrently, during the fuel cell vehicle (FCV) initiative, our focus was on HE analysis of potential FCV materials. Our insights significantly influenced governmental FCV regulations, earning me the Distinguished Works Prize from JIM in 2006.
Furthermore, ancillary research plays a pivotal role in scientific advancement, a topic I will further elucidate in this lecture.
报告人简介：
Kiyoshi Yokogawa，博士、日本产业技术综合研究所教授，氢脆领域的国际顶级专家，取得了一系列处于国际领先水平的研究成果：首次发现氢致微裂纹起源于应变诱导马氏体富集区和奥氏体富集区的边界，而非传统认为的应变诱导马氏体，为揭示亚稳态奥氏体不锈钢的氢脆机理奠定了重要基础；基于分子动力学，建立了高压氢气环境中Ni基金属材料的塑性变形分析模型；首次发现石墨化碳纳米结构的环状超结构和5 圆环原子图像，揭示了碳纳米纤维的结构。多次应邀到美国、德国、韩国讲学。在国际刊物发表高水平论文110余篇，获授权专利12项（其中美国专利3项，日本专利9项），出版相关专著6本。获日本金属学会突出贡献奖、韩国机械学会突出贡献奖。
