ASAZUMA Akari and TSUCHIDA Yoshiki, first-year master’s students in the Mechanical Engineering Program at the Graduate School of Science and Technology (both members of Associate Professor ARIKAWA Shuichi’s Materials System Lab), received the Branch Chief Award at the Kanto Branch Student Workshop of the Society of Materials Science, Japan. The event took place at the Institute of Science Tokyo's Okayama campus on October 26, 2024, where ASAZUMA was honored for an oral presentation and TSUCHIDA for a poster presentation.
Oral Presentation winner: ASAZUMA Akari
Presentation title: Effect of ultrasonic vibration on edge dislocations in BCC iron
Content: The softening of metals under ultrasonic vibration is a known phenomenon, but its underlying mechanism remained unexplained. The research conducted was to reveal the mechanism through molecular dynamics simulations, and it was clarified that atoms in the vicinity of crystal defects in metals, known as edge dislocations, absorb energy from ultrasonic vibration.
Poster Presentation winner: TSUCHIDA Yoshiki
Presentation title: Study on the operating performance of structures contracted by sound waves
Content: The research focused on an actuator driven by sound waves, in which part of the structure resonates at a specific frequency, causing the entire structure to contract. The mechanical behavior was analyzed to enhance its operating performance.