Consistent system for fatigue test and observation of micro structures with scanning electron microscope

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H03942
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Intelligent mechanics/Mechanical systems
• Research Institution: The University of Tokyo
• Principal Investigator: Tsuchiya Kensuke 東京大学, 生産技術研究所, 准教授 (80345173)
• Co-Investigator(Kenkyū-buntansha): 柿内 利文 岐阜大学, 工学部, 准教授 (20452039)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 疲労試験 / 微小構造体 / 電子顕微鏡 / マイクロマニピュレータ / 力センサ

Outline of Final Research Achievements

We developed a micro-scale tensile fatigue test system, which allows testing micro specimens fabricated from bulk materials. The system consists of a probe attached to a micro-manipulator, a micro-manipulator for accurate initial positioning and applying tensile stress, and a scanning electron microscope for observation. This paper reports the design of the system and the result of tensile tests and tensile fatigue tests on the specimens which are made of coarse-grained magnesium alloy. The tensile tests suggests that the system can apply accurate tensile stress to the micro specimens and its tensile strength is much larger than that of bulk materials. In addition the tensile fatigue test indicates that the system can apply intended cyclic tensile stress.

Free Research Field

機械工学