Elucidation of metallurgical factors for controlling friction coefficient through nanocrystallization in metals

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H04155
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Material processing/Microstructural control engineering
• Research Institution: Toyohashi University of Technology
• Principal Investigator: TODAKA YOSHIKAZU 豊橋技術科学大学, 工学(系)研究科(研究院), 教授 (50345956)
• Co-Investigator(Renkei-kenkyūsha): ADACHI Nozomu 豊橋技術科学大学, 大学院工学研究科, 助教 (00758724) ; HINO Masahiro 京都大学, 原子炉実験所, 准教授 (70314292) ; MURO Takayuki 公益財団法人高輝度光科学研究センター, 利用研究促進部門, 主幹研究員 (50416385)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: トライボロジー / 構造・機能材料 / 組織制御 / 格子欠陥 / 巨大ひずみ加工

Outline of Final Research Achievements

The effect of lattice defects on the tribological behavior for low / high friction coefficient under lubricant was investigated in the nanostructured pure Fe produced by heavy plastic deformation or physical vapor deposition methods. In the nanostructured pure Fe with high-density of lattice defects (grain boundary, dislocation and so on), the tribological behavior was improved in comparison with the conventional pure Fe. This phenomenon occurs by controlling microstructure in materials irrespective of production methods.

Free Research Field

金属材料工学