Development of rare earth-less thin walled spheroidal graphite cast iron of wall thickness variation portion of automotive parts

2014 Fiscal Year Final Research Report

• Project/Area Number: 24560904
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Metal making engineering
• Research Institution: Muroran Institute of Technology
• Principal Investigator: SHIMIZU Kazumichi 室蘭工業大学, 工学(系)研究科(研究院), 教授 (60206191)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: レアアースレス / 球状黒鉛鋳鉄 / 薄肉化

Outline of Final Research Achievements

The development of thin walled spheroidal graphite cast iron with reduced rare earth was aimed. We have focused on graphite spheroidizer contained rare earths be used during casting. Chill of research in thin walled, effect of casting defects on the fatigue strength, the impact test by test specimen was cut out from the entity production. Resulting in, even if the common rare earth to the graphite spheroidizer is contained 2.0% was reduced to 0.3%, it was possible to suppress deterioration in quality.

Free Research Field

工学