J-GLOBAL ID:200904021473416596  Research Project code:0150002648 Update date:May. 14, 2003

Forming of super high strength steel from recycled iron

Study period:2000 - 2004
Organization (1):
Investigating Researcher (2):
Research overview:
Development of technology for using refine impurity elements, which are mixed during recycling processes of iron etc., so as to obtain a recycled steel with strength higher than 1.5 times as compared with conventional recycled steel etc., obtained by recycled material by conventional technology while reduce load on environment in purification stages and using stages. In this fiscal year, study on basic technique for reducing impurity segregation and forming ultra fine grains during solidification processes is performed by introducing a thin plate continuous casting machine with an electromagnetic stirring unit and a biaxial forging machine so as to obtain a high strength recycled thin film material from collected scrap. Examination on guide lines for improving quality of recycled materials also executed by introducing a temperature regulating unit for system on-line temperature control, a surface flaw detector for judging quality of products and a thin plate forming ability inspection unit. (k2001.10)
Keywords (5):
scrap ,  impurity ,  solidification ,  near-net shape ,  thermomechanical treatment
Project name: Study on Structural Materials for 21st Century
Project Organization (1):
  • 独立行政法人物質・材料研究機構
Researcher representative of the project  (1):
  • NAGAI Kotobu
Research program: Special Research and Development
Ministry with control over the research :
Ministry of Education, Culture, Sports, Science and Technology
Organization with control over the research:
National Institute for Materials Science
Research budget: 2000: \740,000,000

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