Properties of annealed high strength steels deformed by repetitive side extrusion process

Koshiro Aoki, Youichiro Kimura, Yousuke Asada, Akira Azushima

研究成果: Conference article査読

8 被引用数 (Scopus)


In order to obtain high-strength materials, several plastic deformation processes are effective. The aim of this study is to obtain high strength material with ductility. To put it definitely, the carbon steels with various carbon contents were deformed by the repetitive side extrusion process and heat treatment, and the properties of materials such as Vickers hardness, tensile strength and microstructure observation were investigated. It was possible to deform by repetitive side extrusion process without any failure for all steels. Vickers hardness was increased a value of 100 comparison to initial hardness for all carbon steels after 1 pass, and hardness increased with increasing number of passes. The microstructures of all steels were refined by deformed structure. After heat treatment, the tensile strength became lower and total elongation increased with decreasing hardness. The uniform elongation of tensile experiments increased with increasing heat treatment time on all materials.

ジャーナルMaterials Science Forum
出版ステータスPublished - 2003 1月 1
イベントThermec 2003 Processing and Manufacturing of Advanced Materials - Madrid, Spain
継続期間: 2003 7月 72003 7月 11

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学


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