Role of Pre-deformation in Age Hardening of a Niobium-microalloyed Steel

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概要

• 論文の詳細を見る

• The effect of pre-deformation on the age hardening of a niobium-microalloyed steel is investigated by virtue of mechanical testing in conjunction with microstructural observations. The steel is aged at three temperatures 600°C, 640°C and 680°C, respectively, after solution-treated at 1200°C. The precipitation of Nb(C,N) is markedly accelerated by a pre-deformation of 15% prior to ageing, resulting in very fine particles being formed and a considerable increase in the strength of the steel with no large decrease in the ductility. Compared with the hot-rolled state, the yield strength of the deformed steel increases by about 280 MPa while that of the undeformed steel only by about 60 MPa after peak-aged at 640°C. Overall, the yield strength of the deformed steel may reach about 710 MPa with an elongation of about 19%.

• The Iron and Steel Institute of Japanの論文
• 2005-03-15

著者

• Liu J.

  School Of Applied Chemical Engineering Pukyong National University

• Weng L.-q.

  Department Of Materials Science And Engineering Shenzhen Graduate School Harbin Institute Of Technology Shenzhen University Town

• YUAN Z.-X.

  School of Materials and Metallurgy, Wuhan University of Science and Technology

• SONG S.-H.

  Department of Materials Science and Engineering, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen University Town

関連論文

• REFINEMENTS OF THE HARDY AND MORGAN UNCERTAINTY PRINCIPLES
• Quality Determination of Steel Surfaces Based on Best Feature Selection
• Role of Pre-deformation in Age Hardening of a Niobium-microalloyed Steel

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