An Observation of Micro-crack in Transformation-induced Plasticity-assisted Multiphase Steel

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概要

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• In a transformation-induced plasticity (TRIP)-assisted multiphase steel, the phases around a micro-crack at the initial stage of cracking during wire drawing were observed by a focused ion beam (FIB), transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS). A novel FIB method, which is termed as “In-plane lift-out” technique, was applied to obtain an overall plan-view of the TEM specimen containing the micro-crack. The equilibrium concentration ratio of Mn in austenite and ferrite was calculated for the alloy and compared with the EDS line profile of Mn concentration across the micro-crack in the TEM specimen. The interface between the ferrite and martensite was identified as the crack initiation site during drawing of this multi-phase steel.

• 社団法人 日本鉄鋼協会の論文
• 2008-10-15

著者

• LEE Sang

  Department of Pulmonary and Critical Care Medicine, Gachon University, Gil Medical Center

• Lee Seung

  Materials Technology & Analysis Team, Advanced Technology Center, Hyundai-Kia Motors

• Kang Suk

  Department of Materials Science and Engineering, Seoul National University

• Han Heung

  Department of Materials Science and Engineering, Seoul National University

• Oh Kyu

  Department of Materials Science and Engineering, Seoul National University

• Lee Hu-Chul

  Department of Materials Science and Engineering, Seoul National University

• Lee Seung

  Materials Technol. & Analysis Team Advanced Technol. Center Hyundai-kia Motors

• Han Heung

  Seoul National Univ. Seoul Kor

• Han Heung

  Department Of Materials Science And Engineering Seoul National University

• Kang Suk

  Department Of Applied Physics Faculty Of Engineering Osaka University

• Lee H‐c

  Seoul National Univ. Seoul Kor

• Lee Hu-chul

  Department Of Materials Science And Engineering Seoul National University

• Oh Kyu

  School Of Materials Science And Engineering College Of Engineering Seoul National University

• Oh Kyu

  School Of Materials Science And Engineering Seoul National University

• Oh Kyu

  Department Of Bioscience And Biotechnology Institute Of Bioscience Sejong University

• Lee Sang

  Department Of Advanced Materials Science And Engineering Mokpo National University

• Oh Kyu

  School Of Materials Science And Engineering And Research Institute Of Advanced Materials Seoul Natio

• Oh Kyu

  School Of Materials Science And Engieering Seoul National University

• Oh Kyu

  School Of Materials Science & Engineering Secoul National University

• Oh Kyu

  School Of Materials Science And Engineering Seoul National Univ.

• Lee Seung

  Materials Technology & Analysis Team Advanced Technology Center

• Kang Suk

  Department Of Materials Science And Engineering Seoul National University

• Lee Hu‐chul

  Department Of Materials Science And Engineering Seoul National University

• Lee H‐c

  Department Of Materials Science And Engineering Seoul National University

• LEE Sang

  Department of Acupuncture & Moxibustion, College of Oriental Medicine, Kyung Hee University

• HAN Heung

  Department of Materials Science and Engineering and RIAM, Seoul National University

• Han Heung

  Department of Materials Science & Engineering and Center for Iron & Steel Research, RIAM, Seoul National University

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