Simultaneous characterization of precipitates and matrix in interphase precipitation using small-angle neutron scattering and Bragg-edge transmission analysis

2016 Fiscal Year Final Research Report

• Project/Area Number: 26870313
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Quantum beam science; Material processing/Microstructural control engineering
• Research Institution: Kyoto University
• Principal Investigator: Oba Yojiro 京都大学, 原子炉実験所, 助教 (60566793)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 小角散乱 / ブラッグエッジ / 相界面析出 / 鉄鋼 / 中性子 / 放射光

Outline of Final Research Achievements

To investigate interphase precipitation in steel, simultaneous analyses of small-angle neutron scattering (SANS) and Bragg-edge transmission were developed. SANS and Bragg-edge give the information about precipitation of carbide nanoparticles and ferrite matrix, respectively. In addition, simultaneous measurements of small-angle X-ray scattering (SAXS) and X-ray diffraction (XRD) using synchrotron radiation were performed. From the results of the in-situ measurements, the precipitation of the carbides and the transformation of the ferrite matrix were characterized.

Free Research Field

小角散乱、金属材料、ブラッグエッジ