In-Situ Observation for Weld Solidification in Stainless Steels Using Time-Resolved X-ray Diffraction

Mitsuharu Yonemura; Takahiro Osuki; Hidenori Terasaki; Yuichi Komizo; Masugu Sato; Akiko Kitano

doi:10.2320/matertrans.47.310

In-Situ Observation for Weld Solidification in Stainless Steels Using Time-Resolved X-ray Diffraction

Mitsuharu Yonemura, Takahiro Osuki, Hidenori Terasaki, Yuichi Komizo, Masugu Sato, Akiko Kitano

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Keywords: welding, steels, phase transformation, rapid solidification, in situ time-resolved X-ray diffraction

JOURNAL FREE ACCESS

2006 Volume 47 Issue 2 Pages 310-316

DOI https://doi.org/10.2320/matertrans.47.310

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Abstract

Characterizing of directional solidification mode of Fe–Cr–Ni alloys during welding was performed using intense synchrotron radiation probe. Consequently, the crystal growth in the rapid solidification process was revealed in detail and the peak profile was systematically analyzed in order to acquire the essential information for controlling the weld microstructure. Then, the crystallization timing of the primary and secondary phases was discussed. Furthermore, the possibility of the lattice rotation to commensurate (i) each dendrite and (ii) crystallites in the dendrites is suggested.

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