ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
In order to understand the microstructure changes during welding processes , kineticinformation about the phase transformation is essential. In our research group, in-situ observationsystems consisting of undulator beam and imaging plate and two dimensional pixel detector haverecently been used. These make it possible that phase transformation can be identified in real-timeunder the condition of directional-oriented solidification . In the present work, a combination ofanalyzing method: the in-situ observation system by X-ray diffraction technique using intensesynchrotron radiation, and morphological observation by high-temperature laser scanning confocalmicroscopy is suggested to analyze the phase transformation during the welding process. Using theresults acquired by these analysis methods, phase evolution of hypereutectoid carbon steel, duringfusion welding was analyzed. The primary phase was directly identified as an austenite phase.Precipitation of pearlite phase was observed followed by the martensitic transformation
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/15/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.539-543.3820.pdf
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