The .GAMMA..RAR..ALPHA. Transformation in Low Carbon Irons.

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概要

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• The influence of cooling rate on transformation temperatures in low carbon irons is reviewed. Plateaux are obtained in plots of transformation temperature <I>vs.</I>cooling rate. Comparison with later published TTT diagrams show that these plateaux correspond with the nose of 'c' curves on TTT diagrams. This leads to a proposed TTT diagram for iron. Transformations in Fe-Ni, Fe-Cr and Fe-C alloys, and low carbon irons are reviewed. The morphology and kinetics of the individual transformations, namely equi-axed ferrite, massive ferrite, bainitic ferrite, lath (massive) martensite and twinned martensite are then discussed. A recent theoretical treatment of the equi-axed ferrite transformation is summarised. This theory indicates that the kinetics of the equi-axed ferrite transformation is controlled by growth. Correlation is made between microstructures obtained in binary alloys and those obtained in Fe-Nb-C alloys and commercial HSLA steels.

• The Iron and Steel Institute of Japanの論文

著者

• Wilson E.

  Division of Materials and Environmental Engineering, School of Engineering, Sheffield Hallam University

関連論文

• The .GAMMA..RAR..ALPHA. Transformation in Low Carbon Irons.

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