The Effect of Primary Ferrite on Bainitic Transformation, Microstructure, and Properties of Low Carbon Bainitic Steel
METAL SCIENCE AND HEAT TREATMENT(2020)
摘要
The effects of primary ferrite on bainitic transformation, microstructure, and properties of low carbon bainitic steel Fe – 0.22C – 2.01Si – 2.20Mn – 0.22Mo are investigated by metallographic and dilatometric methods. It is found that the effect of primary ferrite on subsequent bainite formation appears as a change in the ratio of two competing processes: advance of the austenite–ferrite interface and its retardation due to retained austenite stability.
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关键词
primary ferrite,bainitic transformation,retained austenite,microstructure,mechanical properties
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