Effect of Annealing Temperature on Deformed Microstructure of Low Carbon Martensite

Abstract:

In this paper, a new type steel plate with nano-layered martensite lath structure was produced by heavy cold-rolling. After rolling, subsequent annealing has great effect on the deformed martensite morphology and grain refinement. Microstructure recrystallizing course have occurred after long time annealing at 350°C. The recrystallization activation energy is 151 kJmol-1. The ultrafine ferrite grains (average grain size about 317nm), nano-carbides precipitated uniformly were seen in the specimen annealed at 500 °C. Annealing at and above 600 °C resulted in coarse ferrite grains with spheroidized coarse carbides, causing grain growth.

• Periodical: Advanced Materials Research (Volume 213)
• Pages: 143-146
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.213.143
• Online since: February 2011
• Authors: Jun Zhao, Yong Ming Yang, Jiu Chuan Chen, Quan Xing Wen, Li Tao Zhang, Shou Xue Zhang, Zhao Kun Ren, Xiang Nan Wu, Yu Wei Gao
• Keywords: Annealing Temperature, Deformed Microstructure, Low Carbon Martensite

References

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