Study on Normalizing Process for 100mm E40 Heavy Plate

Xiang Yu Xu; Xue Min Wang

doi:10.4028/www.scientific.net/AMR.765-767.197

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 765-767Study on Normalizing Process for 100mm E40 Heavy...

Study on Normalizing Process for 100mm E40 Heavy Plate

Abstract:

The influence of chemical composition, heat treatment process and microstructure on the properties of E40 heavy plate have been studied. After normalization process of thick TMCP plate for high strength hull steel, the structure is substantially more regular, but the strength decreases. The former microstructure consists of lath-like bainite, but after heat treatment it consists of ferrite and pearlite. The mechanical properties meet the requirement of GB 712 prescript. With cooling rate decreasing, grain size in normalizing samples increases gradually, and the strength decreases. With the holding time extending, grain growth is not obvious, and the strength decreases. The best normalizing temperature is 910 °C, and the best holding time is about100 min.

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Periodical:

Advanced Materials Research (Volumes 765-767)

Pages:

197-201

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.765-767.197

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Online since:

September 2013

Authors:

Xiang Yu Xu, Xue Min Wang

Keywords:

Heavy Plate, Microstructure, Normalization, Property

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