Title: Continuous cooling transformation of EQ70 steel for offshore platform
Abstract:The expansion curves of EQ70 steel for offshore platform were measured by using a DIL805A dilatometer,combined with metallography and Vickers hardness measurement,the curves of continuous cooling tran...The expansion curves of EQ70 steel for offshore platform were measured by using a DIL805A dilatometer,combined with metallography and Vickers hardness measurement,the curves of continuous cooling transformation(CCT) were determined for the steel.The results show that with the cooling rate below 0.5 ℃/s,the microstructure is mainly granular bainite,with the cooling rates between 0.5 ℃/s and 2 ℃/s,the microstructure consists of granular bainite and lath bainite,and martensite forms as the cooling rate is 2 ℃/s,when cooling rate is up to 5 ℃/s,the microstructure is completely martensite.Read More
Publication Year: 2013
Publication Date: 2013-07-01
Language: en
Type: article
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Cited By Count: 1
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