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Hot Working Characteristics of corrosion-resistant alloys G3 and 825

Journal of Iron and Steel Research International 2011年第4期18卷 68-72页

作者： YU Man LI Jing she TANG Hai-yan BAO Yao-zong School of Metallurgical and Ecological Engineering University of Science and Technology Beijing Beijing 100083 China Xinxing Ductile Pipe Co Ltd Wu'an 056300 Hebei China China Iron and Steel Research Institute Group Beijing 100081 China

The G3 and 825 alloys,with excellent combination of mechanical properties and corrosion resistance,can be used in hot,and acid *** simulation tests were conducted on the alloys G3 and 825 in the THERMECMASTOR-Z simulator,at temperature between 1030 and 1300 ℃,with strain rate from 1 to 50 s-1 and strain ε=*** variations of flow stress with deformation temperature and strain rate were *** of alloy structure with hot deformation and effect of strain rate on alloy dynamic recrystallization have been studied through microstructure observation by OM,SEM and ***,hot plasticity characteristics of alloy were analyzed by temperature-reduction of area *** results showed that available hot working temperature for G3,G3-Z and 825 was 1100 to 1240 ℃,1130 to 1220 ℃ and 1050 to 1240 ℃,*** reliable information on hot working in the alloy pilot production in steelwork is given.

关键词： corrosion-resistant alloy G3 825 stress-strain curve hot plasticity

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Data mining to effect of key alloying elements on corrosion resistance of low alloy steels in Sanya seawater environmentalloying Elements

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Journal of Materials Science & Technology 2021年第5期64卷 222-232页

作者： Xin Wei Dongmei Fu Mindong Chen Wei Wu Dequan Wu Chao Liu School of Automation and Electrical Engineering University of Science and Technology BeijingBeijing100083China Beijing Engineering Research Center of Industrial Spectrum Imaging University of Science and Technology BeijingBeijing 100083China SINOPEC Research Institute of Safety Engineering Qingdao266100China Beijing Advanced Innovation Center for Materials Genome Engineering Institute for Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing100083China

In this paper,the relationship model between seawater environment,chemical composition and corrosion potential of low alloy steel is established and the distribution of corrosion potential of low alloy steel with changes in key alloying elements is *** research was carried out with the following steps:Firstly,the relationship model between corrosion potential of low alloy steel and its influencing factors was established by data dimension reduction and artificial neural network(ANN).Secondly,key alloying elements of experimental steels were selected out by Pearson correlation analysis,then the corrosion resistance element model was visualized to show the effect of key alloying elements on corrosion potential of low alloy ***,corrosion potential of low alloy steel with the change of key alloying elements was classified and visualized by classification *** mining results can reflect the validity of the proposed mining methods to a certain extent and provide an intuitive data basis for the development of high-quality and low-cost low alloy steels.

关键词： Low alloy steel corrosion potential Key alloying elements corrosion-resistant alloy Artificial neural network Data-driven model

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