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| Comparative Study on the Microstructure and Corrosion Properties of DSS 2304 Clad Plates at Two Different Finishing/Cooling Temperatures |
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| DOI：10.7643/issn.1672-9242.2022.10.013 |
| KeyWord:2304/Q345C clad plate hot rolling process shear strength intergranular corrosion resistance pitting corrosion resistance electrochemical corrosion. |
| Author | Institution |
| ZHANG Xin-yu |
Luoyang Ship Material Research Institute, Henan Luoyang , China |
| ZHA Xiao-qin |
Luoyang Ship Material Research Institute, Henan Luoyang , China;Henan Key Laboratory of Technology and Application of Structural Materials for Ships and Marine Equipments, Henan Luoyang , China |
| GAO Ling-qing |
Luoyang Ship Material Research Institute, Henan Luoyang , China;Henan Key Laboratory of Technology and Application of Structural Materials for Ships and Marine Equipments, Henan Luoyang , China |
| ZHANG Wen-li |
Luoyang Ship Material Research Institute, Henan Luoyang , China |
| MA Yun-fei |
College of Materials Science and Engineering, Henan University of Science and Technology, Henan Luoyang , China |
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| Abstract: |
| This paper aims to take comparative study on the corrosion resistance properties of two 2304/Q345C hot-rolled duplex stainless steel clad plates with different finishing/cooling temperatures by chemical immersion tests and electrochemical tests. in addition, the metallographic microstructure and TEM images analysis were also conducted. The results show that compared with the clad plate at finishing/cooling temperature 950/920 ℃ and the same other hot-rolled parameters, the ferrite content in cladding is higher at finishing/cooling temperature 1 050/1 020 ℃,the austenite/ferrite phase boundary of clad plate is more regular, and the dislocation density is lower with no precipitate around phase boundary. Besides, the interfacial shear strength is higher at 1 050/1 020 ℃, and the properties of pitting corrosion, intergranular corrosion resistance, and corrosion electrochemical performance of cladding layer are excellent. |
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