scholarly journals Microstructure Characterization and Mechanical Properties of Stainless Steel Clad Plate

Materials ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 509 ◽  
Author(s):  
Hao Li ◽  
Liyuan Zhang ◽  
Boyang Zhang ◽  
Qingdong Zhang
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Carbon Steel ◽  
Diffusion Layer ◽  
Mechanical Performance ◽  
Carbon Diffusion ◽  
Thickness Direction ◽  
Strong Bond ◽  
Microstructure And Mechanical Properties ◽  
Stainless Steel Clad Plate

In this study the microstructure and mechanical properties of stainless steel clad plate are researched. Due to element diffusion (Fe, Cr, Ni, Mn), a 20 μm thick diffusion layer is formed between stainless steel and carbon steel clad plate. The diffusion layer has a stable mechanical performance without obvious grain microstructure, and its internal mechanical properties show a graded change in the thickness direction. This is beneficial to a strong bond between stainless steel and carbon steel and the stable transition of mechanical performance in the thickness direction, as well as further carbon diffusion changes in the microstructure and mechanical properties near the diffusion layer of clad plate. Carburization stainless steel with a thickness of 150 μm is formed in the stainless steel side and decarburization carbon steel with a thickness of 80 μm is formed in the carbon steel side.

Effect of Heat Treatment Processes on Microstructure and Mechanical Properties of Nb-Ti-Stabilized 430 Stainless Steel Plate

2014 ◽  
Vol 887-888 ◽  
pp. 240-247
Author(s):  
Xun Zeng Huang ◽  
Si Yue Chen ◽  
Xin Zhang ◽  
Yi Tao Yang
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Ferritic Stainless Steel ◽  
Mechanical Performance ◽  
Strain Ratio ◽  
Annealed Sample ◽  
Annealing Process ◽  
Plastic Strain Ratio ◽  
Microstructure And Mechanical Properties ◽  
430 Stainless Steel

In this research, influence of annealing process on microstructure and mechanical performance of Nb-Ti-stabilized 430 ferritic stainless steel were investigated. In order to obtain the optimal annealing process, metallographic observation, SEM detection and tensile test were carried out. It is found that the microscopic structure is composed of fine and uniform isometric recrystallization grain after annealing. Optimum microstructure and mechanical properties can be achieved while annealed at 950 °Cfor 90 seconds. The annealed sample can obtain the optimum microstructure and mechanical properties under such annealing process. The yield platform is eliminated and the average plastic strain ratio is further improved to 1.269, which reflected a well deep drawability of the Nb-Ti-stabilized 430 ferritic stainless steel compared to SUS 430 stainless steel.

scholarly journals The Effect of Ni Interlayer on the Hot-Rolled and Quenched Stainless Steel Clad Plate

Materials ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 5455
Author(s):  
Zengmeng Lin ◽  
Shuai Wang ◽  
Jun He ◽  
Baoxi Liu ◽  
Cuixin Chen ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Shear Strength ◽  
Carbon Steel ◽  
Interface Shear ◽  
Quenching Temperature ◽  
Carburized Layer ◽  
Stainless Steel Clad Plate ◽  
Ni Interlayer ◽  
Hot Rolled

The vacuum hot-rolled SUS314/Q235 stainless steel clad plate has many drawbacks including serious interface alloy element diffusion, stainless steel cladding’s sensitization, and carbon steel substrate’s low strength. In this study, the comprehensive properties were systematically adjusted by changing the thickness of the Ni interlayer (0, 100, 200 μm) and the quenching temperature (1000~1150 °C). The results showed that the Ni interlayer can obviously hinder the diffusion of carbon element, so as to achieve the purpose of eliminating the decarburized layer and reducing the carbon content of the carburized layer. Meanwhile, the perfect metallurgical bonding between the substrate and cladding can be obtained, effectively improving the stainless steel clad plate’s tensile shear strength and comprehensive mechanical properties, and significantly reduce the brittleness of the carburized layer. As the quenching temperature increases, the grains coarsening of carbon steel and stainless steel became more and more serious, and the sensitization phenomenon and the thickness of the carburized layer are gradually decreased. The stainless steel clad plate (Ni layer thickness of 100 μm) quenched at 1050 °C had the best comprehensive mechanical properties. Herein, the interface shear strength, tensile strength and the fracture elongation reached 360.5 MPa, 867 MPa and 16.10%, respectively, achieving strengthening and toughening aim. This is attributed to the disappearance of the sensitization phenomenon, the grain refinement and the lower interface residual stress.

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