Microstructure and mechanical properties of hot rolled stainless steel clad plate by heat treatment

2018 ◽  
Vol 216 ◽  
pp. 460-467 ◽  
Author(s):  
B.X. Liu ◽  
S. Wang ◽  
W. Fang ◽  
J.L. Ma ◽  
F.X. Yin ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Stainless Steel ◽  
Microstructure And Mechanical Properties ◽  
Stainless Steel Clad Plate ◽  
Hot Rolled

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.

Effect of Adding a Type of Binder Phase on The Microstructure, Properties and Heat Treatment of Steel Bonded TiC Cermets

2007 ◽  
Vol 534-536 ◽  
pp. 1161-1164 ◽  
Author(s):  
Akthar Farid ◽  
Shi Ju Guo ◽  
Jawad Ali Shah ◽  
Pei Zhong Feng
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Stainless Steel ◽  
Master Alloy ◽  
Phase Variation ◽  
Binder Phase ◽  
Steel Matrix ◽  
Microstructure And Mechanical Properties ◽  
Maraging Stainless Steel

Particulate TiC reinforced 465 maraging stainless steel matrix Cermets were processed by conventional P/M. The binder phase was added in the form of elemental powders and master alloy powders. The microstructures, binder phase variation with TiC content and mechanical properties were evaluated. The addition of a type of binder phase largely effects the microstructure and mechanical properties. When a master alloy binder phase was used the microstructure showed interphase debondings, microcracks and large growths of TiC particles. Where as, elemental powders in the composition of binder phases showed defect free microstructure of steel bonded cermets. The binder phase variation from starting composition was observed with increase in wt% TiC content and this variation was higher when the master alloy powders were used as a binder. After heat treatment and aging, an increase in hardness was observed. The increase in hardness was attributed to the aging reaction in maraging stainless steel. The response to heat treatment was decreased with an increase in TiC content due to the shift of binder phase from the starting composition.

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