Tensile shear sample design and interfacial shear strength of stainless steel clad plate

This paper deals with carbon steel and stainless steel clad-plate properties. Cladding is performed by the submerged-arc welding (SAW) overlay process. Due to element diffusion (Fe, Cr, Ni, and Mn), a 1.5 mm wide diffusion layer is formed between the stainless steel and carbon steel interface of the cladded plate affecting corrosion resistance. Pitting resistance is evaluated by measuring the critical-pitting temperature (CPT), as described in the American Society for Testing and Materials (ASTM) G-48 standard test. Additionally, Huey immersion tests, in accordance with ASTM A262, Type C, are carried out to evaluate the intergranular corrosion resistance. Some hardness peaks are detected in microalloyed steel close to the molten interface line in the coarse-grained heat-affected zone (CGHAZ). Results show that stress-relieving treatments are not sufficient to avoid hardness peaks. The hardness peaks in the CGHAZ of the microalloyed steel disappear after quenching and tempering (Q and T).

Section: Introductionmentioning

confidence: 99%

Corrosion Behavior and Mechanical Properties of AISI 316 Stainless Steel Clad Q235 Plate

Schino

Testani

2020

“…There are many ways to improve the interface strength. In this paper, the interface bonding strength is gradually increased with the increase of vacuum degree, rolling reduction ratio and rolling temperature, and the interface strength is higher than that of the carbon steel substrate [100][101][102][103]. Herein, the hot-rolled stainless steel-clad plate reveals severe carbon element diffusion, leading to the formation of a decarburized layer and carburized layer, as shown in Figure 8a, and the decarburized layer's absence of pearlite phase cannot afford high stress.…”

Section: Interface Structurementioning

confidence: 86%

“…However, in the system of laminated Ti-TiB w /Ti composites, a considerable number of tunnel cracks are formed during the tensile and bending process, and these tunnel cracks cannot propagate into the soft layer, so it will absorb a lot of crack propagation work and play an important toughening effect. In the research of stainless steel-clad plates, a certain thick carburized layer will be located at the interface diffusion zone due to the carbon element diffusion, which has a strong intergranular fracture and intergranular corrosion tendency [25,100]. During the tensile testing process, many tunnel cracks along the grain boundaries of the carburized layer will appear, leading to the high toughness of stainless steel clad plates [26].…”

Section: Interface Structurementioning

confidence: 99%

“…The laminated metal matrix composites will form a hot crack due to increased superior tensile stress, which seriously affects the overall performance [114]. Liu et al [100] investigated the bending fracture characteristics of laminated Ti-TiB w /Ti composites and found that low diffusion welding temperature can result in the formation of weak interface and severe interface delamination as shown in Figure 9a,b, which is beneficial to improving the bending resistance of laminated composites. However, high diffusion welding temperature can effectively promote the alloy elements' diffusion behavior and form a strong interface.…”

Section: Effect Of Residual Stressmentioning

confidence: 99%

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The Deformation Characteristics, Fracture Behavior and Strengthening-Toughening Mechanisms of Laminated Metal Composites: A Review

Gao

Zhang

Liu

et al. 2019

Multilayer metal composites have great application prospects in automobiles, ships, aircraft and other manufacturing industries, which reveal their superior strength, toughness, ductility, fatigue lifetime, superplasticity and formability. This paper presents the various mechanical properties, deformation characteristics and strengthening–toughening mechanisms of laminated metal matrix composites during the loading and deformation process, and that super-high mechanical properties can be obtained by adjusting the fabrication process and structure parameters. In the macroscale, the interface bonding status and layer thickness can effectively affect the fracture, impact toughness and tensile fracture elongation of laminated metal matrix composites, and the ductility and toughness cannot be fitting to the rule of mixture (ROM). However, the elastic properties, yield strength and ultimate strength basically follow the rule of mixture. In the microscale, the mechanical properties, deformation characteristics, fracture behavior and toughening mechanisms of laminated composites reveal the obvious size effect.

“…It can be meant as a concentration profile shape factor, since it characterizes the shape of the concentration curve that is expressed by Equation (1), its slope across the Matano interface and, therefore, the diffusion depth, which determines the width of bonding at the interface. The latter aspect has a direct impact on the efficiency of the interface in terms of mechanical stability, being a strong interface bonding generally attributed to a sufficient alloying elements diffusion: the wider the diffusion depth is, the stronger the interfacial shear strength of clad plates will be [26], as a result of the interaction among atoms of the different elements in solid solution.…”

Section: Theoretical Modelling and Simulationmentioning

confidence: 99%

Metallurgical Characterization of the Interfaces in Steel Plates Clad with Austenitic Steel or High Ni Alloys by Hot Rolling

Giudice

Missori

Murdolo

et al. 2020

An integrated experimental-theoretical approach to the metallurgical characterization of the interfaces in steel plates clad by hot rolling is proposed. Three different couplings of materials have been studied: ASTM A 515 Gr.60 low carbon steel clad with austenitic stainless steel AISI 304L; extra low carbon steel ASTM A283 clad with high Ni content Alloy 59; and, low carbon steel AISI 1010 clad with Cu-Ni Monel 400. Experimental investigations, which are addressed to analyse the microstructural changes near the interfaces and identify the present phases, have been carried out through scanning electron microscopy (SEM) observations, microanalytical measurements by energy dispersive spectroscopy (EDS), and Vickers microhardness tests. In all of the cases examined, the zones that are affected by detrimental microstructural changes results in being considerably less thick than the overall cladding layer. Simulations that are based on theoretical diffusion modelling have been integrated to the experimental characterization by introducing a cladding parameter that acts on the diffusion bonding efficiency, in order to evaluate the effects of process temperature and time variations on diffusion bonding efficiency and stability. In particular, this analytical investigation has shown how the shorter is the duration of the diffusion transient and the higher the temperature, the lower results the sensitivity of the diffusion processes to temperature fluctuations.