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

Schino, Andrea Di; Testani, Claudio

doi:10.3390/met10040552

Cited by 35 publications

(26 citation statements)

References 32 publications

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“…The effect of the up-setting temperature increase on microstructure is shown in Figures 2 and 3: results clearly show a grain size refinement. Results from mechanical properties related to the considered materials are reported in detail in [33] and are here summarized for the reader (see Table 3). In particular, results reported in put in evidence a not negligible KIC improvement, even if both Brinell hardness and yield strength were increased.…”

Section: Resultsmentioning

confidence: 99%

Precipitation State of Warm Worked Aa7050 Alloy: Effect on Toughness Behavior

Schino

2021

Acta Metall Slovaca

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Usually strength-toughness combination in aluminum alloys is improved by heat treatment (solid solution followed by quenching and reheating) after a deformation process at high temperature. In some cases a cold working step is added in the manufacturing process before heat treatment aimed to enhance the alloy strength. In recent time, some trials have been carried out finalized to replace the cold working step with a warm deformation. Such process route appeared to be quite effective in improving the toughness behavior of 7xxx alloys. Anyway e metallurgical explanation for such behavior has not still be reported . In this a comparison of the precipitation state following the two different routes is reported. Results show clear differences in the nanoprecipitation densities in the two cases, claiming for their responsibility in the definition of the toughness behavior.

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Section: Resultsmentioning

confidence: 99%

Precipitation State of Warm Worked Aa7050 Alloy: Effect on Toughness Behavior

Schino

2021

Acta Metall Slovaca

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“…Frequently, the ferritic steel vessels are cladded with stainless steel weld beads. Automatic submerged arc welding (SAW) is one of the most widely used methods of making cladded surfaces because of its high quality and reliability [2]. However, as a consequence of the welding process, in addition to the formation of hard and brittle martensitic structures [3], the surrounding base material is subject to complex thermomechanical cycles that include elastic, plastic, and/or creep distortions.…”

Section: Introductionmentioning

confidence: 99%

Quantification of Residual Stress Relief by Heat Treatments in Austenitic Cladded Layers

et al. 2022

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The effect of the heat treatment on the residual stresses of welded cladded steel samples is analyzed in this study. The residual stresses across the plate’s square sections were determined using complementary methods; applying diffraction with neutron radiation and mechanically using the contour method. The analysis of the large coarse grain austenitic cladded layers, at the feasibility limits of diffraction methods, was only made possible by applying both methods. The samples are composed of steel plates, coated on one of the faces with stainless steel filler metals, this coating process, usually known as cladding, was carried out by submerged arc welding. After cladding, the samples were submitted to two different heat treatments with dissimilar parameters: one at a temperature of 620 °C maintained for 1 h and, the second at 540 °C, for ten hours. There was some difference in residual stresses measured by the two techniques along the surface of the coating in the as-welded state, although they are similar at the welding interface and in the heat-affected zone. The results also show that there is a residual stress relaxation for both heat-treated samples. The heat treatment carried out at a higher temperature showed sometimes more than 50% reduction in the initial residual stress values and has the advantage of being less time consuming, giving it an industrial advantage and making it more viable economically.

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“…In the case of energy-sector applications (especially in oil and gas), corrosion resistance issues are often coupled with demanding mechanical requirements: in such cases, carbon steel is often cladded with stainless steels or even nickel superalloys [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Heat Treatment Effect on Microstructure Evolution in a 7% Cr Steel for Forging

Schino

Gaggiotti

Testani

2020

Metals

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Well-defined heat-treatment guidelines are required to achieve the target mechanical properties in high-chromium steels for forgings. Moreover, for this class of materials, the microstructure evolution during heat treatment is not clearly understood. Thus, it is particularly important to assess the steel microstructure evolution during heat treatment, in order to promote the best microstructure. This will ascertain the safe use for long-term service. In this paper, different heat treatments are considered, and their effect on a 7% Cr steel for forging is reported. Results show that, following the high intrinsic steel hardenability, significative differences were not found versus the cooling-step treatment, although prior austenite grain size was significantly different. Moreover, retained austenite (RA) content is lower in double-tempered specimens after heat treatments at higher temperatures.

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

Cited by 35 publications

References 32 publications

Precipitation State of Warm Worked Aa7050 Alloy: Effect on Toughness Behavior

Precipitation State of Warm Worked Aa7050 Alloy: Effect on Toughness Behavior

Quantification of Residual Stress Relief by Heat Treatments in Austenitic Cladded Layers

Heat Treatment Effect on Microstructure Evolution in a 7% Cr Steel for Forging

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