Effect of copper on edge cracking behavior and microstructure of rolled austenitic stainless steel plate

Zhao, Guanghui; Zhang, Jian; Li, Juan; Li, Huaying; Liu, Haitao; Ma, Lifeng

doi:10.1007/s42243-021-00588-0

Cited by 8 publications

(2 citation statements)

References 23 publications

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“…[ 10 ] In the subsequent rolling process, the segregation of copper elements accelerates the separation from the substrate interface. [ 11 ] However, antibacterial steel requires a high copper content to undergo special heat treatment (solid solution and aging) to disperse and distribute the copper‐rich phase in the steel, and then release it into the physiological environment to play a lasting bactericidal effect. Therefore, Zhao and Sun studied the precipitation behavior of the copper‐rich phase, regulated the rolling and heat treatment processes, and improved the antibacterial function of the test steel.…”

Section: Introductionmentioning

confidence: 99%

Damage Evolution of Antibacterial Stainless Steel at Different Loading Rates Based on Digital Image Correlation Method

Zhao

et al. 2023

Adv Eng Mater

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Using Shimadzu AGS‐100KN tensile machine, LEICA‐LM/DM optical microscope, and electron backscatter diffractometer (EBSD), combined with digital image correlation (DIC) analysis method, the damage evolution behavior of copper‐containing antibacterial stainless steel in large deformation area and small deformation area under different loading rates is investigated. The results show that with the increase of the loading rate, the temperature rise induces local adiabatic shear bands in the microstructure, increasing work hardening, and a decrease in ultimate stress and full elongation. The damage evolves in the large deformation area, the sample is mainly deformed rapidly, the grain deformation degree is large, and the deformation basically stops in the small deformation area. The damage factor of the specimens in the large deformation zone and the small deformation zone increases with the increase of strain, and the damage deformation rate and the critical damage factor decrease with the increase of the loading rate. Based on the DIC method, the damage evolution equations of copper‐containing antibacterial stainless steel samples in large and small deformation regions under different loading rates are established, which effectively reflect the damage evolution laws at different loading rates.

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Section: Introductionmentioning

confidence: 99%

Damage Evolution of Antibacterial Stainless Steel at Different Loading Rates Based on Digital Image Correlation Method

Zhao

et al. 2023

Adv Eng Mater

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“…Copper, as a common tramp element in steel scrap, strongly prevents the effective use of steel scrap, i.e., during the heat treatment process, liquid copper forms and penetrates the grain boundaries, causing cracking [2,3]. As reported in the literature [2], the hot shortness is exhibited when the copper concentration is greater than 0.2 wt%.…”

Section: Introductionmentioning

confidence: 99%

Verification of Possibility of Molten Steels Decopperization with ZnAl2O4

Wei

Dudczig

Chebykin

et al. 2021

Metals

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In the previous research works, ZnAl2O4 material was considered as one of the solutions for the decopperization process of molten steels; up to 33% of decopperization efficiency was reported by utilising the ZnAl2O4 filter. In order to verify the decopperization possibility of ZnAl2O4 materials, iron-based alloys with various copper and carbon contents were interacted with ZnAl2O4 substrates in a heating microscope under an argon gas atmosphere at 1600 °C. Fe-Cu alloys were found to react with the ZnAl2O4 substrate during the interaction process, and a reaction layer with a complex composition around the alloy droplet was formed; however, Cu was not detected in the reaction layer. Cu was later found diffused inside of the ZnAl2O4 substrates. Furthermore, the Cu-Zn compounds were detected when the copper content in Fe-Cu alloys was 10 wt% Cu. After interaction experiments, copper was decreased in all cases. Thereby, the copper evaporation and infiltration into the ZnAl2O4 substrate were considered as the reasons for copper loss. Moreover, oxygen dissolved in melt was found to have a great effect on the copper evaporation process.

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Investigation of Friction and Wear Characteristics of Copper‐Containing Antimicrobial Stainless Steels at Low Temperatures

Zhao,

Zhang,

et al. 2024

Adv Eng Mater

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Experiments on friction and wear are conducted on copper‐containing antimicrobial stainless steel specimens and ordinary 304 stainless steel under a range of normal loads (20, 40, 60, and 100 N) and temperatures (23, 0, −60, and −120 °C). Using a white light interference 3D surface profilometer and a scanning electron microscope, the friction coefficient curves, wear mark surfaces, and friction mechanisms under varying friction conditions are analyzed. The results show that coefficient of friction (COF) and wear decrease with the decline regarding temperature and load, and the lowest value occurs at −120 °C. The copper‐containing antimicrobial stainless steel shows excellent tribological properties, with the COF gradually reducing from 23 to −120 °C. By contrast, the COF increases with increasing load. Additionally, tests and comparisons of standard 304 stainless steel under the same conditions demonstrate that the copper‐containing antimicrobial stainless steel shows enhanced tribological performance than ordinary 304 stainless steel, with a 31.2% lower erosion rate than standard stainless steel at −120 °C. Moreover, simulations and contrasts show that the copper‐containing antimicrobial stainless steel shows superior toughness and strength than ordinary stainless steel at low temperatures due to the presence of copper elements.

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Effect of copper on edge cracking behavior and microstructure of rolled austenitic stainless steel plate

Cited by 8 publications

References 23 publications

Damage Evolution of Antibacterial Stainless Steel at Different Loading Rates Based on Digital Image Correlation Method

Damage Evolution of Antibacterial Stainless Steel at Different Loading Rates Based on Digital Image Correlation Method

Verification of Possibility of Molten Steels Decopperization with ZnAl2O4

Investigation of Friction and Wear Characteristics of Copper‐Containing Antimicrobial Stainless Steels at Low Temperatures

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