A Novel Design to Enhance the Mechanical Properties in Cu-Bearing Antibacterial Stainless Steel

Sun, Shitao; Zhang, Xue; An, Licong; Chen, Xiaohua; Liu, Yifei

doi:10.3390/ma13020403

Cited by 9 publications

(3 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Different from those Cr carbides precipitated along the bainite lath boundaries in Figure 4 , the Cu-rich particles are mainly dispersed in the ferrite matrix, mostly in the shape of short rods or ellipsoids, which are very close to the morphology of Cu-rich phase particles as referred to in References [ 18 , 19 ]. The primary reason why the fine Cu-rich phase particles are distributed in ferrite matrix may be attributed to the existence of dislocation and other defects with relatively high energy, which provides some effective transfer channels for Cu diffusion during tempering, as well as appropriate nucleation sites for the precipitation of Cu particles.…”

Section: Resultsmentioning

confidence: 73%

A Comparison Study on the Strengthening and Toughening Mechanism between Cu-Bearing Age-Hardening Steel and NiCrMoV Steel

et al. 2021

View full text Add to dashboard Cite

Cu-bearing age-hardening steel has significant potential in shipbuilding applications due to its excellent weldability as compared to conventional NiCrMoV steel. Not much research has been carried out to analyze the differences in the mechanisms of strength and toughness between Cu-bearing age-hardening and NiCrMoV steel. Both steels were heat treated under the same conditions: they were austenized at 900 °C and then quenched to room temperature, followed by tempering at 630 °C for 2 h. The uniaxial tensile test reveals that the Cu-bearing age-hardening steel exhibits relatively lower strength but larger plasticity than NiCrMoV steel. The lower contents of Carbon and other alloying elements is one of possible reasons for these differences in mechanical properties. Transmission Electron Microscope observations show that two types of precipitates, Cr carbides and Cu-rich particles, exist in tempered Cu-bearing age-hardening steel. Cu-rich particles with sizes of 20–40 nm can inhibit the dislocation motion during deformation, which then results in dislocation pile ups and multiplication; this makes up the strength loss of Cu-bearing age-hardening steel and simultaneously improves its plasticity.

show abstract

Section: Resultsmentioning

confidence: 73%

A Comparison Study on the Strengthening and Toughening Mechanism between Cu-Bearing Age-Hardening Steel and NiCrMoV Steel

et al. 2021

View full text Add to dashboard Cite

show abstract

“…A large amount of copper precipitation makes the material have excellent antibacterial properties, but it cannot improve the strength of the material. The copper ions that play a role of precipitation strengthening are very small and uniformly distributed [51]. Studies have shown that the antibacterial, antifungal, and antiviral effects of copper nanoparticles are related to its direct contact with microorganisms and its killing effect [52].…”

Section: Copper Nanoparticles and Copper Oxide Nanoparticlesmentioning

confidence: 99%

Antimicrobial Properties of Metal Nanoparticles and Their Oxide Materials and Their Applications in Oral Biology

Zhang

Lin

Huang

et al. 2022

Journal of Nanomaterials

View full text Add to dashboard Cite

Some scholars have shown that metal nanoparticles have excellent antibacterial properties and can be used as a new type of antibacterial agent. In recent years, with the in-depth research on nanomaterials, its applications in the medical field have gradually increased. The oral cavity has a unique anatomical structure, and for oral infections, the current clinically commonly used treatment measures are oral or topical antibiotics. However, due to bacterial resistance and the special structure of dental plaque, the effect of antibiotics is not ideal. Metal and metal oxide nanoparticles have become the research hotspot of new antibacterial materials due to their small particles, large specific surface area, physical, mechanical, and chemical properties, and antibacterial properties. This article describes the antibacterial effect, antibacterial mechanism, biological toxicity, and application progress of metal nanomaterials in the oral cavity.

show abstract

“…Therefore, antibacterial stainless steel has been successfully developed and widely used in daily life. [ 10–12 ] Liu et al [ 13 ] found that copper‐bearing low‐carbon steel with 3% copper showed good corrosion resistance in a marine environment. However, the antibacterial ability of the steel could not be confirmed.…”

Section: Introductionmentioning

confidence: 99%

Effect of aging temperature on corrosion resistance and antibacterial ability of 0Cu2Cr carbon steel

Guo

Teng

et al. 2021

Materials & Corrosion

View full text Add to dashboard Cite

The effect of heat treatment on the corrosion resistance and antibacterial ability of 0Cu2Cr carbon steel was studied using scanning electron microscopy, transmission electron microscopy, laser scanning confocal microscopy, and electrochemistry. The results showed that the peak aging state with complete crystal growth and uniform precipitate phase distribution was attained at the aging temperature of 850°C. Both the Cu‐rich phase with an approximately spherical structure and the dispersive Cu‐ordered phase with a B2 structure were observed in the grain boundary and internal crystal and effectively improved the hardness of the steel because of precipitation strengthening. Thus, the corrosion resistance and antibacterial ability of the 0Cu2Cr carbon steel could be improved by aging it at 850°C.

show abstract

A Novel Design to Enhance the Mechanical Properties in Cu-Bearing Antibacterial Stainless Steel

Cited by 9 publications

References 32 publications

A Comparison Study on the Strengthening and Toughening Mechanism between Cu-Bearing Age-Hardening Steel and NiCrMoV Steel

A Comparison Study on the Strengthening and Toughening Mechanism between Cu-Bearing Age-Hardening Steel and NiCrMoV Steel

Antimicrobial Properties of Metal Nanoparticles and Their Oxide Materials and Their Applications in Oral Biology

Effect of aging temperature on corrosion resistance and antibacterial ability of 0Cu2Cr carbon steel

Contact Info

Product

Resources

About