Study on properties of copper-containing austenitic antibacterial stainless steel

ABSTRACT

The influence of different solution temperature and ageing temperature on the antibacterial and mechanical properties of antibacterial stainless steels with different copper contents was studied in depth by the control variable method. On the front side, the precipitation of the copper-rich phase is reflected by the hardness and antibacterial properties through TEM, STEM and side surfaces. As a result, it was found that lath martensite exists after the antibacterial heat treatment, and the precipitated copper-rich phase is approximately 15 nm in distribution and is in parallel with the matrix.

KEYWORDS:

• Antibacterial stainless steel
• coherence relationship
• coherency strengthening
• copper-rich phase

Acknowledgments

This work was financially supported by 2017 key project of the Department of Science and Technology of Sichuan Province (2017GZ0123).

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by the the Department of Science and Technology of Sichuan Province [2017GZ0123].