An ultra-high antibacterial performance austenitic stainless steel for medical implant stents
An austenitic stainless steel and performance technology, applied in the field of ultra-high antibacterial performance austenitic stainless steel materials and their preparation, can solve the problems of human health impact, reduced service life time, inability to apply, etc. Effect
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[0026]According to the chemical composition range set by the ultra-high antibacterial performance austenitic stainless steel material, the present invention adopts 15 kilograms of vacuum induction furnace to smelt the embodiment and comparative example to forge 10 kilograms of ultra-high antibacterial performance austenitic stainless steel respectively, and its chemical composition is shown in Table 1 .
[0027] The main chemical composition (wt.%) of the austenitic stainless steel of table 1 embodiment and comparative example
[0028]
[0029] According to the parameter range of the heat treatment method set by the ultra-high antibacterial performance austenitic stainless steel of the present invention, the detailed parameters of the solid solution and aging heat treatment formulated are shown in Table 2.
[0030] The heat treatment process parameter of table 2 embodiment and comparative example
[0031]
[0032] 1. In vitro antibacterial performance test
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