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OALib Journal期刊
ISSN: 2333-9721
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热处理对3Cr13MoCu马氏体不锈钢抗菌性能的影响
DOI: 10.11900/0412.1961.2014.00184, PP. 1453-1460
Keywords: 含Cu马氏体不锈钢,抗菌性能,硬度,生物膜
Abstract:
利用抗菌性能检测、硬度测试、TEM观察、激光共聚焦显微镜观察和SEM观察等手段,研究了时效处理对3Cr13MoCu马氏体不锈钢抗菌性能的影响.研究结果表明,随着时效温度的升高,3Cr13MoCu马氏体不锈钢中的富Cu相不断长大,对金黄色葡萄球菌的杀菌率不断提高,但其硬度迅速下降.而在500℃进行时效处理时,延长时效时间至10~14h后,钢中富Cu相含量不断增加,其抗菌性能和硬度均不断提高.结合抗菌性能和硬度测试结果,确定3Cr13MoCu不锈钢的优化热处理制度为1080℃固溶30min,水冷+500℃时效10~14h,空冷.在此热处理工艺下,3Cr13MoCu不锈钢表现出了非常优异的抗菌性能,在杀灭游离态细菌的同时,还可以有效地抑制表面细菌生物膜的形成.
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