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您的检索式：作者名="Robabeh Bagheri"
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| 1 | 越南芽孢杆菌对2507双相不锈钢加速腐蚀的影响显示文摘从舟山腐蚀观测站采集并分离越南芽孢杆菌,通过电化学测试方法、表面分析技术和红外光谱研究其对2507双相不锈钢腐蚀行为的影响。结果表明,在细菌的作用下,双相不锈钢的开路电位和自腐蚀电位负移,腐蚀电流密度增大。SEM观察表明双相不锈钢表面有生物膜生成。Fourier变换红外光谱分析表明,在900~1200和1500~1600 cm^(-1)区域有吸收峰,分别对应细菌的代谢产物胞外多糖和蛋白质;而在2800~2900 cm^(-1)区域的宽峰则显示不锈钢表面产生了生物膜。电化学阻抗谱测试也表明双相不锈钢表面有生物膜生成。生物膜和氧化物的产生加速了不锈钢的腐蚀。 | 孙朝晖 Masoumeh Moradi 杨丽景 Robabeh Bagheri 宋振纶 陈艳霞 | 2016 | 中国腐蚀与防护学报2016，36，6： | 2 |
| 2 | Influence of laser surface remelting on microstructure and degradation mechanism in simulated body fluid of Zn-0.5Zr alloy显示文摘In this study,the Zn-0.5 wt%Zr(Zn-Zr)alloy was treated by laser surface remelting(LSR),and then the microstructure and degradation mechanism of the remelting layer were investigated and compared with the original as-cast alloy.The results reveal that after LSR,the bulky Zn(22)Zr phase in the original Zn-Zr alloy is dissolved and the coarse equiaxed grains transform into fine dendrites with a secondary dendrite arm space of about 100 nm.During the degradation process in simulated body fluid(SBF),the corrosion products usually concentrate at some certain areas in the original alloy,while the corrosion products distribute uniformly and loosely in the LSR-treated surface.After removing the corrosion products,it was found that the former suffers obvious pitting corrosion and then localized corrosion.The proposed mechanism is that corrosion initiates at grain boundaries and develops into the depth at some locations,and then leads to localized corrosion.For the LSR-treated sample,corrosion initiates at some active sites and propagates in all directions,corrosion takes place in the whole surface with distinctly uniform thickness reduction,while the localized corrosion and peeling of bulky Zn(22)Zr particles were eliminated.The electrochemical results also suggest the uniform corrosion of LSR-treated sample and localized corrosion of original sample.Based on the results,a new approach to regulate the corrosion mode of the biodegradable Zn alloy is proposed. | Zheng Wang Qingke Zhang Robabeh Bagheri Pushan Guo Yirong Yao Lijing Yang Zhenlun Song | 2019 | Journal of Materials Science & Technology2019，35，11： | 1 |
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