{"title":"Shewanella藻矿化对不锈钢钝化膜的影响(FIB-SEM/TEM和EELS","authors":"Li Zhao, Tian-Yu Cui, Wei-Wei Chang, Hong-Chang Qian, Yun-Tian Lou, Jing-Zhi Yang, Da-Wei Zhang","doi":"10.1007/s40195-025-01816-2","DOIUrl":null,"url":null,"abstract":"<div><p>The adhesion of <i>Shewanella algae</i> (<i>S. algae</i>) on the surface of stainless steel induced the formation and coverage of calcium carbonate minerals in the aerobic environment, and the effect of these minerals on the passive film of stainless steel was investigated by focused ion beam-scanning electron microscopy/transmission electron microscopy (FIB-SEM/TEM) and electron energy loss spectroscopy (EELS) techniques. The TEM and energy-dispersive X-ray spectroscopy (EDS) results revealed that the passive film in the region covered by mineralized particles underwent chelation between Fe and Cr compounds with CaCO<sub>3</sub>, forming an unstable amorphous layer, which accelerated the loss of Fe and Cr elements. EELS analysis showed that the loss of Fe element in the passive film was the most significant, with a transition from Fe<sup>3+</sup> to soluble Fe<sup>2+</sup> occurring, which caused by the iron-reducing property and metabolic activities of the adherent <i>S. algae</i>. The loss of the main metal elements caused the accelerated degradation of the passive film beneath the minerals.</p></div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":"38 6","pages":"877 - 888"},"PeriodicalIF":3.9000,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of Mineralization Induced by Shewanella algae on Passive Film of Stainless Steel via FIB-SEM/TEM and EELS\",\"authors\":\"Li Zhao, Tian-Yu Cui, Wei-Wei Chang, Hong-Chang Qian, Yun-Tian Lou, Jing-Zhi Yang, Da-Wei Zhang\",\"doi\":\"10.1007/s40195-025-01816-2\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The adhesion of <i>Shewanella algae</i> (<i>S. algae</i>) on the surface of stainless steel induced the formation and coverage of calcium carbonate minerals in the aerobic environment, and the effect of these minerals on the passive film of stainless steel was investigated by focused ion beam-scanning electron microscopy/transmission electron microscopy (FIB-SEM/TEM) and electron energy loss spectroscopy (EELS) techniques. The TEM and energy-dispersive X-ray spectroscopy (EDS) results revealed that the passive film in the region covered by mineralized particles underwent chelation between Fe and Cr compounds with CaCO<sub>3</sub>, forming an unstable amorphous layer, which accelerated the loss of Fe and Cr elements. EELS analysis showed that the loss of Fe element in the passive film was the most significant, with a transition from Fe<sup>3+</sup> to soluble Fe<sup>2+</sup> occurring, which caused by the iron-reducing property and metabolic activities of the adherent <i>S. algae</i>. The loss of the main metal elements caused the accelerated degradation of the passive film beneath the minerals.</p></div>\",\"PeriodicalId\":457,\"journal\":{\"name\":\"Acta Metallurgica Sinica-English Letters\",\"volume\":\"38 6\",\"pages\":\"877 - 888\"},\"PeriodicalIF\":3.9000,\"publicationDate\":\"2025-01-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Acta Metallurgica Sinica-English Letters\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s40195-025-01816-2\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"METALLURGY & METALLURGICAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Metallurgica Sinica-English Letters","FirstCategoryId":"1","ListUrlMain":"https://link.springer.com/article/10.1007/s40195-025-01816-2","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
引用次数: 0
摘要
利用聚焦离子束扫描电镜/透射电镜（FIB-SEM/TEM）和电子能量损失能谱（EELS）技术研究了希瓦氏藻（Shewanella algae， S. algae）在不锈钢表面的粘附诱导碳酸钙矿物在好氧环境下的形成和覆盖，并研究了这些矿物对不锈钢钝化膜的影响。TEM和能谱分析（EDS）结果表明，矿化颗粒覆盖区域的钝化膜与CaCO3发生螯合作用，形成不稳定的非晶层，加速了Fe和Cr元素的损失。EELS分析表明，钝化膜中铁元素的损失最为显著，发生了从Fe3+到可溶性Fe2+的转变，这是由附着藻的铁还原特性和代谢活性引起的。主要金属元素的流失导致矿物下钝化膜的加速降解。
Effect of Mineralization Induced by Shewanella algae on Passive Film of Stainless Steel via FIB-SEM/TEM and EELS
The adhesion of Shewanella algae (S. algae) on the surface of stainless steel induced the formation and coverage of calcium carbonate minerals in the aerobic environment, and the effect of these minerals on the passive film of stainless steel was investigated by focused ion beam-scanning electron microscopy/transmission electron microscopy (FIB-SEM/TEM) and electron energy loss spectroscopy (EELS) techniques. The TEM and energy-dispersive X-ray spectroscopy (EDS) results revealed that the passive film in the region covered by mineralized particles underwent chelation between Fe and Cr compounds with CaCO3, forming an unstable amorphous layer, which accelerated the loss of Fe and Cr elements. EELS analysis showed that the loss of Fe element in the passive film was the most significant, with a transition from Fe3+ to soluble Fe2+ occurring, which caused by the iron-reducing property and metabolic activities of the adherent S. algae. The loss of the main metal elements caused the accelerated degradation of the passive film beneath the minerals.
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This international journal presents compact reports of significant, original and timely research reflecting progress in metallurgy, materials science and engineering, including materials physics, physical metallurgy, and process metallurgy.
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