Results 1 to 10 of about 397 (85)
Gaoya dianqi, 2022 采用腐蚀产物形貌结构分析方法（SEM、EDS、XRD）以及电化学测试方法，研究了在模拟高温高湿环境下腐蚀时间以及外加不同强度直流电场对电力杆塔用碳钢腐蚀行为、腐蚀产物以及形貌结构的影响。结果表明，随着腐蚀时间的延长，碳钢表面的腐蚀产物不断发生变化，腐蚀最初期的腐蚀产物以棉球状α-FeOOH为主，逐渐发展变化为片状的γ-FeOOH和尖晶长条状的Fe3O4，导致表面的腐蚀产物致密性相比腐蚀初期大大减小，对内部基底的保护作用减弱。而电场的存在则会在腐蚀时间作用的基础上进一步抑制α-FeOOH的生成、加速γ ...
李光茂 +6 more
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Gaoya dianqi, 2022 研究固体分解产物是探明SF6断路器金属有机材料腐蚀机制的重要科学手段。文中以40.5 k V SF6断路器为实验对象，研究了不同电流大小、极性、开断次数下触头和喷口本体材料电热腐蚀程度的影响。开断实验后对断路器进行解体发现，大电流开断导致动静弧触头的腐蚀，正极性开断加速了动弧触头的腐蚀，在触头表面及灭弧室底部有固体分解产物产生。利用扫描电子显微镜（SEM）、X射线能谱（EDS）、粉末晶体衍射（XRD）技术分析了固体分解产物的化学组成，发现触头表面固体分解产物包括Cu2O、Cu2S ...
杨韧 +5 more
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Gongye shui chuli, 2016 在模拟真实管网水力条件下，从腐蚀速率、铁释放、腐蚀产物形貌及成分等方面，研究了氨氮和硝酸盐氮对碳钢腐蚀的影响。研究发现，加氨氮和硝酸盐氮的工况1与未加两种物质的工况2相比，工况1有更低的铁释放速率和腐蚀速率。两种工况腐蚀产物类型差别不大，腐蚀产物主要包括γ-FeOOH、α-FeOOH、Fe2O3、Fe3O4、β-FeOOH，未检测出碳酸钙但出现一种新的晶型——钙磷石，整体来说工况1腐蚀产物密实、稳定性更好。
张雅君 +4 more
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Gongye shui chuli, 2016 在模拟真实管网水力条件下,从腐蚀速率、铁释放速率、腐蚀产物形貌及成分等方面研究了低浓度磷酸盐对碳钢腐蚀的影响。研究发现,磷酸盐为0.8mg/L时达到极值,腐蚀抑制效果最好,碳钢的腐蚀速率可降低15.66%。磷酸盐可抑制γ-FeOOH的形成,同时形成磷铁矿,使腐蚀产物更加致密,从而抑制腐蚀。磷酸盐对铁释放存在初期加速作用,可能是磷酸盐促进铁元素向稳定铁氧化物转变,使腐蚀提前达到稳定状态的重要原因,最终抑制腐蚀。
张雅君 +4 more
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Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Ti‐15Mo‐2.5Ag alloy exhibited a low modulus and strong antibacterial ability but poor bioactivity. To resolve this problem, sandblasting and anodization were used to create a hydrophilic and nano‐Ag2O‐containing TiO2 coating. Subsequently, the microstructure and physicochemical properties were investigated by scanning electron microscopy, X ...
Yanchun Xie +11 more
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Gongye shui chuli, 1985 当锅炉内出现腐蚀产物时(如铁、铜的氧化物),炉内表面上便会形成由腐蚀产物与泥渣结合成的绝热沉积物,从而降低锅炉的热效率和浪费能源。
马玉
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Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Advanced metallic glasses, leveraging their ultrahigh strength, excellent corrosion resistance, superior soft magnetic properties and good biocompatibility, have gradually become indispensable strategic cornerstones in critical fields such as aerospace, electronic information and energy power. This unique combination of properties enables them
Yizhou Liu +11 more
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Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Biodegradable Zn‐based alloys are promising candidates for temporary implants, yet excessive Zn2+ release during degradation may induce cytotoxicity and adverse tissue responses. In this study, Zn‐xBa alloys (x = 0.1 wt%, 0.5 wt%, 1.0 wt% and 3.0 wt%) were developed to achieve controlled corrosion behaviors with improved biocompatibility.
Liu‐Dang Fang +9 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Metal‐organic frameworks (MOFs) hold significant potential across numerous advanced disciplines due to their exceptional properties, including high specific surface area, tunable porosity, structural diversity, and customizable functionality. Increasing attention has been directed toward employing MOFs in coatings that offer both antimicrobial
Yanchun Zhao +7 more
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Yttrium Addition Co‐Enhances the Plasticity and Corrosion Resistance of TiB2‐Refined Al‐Mg‐Zn Alloys
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT To address the degradation of corrosion resistance induced by Al‐5Ti‐B grain refiner during the strengthening of Al‐Mg‐Zn alloys, this study innovatively employed a rare earth element yttrium (Y) alloying strategy to achieve synergistic enhancement of mechanical strength and corrosion resistance.
Wen‐Tao Qin +9 more
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