Results 31 to 40 of about 16,255 (163)
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Graphene‐reinforced copper (Gr/Cu) composites have attracted considerable attention because of their potential to achieve a synergistic enhancement of strength, electrical conductivity, and corrosion resistance; however, the poor dispersion of graphene in the Cu matrix remains a key limitation for their further development.
Wenjing Zhang +12 more
wiley +1 more source
输电铁塔用镀锌钢在不同浓度NaCl和NaHSO_3中的腐蚀行为 [PDF]
, 2018 采用电化学阻抗谱(EIS)、动电位极化测试技术,研究镀锌钢在不同浓度NaCl和NaHSO3溶液中的腐蚀行为,利用扫描电镜(SEM)、能谱(EDS)研究镀锌钢表面腐蚀形貌和腐蚀产物。结果表明,NaCl及NaHSO3均加速镀锌钢腐蚀,且随着腐蚀介质浓度的增大,镀锌钢自腐蚀电位负移,腐蚀电流密度逐渐增大 ...
吴跃斌 +7 more
core
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
doaj +2 more sources
Shiyou jixie, 2014 针对瓦庄油田油井泵吸入口处套管腐蚀行为，研制了一种井下动态腐蚀模拟试验装置。利用该装置进行了不同CO2分压、温度和日产液量等因素控制下套管挂片腐蚀速率的测定，并用SEM、EDS和XRD等方法分析了腐蚀产物膜的微观形貌及化学成分质量分数，在此基础上对套管腐蚀机理进行研究。研究结果表明，瓦庄油田套漏的主要原因是溶解在高矿化度地层水中的CO2腐蚀，并且腐蚀速率随着CO2分压、温度和日产液量的增加而增大，腐蚀形态由全面腐蚀向局部腐蚀转变，腐蚀产物主要是FeCO3 ...
高斐 +5 more
doaj
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
wiley +1 more source
, 2019 针对铁路扣件在沿海区域遭受冲蚀和海洋腐蚀难题,本文研制一种新型防腐抗冲蚀复合涂层。采用石墨烯锌防腐底漆和抗冲蚀弹性聚氨酯面漆,通过盐雾实验、电化学测试和涂层硬度测试评价复合涂层的综合防护性能。结果表明,制备的复合涂层抗冲蚀性能较好,在3.5%(质量分数) NaCl溶液中浸泡28 d后涂层电阻仍达到18.9 MΩ·cm~2,复合涂层耐盐雾性能超过1500 ...
孙立三 +6 more
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Dianci bileiqi, 2017 采用现场照片、扫描电子显微镜（SEM）、电子能谱（EDS）和X射线衍射（XRD）分析了某500kV变电站接地网腐蚀情况,探讨了腐蚀机理,结果表明:地网腐蚀为局部腐蚀,主要原因为1)降阻剂铺设不均匀,造成接地网局部盐浓差腐蚀;2)土壤中存在硫酸盐还原菌促进接地网腐蚀;3)石墨与扁钢之间存在电偶腐蚀,泄漏电流促进了接地网局部腐蚀。并提出了接地网的防腐措施。
徐松 +7 more
doaj
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The intricate corrosion environment necessitates the polymeric coating's adaptability to the surroundings. In this work, the integration of rare‐earth Ce(III) ions and ethylene diamine tetramethylene phosphonic acid (EDTMP) in a layered double hydroxide (LDH) material is developed to enhance the corrosion protection and anti‐wear properties of
Yangu Liu +9 more
wiley +1 more source
钢基身管内镀铬层下的激光淬火基体界面腐蚀与铬层剥落 [PDF]
, 2006 钢基身管镀铬层在高温腐蚀性气体中服役,采用YAG激光器对身管内表面作螺旋线状离散淬火预处理后再电镀铬的复合工艺,形成了基体界面呈激光淬火区/激光未处理区周期性变化的铬层/基体结构.对该身管进行高温腐蚀介质为火药气体的靶场实验.对实验后的基体界面腐蚀形貌与铬层剥落的关系研究表明:次界面裂纹的形成是基体界面高温气体腐蚀的根本原因,基体界面腐蚀的结果是形成基体烧蚀坑,烧蚀坑上的铬层以断裂形式剥落.激光淬火预处理钢基体通过抑制次界面裂纹的形成避免了基体界面高温气体腐蚀损伤 ...
张国祥 +4 more
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Interface polarization enhancement and impedance matching optimization are the keys to improving the comprehensive performance of microwave absorbing materials (MAMs). Herein, a green synthesis strategy integrating sacrificial template self‐etching, hydrothermal reaction, and annealing treatment is proposed to successfully fabricate urchin ...
Zhenzhen Tian +8 more
wiley +1 more source