Corrosion Communications最新文献_第2页

Effects of temperature and acetic acid on electrochemical corrosion behavior of steel X80 温度和醋酸对X80钢电化学腐蚀行为的影响

Corrosion Communications Pub Date : 2025-01-03 DOI: 10.1016/j.corcom.2023.12.003

Yadong Li , Wanpeng Yao , Siquan Wang , JianJun Pang , Yan Li

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Unraveling the local stress corrosion cracking behavior of Alloy 690 plug in a high-temperature concentrated alkaline solution 揭示690合金塞在高温浓碱性溶液中的局部应力腐蚀开裂行为

Corrosion Communications Pub Date : 2024-12-09 DOI: 10.1016/j.corcom.2024.12.001

Baoliang Cheng , Jin Tao , Jingshan Deng , Botao Xu , Xinhe Xu , Songhan Nie , Tongming Cui , Junjie Chen , Zhanpeng Lu

{"title":"Unraveling the local stress corrosion cracking behavior of Alloy 690 plug in a high-temperature concentrated alkaline solution","authors":"Baoliang Cheng , Jin Tao , Jingshan Deng , Botao Xu , Xinhe Xu , Songhan Nie , Tongming Cui , Junjie Chen , Zhanpeng Lu","doi":"10.1016/j.corcom.2024.12.001","DOIUrl":"10.1016/j.corcom.2024.12.001","url":null,"abstract":"<div><div>The stress corrosion cracking (SCC) performance of the sealed Alloy 690 plugs was investigated in 350 °C deoxygenated concentrated alkaline solution. Sealing was used to expose only the inner surface of the plug, preventing direct contact between the tube sheet and the concentrated alkaline solution. After exposure for 1000 h, several intergranular cracks were observed on the inner wall of the plugs. Stress corrosion cracks primarily appear in some regions on the inner wall, which are highly deformed and advanced along the random grain boundary. The internal oxide layer formed in the high-temperature alkaline solution was not dense; it comprised a composite oxide with multiple layers. The outermost layer consisted of Fe-Cr-Ni oxide particles, and beneath it was an uneven Ni-rich layer, followed by a thin Cr-rich layer closest to the matrix. High kernel average misorientation in the heavily deformed region and a lack of chromium carbide contributed to crack initiation and propagation of Alloy 690 plug in hot concentrated alkaline solutions.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"17 ","pages":"Pages 12-23"},"PeriodicalIF":0.0,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143144215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Effects of long-term annealing on pitting corrosion behavior of Type 304 borated stainless steels 长期退火对304型硼化不锈钢点蚀行为的影响

Corrosion Communications Pub Date : 2024-12-08 DOI: 10.1016/j.corcom.2024.08.001

Heon-Young Ha , Seong Hoon Kim , Kyeong-Won Kim , Tae-Ho Lee , Chi-Hyoung Won , Chang-Hoon Lee

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High temperature oxidation behavior of γʹ-strengthened CoNi-base superalloys γ +强化镍基高温合金的高温氧化行为

Corrosion Communications Pub Date : 2024-12-01 DOI: 10.1016/j.corcom.2023.11.005

Yingju Li , Shasha Qu , Tianyu Liu , Bingyu Lu , Xiaohui Feng , Yuansheng Yang

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Effects of pre-strain on hydrogen-induced stress corrosion cracking behavior of Q345R steel in hydrofluoric acid vapor environment 预应变对氢氟酸蒸汽环境中 Q345R 钢氢诱导应力腐蚀开裂行为的影响

Corrosion Communications Pub Date : 2024-12-01 DOI: 10.1016/j.corcom.2023.11.004

Hailong Dai , Jiahui Tang , Shouwen Shi , Zhe Zhang , Xu Chen

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Synergistic effects of CO2 and H2S on stress corrosion cracking of stainless steel 254SMo in extremely aggressive oilfield environment CO2和H2S对254SMo不锈钢在极端腐蚀性油田环境中应力腐蚀开裂的协同作用

Corrosion Communications Pub Date : 2024-12-01 DOI: 10.1016/j.corcom.2024.03.003

Song Meng , Penghui Yue , Shucai Zhang , Huabing Li , Yang Zhao , Yong Hua , Tao Zhang , Fuhui Wang

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Interpreting microbiologically influenced stress corrosion with machine learning and theoretical analysis 用机器学习和理论分析解释微生物对应力腐蚀的影响

Corrosion Communications Pub Date : 2024-11-27 DOI: 10.1016/j.corcom.2024.01.004

Bo Liu , Boxin Wei , Cuiwei Du , Xiaogang Li

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Oxygen-driven de-alloying of Fe-14Cr-12Ni-10Mn-3Cu-2.5Al-1Nb austenitic steel at 500 °C in static Pb-Bi eutectic with concentration of dissolved oxygen alternating from ∼10-6 to 10-9 mass% for 10000 h 在 500 ℃ 的静态铅铋共晶中，溶解氧浓度从 ∼10-6 到 10-9 质量%交替变化，10000 小时内，Fe-14Cr-12Ni-10Mn-3Cu-2.5Al-1Nb 奥氏体钢的氧驱动脱合金过程

Corrosion Communications Pub Date : 2024-11-12 DOI: 10.1016/j.corcom.2024.01.002

Valentyn Tsisar , Erich Stergar , Serguei Gavrilov , Eloa Lopes Maia , Wouter Van Renterghem , Pierre Louette , Stéphane Lucas

{"title":"Oxygen-driven de-alloying of Fe-14Cr-12Ni-10Mn-3Cu-2.5Al-1Nb austenitic steel at 500 °C in static Pb-Bi eutectic with concentration of dissolved oxygen alternating from ∼10-6 to 10-9 mass% for 10000 h","authors":"Valentyn Tsisar , Erich Stergar , Serguei Gavrilov , Eloa Lopes Maia , Wouter Van Renterghem , Pierre Louette , Stéphane Lucas","doi":"10.1016/j.corcom.2024.01.002","DOIUrl":"10.1016/j.corcom.2024.01.002","url":null,"abstract":"<div><div>A high-Mn austenitic steel Fe-14Cr-12Ni-10Mn-3Cu-2.5Al-1Nb was tested at 500 °C in static Pb-Bi eutectic for 10000 h. In the course of the test, oxygen concentration in liquid metal was cycled from ∼10<sup>-6</sup> to ∼10<sup>-9</sup> mass%, which provides oxidation and dissolution regimes, respectively. After 10000 h exposure steel showed formation of ferrite corrosion zone depleted in Mn, Ni, Cu, Cr, Fe and penetrated by Pb and Bi. Average depth of corrosion is 15±5 µm, while maximum corrosion depth locally reaches ∼35 µm. Dissolved Mn and Cr re-precipitated in the vicinity of steel surface in a form of stratified Mn-O/Cr-Mn-O oxide scale. Obtained results were compared to those of similar Al-alloyed austenitic steels with lower Mn content, which exhibited protective oxidation under same test conditions. The phenomenological mechanism of oxygen-driven de-alloying of steel in Pb-Bi[O] is discussed.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"17 ","pages":"Pages 1-11"},"PeriodicalIF":0.0,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142661861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Influences of heat flow on corrosion behavior and interfacial reaction kinetics 热流对腐蚀行为和界面反应动力学的影响

Corrosion Communications Pub Date : 2024-11-04 DOI: 10.1016/j.corcom.2024.05.002

Ze-Yu Zhou , Bo-Kai Liao , Kai Qi , Yu-Bing Qiu , Zhen-Yu Chen , Xing-Peng Guo

{"title":"Influences of heat flow on corrosion behavior and interfacial reaction kinetics","authors":"Ze-Yu Zhou , Bo-Kai Liao , Kai Qi , Yu-Bing Qiu , Zhen-Yu Chen , Xing-Peng Guo","doi":"10.1016/j.corcom.2024.05.002","DOIUrl":"10.1016/j.corcom.2024.05.002","url":null,"abstract":"<div><div>Heat transfer surface of heat exchange devices often suffers from severe corrosion, and their corrosion behavior is dramatically influenced by both surface temperature and heat flow. In this work, a novel heat transfer interface corrosion testing system was designed and built based on a simulation calculation analysis (COMSOL Multiphysics 6.0 software). By the aid of it, effects of different heat flux on corrosion performance of steel Q235 was investigated through mass loss and electrochemical methods in 0.5 mol/L H<sub>2</sub>SO<sub>4</sub> solution at controlled interface temperatures. Results indicate that variations in concentration and temperature impose a great contribution to corrosion rate but not corrosion mechanism. However, heat flow not only changed the concentration of reactants near the interfacial surface but also affected the rate and kinetic mechanism of corrosion. Positive heat flow could reduce corrosion rate of heat transfer surface, while negative heat flow increased corrosion rate. Heat flow significantly altered parameters of the corrosion reaction rate constant (such as pre-exponential factor, activation energy, entropy change, and enthalpy change), and an approximate exponential relationship between corrosion rate and heat flux was proposed.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"19 ","pages":"Pages 38-50"},"PeriodicalIF":0.0,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143883248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

PDA-modified sol-gel coating for long-lasting corrosion protection on Al alloy 3003 用于铝合金 3003 长效防腐蚀保护的 PDA 改性溶胶凝胶涂层

Corrosion Communications Pub Date : 2024-10-30 DOI: 10.1016/j.corcom.2023.11.006

Zhiyuan Feng , Jiao Li , Keqi Huang , Guoqiang Liu , Huanhuan Bai , Xin Huang , Jun Qi , Zhengwei Tang , Penghai Xu , Xiaofei Yang , Zheng Qu , Guozhe Meng

{"title":"PDA-modified sol-gel coating for long-lasting corrosion protection on Al alloy 3003","authors":"Zhiyuan Feng , Jiao Li , Keqi Huang , Guoqiang Liu , Huanhuan Bai , Xin Huang , Jun Qi , Zhengwei Tang , Penghai Xu , Xiaofei Yang , Zheng Qu , Guozhe Meng","doi":"10.1016/j.corcom.2023.11.006","DOIUrl":"10.1016/j.corcom.2023.11.006","url":null,"abstract":"<div><div>Within the realm of corrosion protection methods for Al alloys, sol-gel technique has garnered increasing attention. However, conventional sol-gel methodologies cannot provide adequate long-lasting corrosion protection to Al alloys when exposed to chloride-rich solutions. This paper introduces an innovative approach to substantially augment the corrosion resistance of aluminum alloys through utilization of polydopamine (PDA)-modified sol-gel films. Effort was made to fabricate a PDA-modified sol-gel coating and a systematic investigation was conducted thereof. Long-term corrosion performance of this coating in 3.5 wt.% NaCl solution was evaluated through electrochemical impedance spectroscopy (EIS). Results show that the low-frequency impedance of the PDA-modified sol-gel coating remains significantly high at 7.9 × 10<sup>5</sup> Ω·cm<sup>2</sup>, even after 36 d of immersion in 3.5 wt.% NaCl medium, indicative of excellent protective properties. It notably surpasses low-frequency impedance of the unmodified coating, which registers at 2.5 × 10<sup>4</sup> Ω·cm<sup>2</sup>. The incorporation of PDA into the sol-gel coating, facilitated by adsorption and diffusion mechanisms, serves to fill micrometer- and nanometer-scale defects of the coating, thereby markedly enhancing their compactness. Furthermore, despite its modest thickness of 9 μm, the PDA-modified coating exhibits enduring corrosion protection capabilities.</div></div>","PeriodicalId":100337,"journal":{"name":"Corrosion Communications","volume":"17 ","pages":"Pages 57-65"},"PeriodicalIF":0.0,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143464566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0