Corrosion Science最新文献

Unraveling β-NiAl degradation in aluminide coatings: A comparative study of isothermal oxidation and vacuum heat treatment

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-04-15 DOI: 10.1016/j.corsci.2025.112946

Guo-Hui Meng, Shan-Shan Li, Ya-Nan Wang, Pei-Pei Gui, Ming-Yang Zhang, Kai-Yu Guo, Mei-Jun Liu, Guan-Jun Yang

{"title":"Unraveling β-NiAl degradation in aluminide coatings: A comparative study of isothermal oxidation and vacuum heat treatment","authors":"Guo-Hui Meng, Shan-Shan Li, Ya-Nan Wang, Pei-Pei Gui, Ming-Yang Zhang, Kai-Yu Guo, Mei-Jun Liu, Guan-Jun Yang","doi":"10.1016/j.corsci.2025.112946","DOIUrl":"10.1016/j.corsci.2025.112946","url":null,"abstract":"<div><div>Aluminide coatings are essential for protecting gas turbine hot-section components, but their longevity is often limited by the degradation of the protective β-NiAl phase. This study aims to elucidate the fundamental mechanisms driving β-NiAl degradation by comparing its behavior in aluminide coatings deposited on a nickel-based superalloy under isothermal oxidation (1100°C, air) and vacuum heat treatment (1100°C, vacuum) conditions. The results demonstrate conclusively that β-NiAl degradation is primarily caused by coating-substrate interdiffusion, which leads to Ni enrichment within the coating, rather than by Al depletion resulting from the formation of the surface oxide scale. Degradation was observed to initiate preferentially at the coating surface, the interface between coating sublayers, and the coating-substrate interface. Furthermore, thinner coatings exhibited accelerated β-NiAl degradation due to enhanced Ni enrichment resulting from shorter diffusion distances. These findings highlight the importance of managing diffusion processes to enhance coating performance and durability in high-temperature environments.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"251 ","pages":"Article 112946"},"PeriodicalIF":7.4,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143834914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of an efficient pre-immersion treatment of B30 alloy used for power systems in an aggressive deep-sea environment

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-04-12 DOI: 10.1016/j.corsci.2025.112925

Tengfei Yin , Chunping Tian , Kaiyuan Zheng , Yang Zhao , Chun Ma , Tao Zhang , Fuhui Wang

引用次数: 0

Investigation of hydrogen embrittlement in welded joints of the L360MH pipeline steel for hydrogen transportation

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-04-12 DOI: 10.1016/j.corsci.2025.112940

Jiayu Bai , Min Zhang , Hongwei Ma , Zhaoxu Li , Wei Mao , Jihong Li , Jianxun Zhang

{"title":"Investigation of hydrogen embrittlement in welded joints of the L360MH pipeline steel for hydrogen transportation","authors":"Jiayu Bai , Min Zhang , Hongwei Ma , Zhaoxu Li , Wei Mao , Jihong Li , Jianxun Zhang","doi":"10.1016/j.corsci.2025.112940","DOIUrl":"10.1016/j.corsci.2025.112940","url":null,"abstract":"<div><div>In order to evaluate the susceptibility to hydrogen embrittlement(HE) of the L360MH hydrogen transportation pipeline, through electrochemical hydrogen charging (H-charging), mechanical property tests, microstructures and fracture analysis, the longitudinal and girth weld of the straight seam welding pipeline was assessed carefully. The conclusions indicate that both submerged arc welding (SAW) welded joint and tungsten inert-gas welding (TIG) welded joint exhibit high-strength matching characteristics, the strength of the SAW welded joint is about 10 % higher than that of the base metal (BM), while the strength of the (TIG) welded joint has increased by about 17 %, softening was observed in the heat-affected zone (HAZ) of the SAW welded joint, with about 9 % reduction in tensile strength compared to the BM. Upon H-charging, the HAZ of welded joints demonstrate a heightened susceptibility to HE. In contrast, the susceptibility to HE of the BM is nearly identical to that of the weld metal (WM), while the HAZ of the TIG welded joint is more susceptible to HE than the SAW welded joint. It has been found that there is a positive correlation between the quantity of low-angle grain boundaries (LAGBs), Kernel Average Misorientation (KAM), and the susceptibility to HE within the microstructure of welded joints. The fracture surface of the WM and HAZ of welded joints after H-charging exhibits a \"fish-eye\" river pattern with inclusions in the center area, as well as tear ridges and cleavage steps among other patterns.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"251 ","pages":"Article 112940"},"PeriodicalIF":7.4,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143829324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mitigating hydrogen embrittlement in CoCrNi alloy using a self-refilling nanoscale amorphous oxide layer 利用自填充纳米级无定形氧化物层减轻 CoCrNi 合金中的氢脆现象

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-04-12 DOI: 10.1016/j.corsci.2025.112941

Jiang Yi , Shuting Zhang , Dingding Zhu , Mujin Yang , Minglin He , Bo Du , Shuai Wang

{"title":"Mitigating hydrogen embrittlement in CoCrNi alloy using a self-refilling nanoscale amorphous oxide layer","authors":"Jiang Yi , Shuting Zhang , Dingding Zhu , Mujin Yang , Minglin He , Bo Du , Shuai Wang","doi":"10.1016/j.corsci.2025.112941","DOIUrl":"10.1016/j.corsci.2025.112941","url":null,"abstract":"<div><div>Designing hydrogen embrittlement-resistant materials exposed to extreme conditions has long been challenging. In this work, we introduced a strategy combining Si alloying with short-term oxidation to generate a nanoscale amorphous layer on CoCrNi alloy. The layer spontaneously formed in a high-temperature environment and was firmly bonded to the matrix. This nanoscale amorphous layer reduced the hydrogen penetration rate by 62 %. The hydrogen-charged CoCrNi alloy with amorphous layers still retained a high tensile strength of 890 MPa and a strain-to-failure of 57 %, while the embrittlement sensitivity is only 0.04 (which is 0.25 for bare CoCrNi), demonstrating an outstanding hydrogen embrittlement resistance. The nanoscale amorphous layer is an effective hydrogen barrier due to its dense structure, which lacks rapid hydrogen diffusion pathways such as dislocations and grain boundaries. Additionally, the amorphous layer reduces Cr depletion at subsurface grain boundaries and prevents the formation of pores induced by the Kirkendall effect. Compared to traditional coatings, the amorphous layer can be self-refilled at critical temperature after damage under external loading. This approach provides a long-run approach for designing hydrogen embrittlement-resistant alloys capable of withstanding extreme service conditions.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"251 ","pages":"Article 112941"},"PeriodicalIF":7.4,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143829323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Superior tribocorrosion resistance of Mg metal matrix composite by self-sealing PEO coating 利用自密封 PEO 涂层提高镁金属基复合材料的耐摩擦腐蚀性能

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-04-11 DOI: 10.1016/j.corsci.2025.112938

Yu-Fei Xie , Xiaopeng Lu , Jie Wang , Xian-Zong Wang , Shanglai Liu , You Zhang , Maria Serdechnova , Carsten Blawert , Mikhail L. Zheludkevich , Fuhui Wang

{"title":"Superior tribocorrosion resistance of Mg metal matrix composite by self-sealing PEO coating","authors":"Yu-Fei Xie , Xiaopeng Lu , Jie Wang , Xian-Zong Wang , Shanglai Liu , You Zhang , Maria Serdechnova , Carsten Blawert , Mikhail L. Zheludkevich , Fuhui Wang","doi":"10.1016/j.corsci.2025.112938","DOIUrl":"10.1016/j.corsci.2025.112938","url":null,"abstract":"<div><div>SiC-reinforced Mg metal matrix composites (SiC/Mg MMCs) show mechanical advantages but suffer from severe corrosion. Protective self-sealing plasma electrolytic oxidation (PEO) coatings were developed using a phosphate-zirconium-fluoride (P-Zr-F) electrolyte, where additives (F<sup>−</sup> and ZrF<sub>6</sub><sup>2−</sup>) were strategically introduced to form low-melting MgF<sub>2</sub> and stable ZrO<sub>2</sub> phases. The findings revealed two orders of magnitude increase in corrosion resistance and achieved 5.3 GPa hardness after PEO treatment. The coating on MMC exhibited exceptional tribocorrosion resistance, attributed to partial reactive SiC incorporation into coating and MgF<sub>2</sub>-stabilized friction at sliding interfaces. Accelerated Mg dissolution in MMC promoted MgF<sub>2</sub> formation during PEO process, while SiC restricted inward coating growth, enabling outward fluoride-rich layer development. This work advances surface-tailoring strategies for MMCs in extreme environments.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"251 ","pages":"Article 112938"},"PeriodicalIF":7.4,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143829322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microelectrochemical identification of the submicron-sized initiation site for pitting corrosion in 17–4PH stainless steel 微电化学鉴定 17-4PH 不锈钢点蚀的亚微米级引发点

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-04-11 DOI: 10.1016/j.corsci.2025.112939

Kota Ujihara, Masashi Nishimoto, Izumi Muto

{"title":"Microelectrochemical identification of the submicron-sized initiation site for pitting corrosion in 17–4PH stainless steel","authors":"Kota Ujihara, Masashi Nishimoto, Izumi Muto","doi":"10.1016/j.corsci.2025.112939","DOIUrl":"10.1016/j.corsci.2025.112939","url":null,"abstract":"<div><div>The initiation site of pitting corrosion of 17–4PH stainless steel in 1 M NaCl was identified by SEM/EDS analysis after micro-scale galvanostatic polarization. A commercially available 17–4PH stainless steel was solution treated at 1040°C for 1 h and subsequently tempered, and as-quenched, 482°C-tempered, and 621°C-tempered specimens were made. All specimens contained MnS and NbC particles with a size of approximately 500 nm. In addition, the precipitation of ε-Cu was observed in the tempered specimens. In 1 M NaCl at 25°C, the pitting potential measured in conventional potentiodynamic polarization decreased by tempering, suspecting that ε-Cu was the initiation site for pitting corrosion. However, micro-scale galvanostatic polarization at 3 mA m<sup>−2</sup> on a 500 μm × 500 μm electrode allowed the pit diameter to be controlled to approximately from 500 nm to 1 μm, and SEM/EDS analysis after the polarization revealed that the initiation site of pitting of the tempered specimens was MnS, not ε-Cu. The results provide significant insight into the improvement of the pitting corrosion resistance of 17–4PH stainless steel and indicate that the pitting corrosion resistance can be improved by surface treatments to remove MnS or by controlling the MnS composition with trace amounts of alloying elements. Fabricating a small working electrode and performing galvanostatic polarization are promising techniques for identifying submicron-sized initiation sites for pitting corrosion.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"251 ","pages":"Article 112939"},"PeriodicalIF":7.4,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cavitation erosion of the AA7050 aluminum alloy in 3.5 wt% NaCl solution—Part 2: an impedance investigation of the effect of cavitation intensity on interfacial states

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-04-11 DOI: 10.1016/j.corsci.2025.112936

Chengcheng Pan , Yashar Behnamian , Yujie Guo , Zhenbo Qin , Wenbin Hu , Da-Hai Xia , Bernard Tribollet

引用次数: 0

Effect of stress and strain on hydrogen permeation process in X80 pipeline steel

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-04-11 DOI: 10.1016/j.corsci.2025.112934

Shi Zheng , Guijuan Zhou , Shuhui Chen , Wenchao Li , Hongbo Zhang , Yi Qin , Hai Chang , Shi Pu , Feifei Huang , Ke Yang , Zilong Zhao , Chunyin Zhou , Ding Zhang , Wenyue Zheng , Ying Jin

引用次数: 0

Bridging static corrosion behavior and stress corrosion cracking susceptibility in dilute Mg-Zn-Ca alloys

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-04-09 DOI: 10.1016/j.corsci.2025.112924

Xun Zhang , Dawei Wang , Fuyong Cao , Cheng Wang , Min Zha

引用次数: 0

Effect of heat-affected zone on electrochemical corrosion behavior of welded joint with multi-metallographic structure zone

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-04-08 DOI: 10.1016/j.corsci.2025.112935

Zhendong Li, Zhongqiu Fu, Longyu Wei, Bohai Ji

{"title":"Effect of heat-affected zone on electrochemical corrosion behavior of welded joint with multi-metallographic structure zone","authors":"Zhendong Li, Zhongqiu Fu, Longyu Wei, Bohai Ji","doi":"10.1016/j.corsci.2025.112935","DOIUrl":"10.1016/j.corsci.2025.112935","url":null,"abstract":"<div><div>The welded joint is a multi-metallographic structure zone composed of the weld metal, the heat-affected zone, and the base metal. Most current research on welded joints primarily focus on the weld metal and base metal. Even when the heat-affected zone is considered, the discussion is mostly limited to corrosion test results, lacking in-depth analysis of corrosion behavior from an electrochemical perspective. To clarify the electrochemical corrosion process of multi-microstructure structures in welded joints, electrochemical tests were conducted to obtain the electrochemical parameters of each metallographic structure. A corrosion finite element model was established based on the microstructure morphology of each metallographic structure, and the validity of the finite element model was verified through corrosion tests. The influence mechanism of the heat-affected zone in the corrosion process of welded joints was elucidated. The effect of the width ratio of the heat-affected zone to the weld zone on the corrosion rate was analyzed. The results show that the multi-metallographic corrosion model of welded joints based on surface morphology can effectively reflect the real corrosion situation. The effect of the heat-affected zone on the corrosion behavior of welded joints is mainly reflected in the change of potential difference and the change of potential distribution in the weld zone. With an increase in the width ratio between the heat-affected zone and the weld zone, the difference in current density at the boundaries of each metallographic structure decreases, and the corrosion morphology becomes closer to uniform corrosion.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"251 ","pages":"Article 112935"},"PeriodicalIF":7.4,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143814911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0