Corrosion Science最新文献_第8页

Enhanced hot corrosion resistance of AlCoCrFeNi2.1 high entropy alloy coatings by extreme high-speed laser cladding 通过极高速激光熔覆增强 AlCoCrFeNi2.1 高熵合金涂层的耐热腐蚀性能

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2024-09-26 DOI: 10.1016/j.corsci.2024.112486

Li Zhang, Yan Ji, Yunxin Wang, Bin Yang

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Corrosion resistance of multicomponent disilicate (Ho0.2Er0.2Tm0.2Yb0.2Lu0.2)2Si2O7 against CMAS and volcanic ash 多组分二硅酸盐（Ho0.2Er0.2Tm0.2Yb0.2Lu0.2）2Si2O7 对 CMAS 和火山灰的抗腐蚀性能

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2024-09-25 DOI: 10.1016/j.corsci.2024.112484

Wenbo Zhi , Yang Wu , Zhao Zhang , Min Luo , Bangyang Zhou , Wei Shao , Xingye Guo , Zheng Zhou , Dingyong He

{"title":"Corrosion resistance of multicomponent disilicate (Ho0.2Er0.2Tm0.2Yb0.2Lu0.2)2Si2O7 against CMAS and volcanic ash","authors":"Wenbo Zhi , Yang Wu , Zhao Zhang , Min Luo , Bangyang Zhou , Wei Shao , Xingye Guo , Zheng Zhou , Dingyong He","doi":"10.1016/j.corsci.2024.112484","DOIUrl":"10.1016/j.corsci.2024.112484","url":null,"abstract":"<div><div>With the increasing operating temperature of gas turbine engines, calcium-magnesium-aluminosilicate (CMAS) poses a serious threat on environmental barrier coatings (EBCs) applied on hot-sections of aero-engines. Here, we have synthesized a novel multicomponent disilicate—(Ho0.2Er0.2Tm0.2Yb0.2Lu0.2)2Si2O7 (brief to (5RE0.2)2Si2O7), and comparatively studied its performance in the presence of synthesized CMAS and natural volcanic ash at 1400ºC. In comparison with Yb2Si2O7, (5RE0.2)2Si2O7 has a shorter Si-O bond length and a larger RE-O bond length because of the larger average RE3+ radius. After CMAS corrosion, some apatite grains precipitate at the CMAS/(5RE0.2)2Si2O7 interface to develop a loose reaction layer, exhibiting a higher corrosion resistance than Yb2Si2O7. Meanwhile, the consumption of CaO and release of SiO2 during the chemical reaction process increase the viscosity of CMAS to some extent and thus weaken its infiltration propensity. For the volcanic ash case, it directly infiltrates into the interior of (5RE0.2)2Si2O7 along grain boundaries without any reaction due to the relatively low CaO content, exhibiting a more serious attacking behavior. In addition, (5RE0.2)2Si2O7 effectively increases the contact angle of molten volcanic ash due to its lower surface energy. These finds here provide a better understanding for the design and application of next-generation EBC material.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"240 ","pages":"Article 112484"},"PeriodicalIF":7.4,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142328149","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}

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Superior hydrogen embrittlement resistance of CoCrNi-based medium-entropy alloy via coherent precipitation and grain boundary strengthening 通过相干析出和晶界强化提高钴铬镍基中熵合金的抗氢脆性能

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2024-09-24 DOI: 10.1016/j.corsci.2024.112483

Saiyu Liu , Zhao Xu , Yujie Zhu , Rongjian Shi , Kewei Gao , Xiaolu Pang

{"title":"Superior hydrogen embrittlement resistance of CoCrNi-based medium-entropy alloy via coherent precipitation and grain boundary strengthening","authors":"Saiyu Liu , Zhao Xu , Yujie Zhu , Rongjian Shi , Kewei Gao , Xiaolu Pang","doi":"10.1016/j.corsci.2024.112483","DOIUrl":"10.1016/j.corsci.2024.112483","url":null,"abstract":"<div><div>The strength and HE resistance of CoCrNi-based medium-entropy alloys were simultaneously improved via adding 264 at.ppm boron and the precipitation of nanoscale coherent L12 (γ'-type) particles. After aging treatment, the proportion of intergranular cracking decreased from 58.2 % in the solution-treated alloy to 27.6 %. Meanwhile, the yield strength increased by 102 %, and the ductility decreased by only 35.9 %. Notably, the elongation loss is only 9.4 %. On one hand, the added boron segregates to the grain boundaries (GBs), enhance the GB cohesive strength. On the other hand, precipitated L12 captures H, thereby reducing the concentration of diffusible H in the matrix and decelerating the diffusion rate of H. During plastic deformation, the L12 particles impedes the movement of dislocations and reduces stress concentration at GBs. This is associated with the presence of a completely coherent interface between the precipitated phase and face centered cubic matrix. This research provides insights into the beneficial effects of L12 phase precipitation and GB boron segregation on the HE resistance of M/HEAs.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"240 ","pages":"Article 112483"},"PeriodicalIF":7.4,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142320247","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

A life prediction model for P110S steel in deep-well environments with H2S/CO2 coexistence based on multi-factor chemometric drive 基于多因素化学计量驱动的 H2S/CO2 共存深井环境中 P110S 钢寿命预测模型

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2024-09-24 DOI: 10.1016/j.corsci.2024.112475

Hao Xue , Qiuying Gao , Yang Zhao , Xuanpeng Li , Ji Chen , Tao Zhang , Fuhui Wang

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Decomposition products of oxygen scavengers and their effect on corrosion of steam generator materials – I. Diethyl-hydroxylamine and carbohydrazide 氧清除剂的分解产物及其对蒸汽发生器材料腐蚀的影响 - I. 二乙基羟胺和碳酰肼

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2024-09-23 DOI: 10.1016/j.corsci.2024.112476

K. Sipilä , P. Ferreirós , T. Ikäläinen , A. Mikkelson , I. Betova , M. Bojinov

{"title":"Decomposition products of oxygen scavengers and their effect on corrosion of steam generator materials – I. Diethyl-hydroxylamine and carbohydrazide","authors":"K. Sipilä , P. Ferreirós , T. Ikäläinen , A. Mikkelson , I. Betova , M. Bojinov","doi":"10.1016/j.corsci.2024.112476","DOIUrl":"10.1016/j.corsci.2024.112476","url":null,"abstract":"<div><div>Hydrazine used as oxygen scavenger in the secondary circuit of pressurized water reactors is hazardous to the environment and potentially carcinogenic, thus, suitable replacement chemicals for it are actively sought. In the present paper, decomposition products of two potential replacements – carbohydrazide and diethyl-hydroxylamine – are analyzed, and their effect on secondary water chemistry and corrosion of the main steam generator materials – carbon steel 22 K, stainless steel 0X18H10T and Alloy 690 – is studied by in-situ electrochemical techniques complemented by ex-situ analyses of the formed oxides by spectroscopic and microscopic methods. Quantitative interpretation of the electrochemical impedance data with the Mixed-Conduction Model allowed for the estimation of oxidation and corrosion release rates depending on scavenger formulation, alloy type and temperature. Conclusions on the extent of interaction of decomposition products with construction materials are drawn based on the experimental and calculational results.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"240 ","pages":"Article 112476"},"PeriodicalIF":7.4,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142328143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Corrosion mechanism of press-hardened steel with zinc coating in controlled atmospheric conditions: A laboratory investigation 带锌涂层的冲压硬化钢在受控大气条件下的腐蚀机理：实验室研究

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2024-09-23 DOI: 10.1016/j.corsci.2024.112477

Nikola Macháčková , Darya Rudomilova , Tomáš Prošek , Gerald Luckeneder

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Experimental and crystal plasticity study on hydrogen-assisted fatigue crack growth behavior of IN625 superalloy IN625 超合金氢辅助疲劳裂纹生长行为的实验和晶体塑性研究

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2024-09-23 DOI: 10.1016/j.corsci.2024.112480

Kaidi Li , Bin Tang , Wenyuan Zhang , Heng Zhang , Jinhua Dai , Mengqi Zhang , Zhenshun Zhang , Xichuan Cao , Jiangkun Fan , Jinshan Li

引用次数: 0

The respective roles of sulfate-reducing bacteria (SRB) and iron-oxidizing bacteria (IOB) in the mixed microbial corrosion process of carbon steel pipelines 硫酸盐还原菌（SRB）和铁氧化菌（IOB）在碳钢管道混合微生物腐蚀过程中各自的作用

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2024-09-23 DOI: 10.1016/j.corsci.2024.112479

Xiaozhen Liu , Yuhui Wang , Yingwei Song , Wenfang Liu , Jin Zhang , Nana Li , Kaihui Dong , Yong Cai , En-Hou Han

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The influence of Nickel on the corrosion protection of FeCrNi alloys after breakaway corrosion at 600 °C 600 °C 下断裂腐蚀后镍对铁铬镍合金腐蚀保护的影响

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2024-09-23 DOI: 10.1016/j.corsci.2024.112473

A. Persdotter , H. Larsson , J. Eklund , S. Bigdeli , T. Jonsson

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Insight into the effect of oxygen content on the corrosion behavior of X70 pipeline steel in a typical simulated soil solution by dissolution-diffusion-deposition model 通过溶解-扩散-沉积模型深入了解氧气含量对典型模拟土壤溶液中 X70 管线钢腐蚀行为的影响

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2024-09-23 DOI: 10.1016/j.corsci.2024.112478

Di Xu , Tianqi Chen , Guangming Yang , Liang Sun , Chengwei Xu , Chao Liu , Zhiyong Liu , Cuiwei Du , Xiaogang Li

{"title":"Insight into the effect of oxygen content on the corrosion behavior of X70 pipeline steel in a typical simulated soil solution by dissolution-diffusion-deposition model","authors":"Di Xu , Tianqi Chen , Guangming Yang , Liang Sun , Chengwei Xu , Chao Liu , Zhiyong Liu , Cuiwei Du , Xiaogang Li","doi":"10.1016/j.corsci.2024.112478","DOIUrl":"10.1016/j.corsci.2024.112478","url":null,"abstract":"<div><div>In this work, traditional experimental methods were employed to investigate the effect of dissolved oxygen (DO) on the corrosion behavior of X70 pipeline steel in a low-temperature acidic-bentonite simulation soil solution. A novel model was utilized to describe the complex dissolution-diffusion-deposition process at the metal/solution interface. This model aims to enhance comprehension of the dynamics of the corrosion product layer of X70 pipeline steel under varying oxygen concentrations, as well as the effects of alloying elements (Fe, Cr and Cu) on the corrosion resistance. By integrating traditional experimental methods with calculation models, the results reveal a positive correlation between DO levels and the corrosion rate X70 pipeline steel. This relationship is attributed to the distinct characteristics of the corrosion product layers formed under different DO conditions. At low DO levels, the nucleation and growth rates of oxide/hydroxide are slower, leading to the formation of a denser, more protective corrosion product layer. Conversely, at high DO levels, the accelerated nucleation and growth rates produce larger oxide/hydroxide particles, resulting in a porous and less protective corrosion product layer. Furthermore, the variation in the protective qualities of the corrosion product layers under different DO conditions causes differences in corrosion morphology: X70 pipeline steel exhibits localized corrosion in low DO environments and more uniform corrosion under high DO conditions.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"240 ","pages":"Article 112478"},"PeriodicalIF":7.4,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142320244","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