Pub Date : 2024-11-14DOI: 10.1016/j.corsci.2024.112564
Yunyun Ge , Jiangbo Cheng , Lin Xue , Baosen Zhang , Sheng Hong , Xiubing Liang , Shaogang Wang , Xiancheng Zhang
Pore defect is a primary bottleneck limiting corrosion resistance of the coatings. The relationship between porosity and corrosion behaviors of HVAF-sprayed Co21Fe14Ni8Cr16Mo16C15B10 high entropy metallic glass (HE-MG) coatings was investigated by 3D XRT, XPS, SKPFM and SVET techniques. The potential difference between pores and surrounding regions expedites corrosion tendency. The corrosion current density of the coating and concentration of defects in passivation film increase as a function of porosity, thereby degrading corrosion resistance. The lowest porosity coating displays exceptional anti-corrosion due to compact films enriched with Cr2O3 and Mo4+ oxides. These findings provide valuable insights for designing corrosion-resistance coatings.
{"title":"Pore defect and corrosion behavior of HVAF-sprayed Co21Fe14Ni8Cr16Mo16C15B10 high entropy metallic glass coatings","authors":"Yunyun Ge , Jiangbo Cheng , Lin Xue , Baosen Zhang , Sheng Hong , Xiubing Liang , Shaogang Wang , Xiancheng Zhang","doi":"10.1016/j.corsci.2024.112564","DOIUrl":"10.1016/j.corsci.2024.112564","url":null,"abstract":"<div><div>Pore defect is a primary bottleneck limiting corrosion resistance of the coatings. The relationship between porosity and corrosion behaviors of HVAF-sprayed Co<sub>21</sub>Fe<sub>14</sub>Ni<sub>8</sub>Cr<sub>16</sub>Mo<sub>16</sub>C<sub>15</sub>B<sub>10</sub> high entropy metallic glass (HE-MG) coatings was investigated by 3D XRT, XPS, SKPFM and SVET techniques. The potential difference between pores and surrounding regions expedites corrosion tendency. The corrosion current density of the coating and concentration of defects in passivation film increase as a function of porosity, thereby degrading corrosion resistance. The lowest porosity coating displays exceptional anti-corrosion due to compact films enriched with Cr<sub>2</sub>O<sub>3</sub> and Mo<sup>4+</sup> oxides. These findings provide valuable insights for designing corrosion-resistance coatings.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"242 ","pages":"Article 112564"},"PeriodicalIF":7.4,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657930","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}
Pub Date : 2024-11-14DOI: 10.1016/j.corsci.2024.112566
Lu Zhang , Xin Zhang , Jianwei Dai , Juyi Yang , Zijian Huang , Zhihai Huang , Chao Guo , Jing Bai , Feng Xue , Linyuan Han , Chenglin Chu
Biodegradable Zn vascular stents are compressed by the vessel wall while maintaining blood flow, which may lead to unpredictable deterioration of the stent due to stress corrosion. This work investigated the mechanical and corrosion behavior of Zn in a coupled environment of compressive stress and artificial plasma. The corrosion rate of Zn increases as compressive stress rises. However, the acceleration effect gradually decreased in contrast to our previous work on tensile stresses, which can be attributed to the tension-compression asymmetry of Zn-metal. Meanwhile, the corrosion mechanism of Zn was compared, and numerical models for stresses and corrosion rates were established.
{"title":"Effects of compressive stress on the corrosion behavior of biodegradable zinc with tension-compression asymmetry under simulated physiological environment","authors":"Lu Zhang , Xin Zhang , Jianwei Dai , Juyi Yang , Zijian Huang , Zhihai Huang , Chao Guo , Jing Bai , Feng Xue , Linyuan Han , Chenglin Chu","doi":"10.1016/j.corsci.2024.112566","DOIUrl":"10.1016/j.corsci.2024.112566","url":null,"abstract":"<div><div>Biodegradable Zn vascular stents are compressed by the vessel wall while maintaining blood flow, which may lead to unpredictable deterioration of the stent due to stress corrosion. This work investigated the mechanical and corrosion behavior of Zn in a coupled environment of compressive stress and artificial plasma. The corrosion rate of Zn increases as compressive stress rises. However, the acceleration effect gradually decreased in contrast to our previous work on tensile stresses, which can be attributed to the tension-compression asymmetry of Zn-metal. Meanwhile, the corrosion mechanism of Zn was compared, and numerical models for stresses and corrosion rates were established.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"242 ","pages":"Article 112566"},"PeriodicalIF":7.4,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657718","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}
Pub Date : 2024-11-13DOI: 10.1016/j.corsci.2024.112565
Shuo Ma, Panmei Liu, Yongchang Liu, Zumin Wang
The effect of water vapor on oxidation behaviors of amorphous and crystalline Cu-Zr alloys has been comprehensively investigated. Compared with dry oxidation, water vapor retards the oxidation of amorphous Cu-Zr alloy by lowering internal ionic diffusion and leading to the formation of stable crystalline oxide layers. In contrast, water vapor accelerates the oxidation of crystalline Cu-Zr alloy 10 times by enhancing the activity and outward diffusion of Cu and promoting an unexpected synchronous oxidation of Zr and Cu. This study would change the perspective from focusing exclusively on the detrimental effect of water to considering its suppression on surface oxidation.
{"title":"Wet oxidation of amorphous and crystalline Cu–Zr alloys probed by thermodynamic, kinetic, and instrumental analyses","authors":"Shuo Ma, Panmei Liu, Yongchang Liu, Zumin Wang","doi":"10.1016/j.corsci.2024.112565","DOIUrl":"10.1016/j.corsci.2024.112565","url":null,"abstract":"<div><div>The effect of water vapor on oxidation behaviors of amorphous and crystalline Cu-Zr alloys has been comprehensively investigated. Compared with dry oxidation, water vapor retards the oxidation of amorphous Cu-Zr alloy by lowering internal ionic diffusion and leading to the formation of stable crystalline oxide layers. In contrast, water vapor accelerates the oxidation of crystalline Cu-Zr alloy 10 times by enhancing the activity and outward diffusion of Cu and promoting an unexpected synchronous oxidation of Zr and Cu. This study would change the perspective from focusing exclusively on the detrimental effect of water to considering its suppression on surface oxidation.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"242 ","pages":"Article 112565"},"PeriodicalIF":7.4,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657929","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}
Pub Date : 2024-11-10DOI: 10.1016/j.corsci.2024.112563
S V V N Siva Rao , Darothi Bairagi , Sumantra Mandal , N.D. Chakladar , Soumitra Paul
This study investigates the influence of ultrasonic-assisted abrasive peening (UAP) on the microstructural evolution and corrosion characteristics of Al-6061 alloy. A 3 min peened sample demonstrated a 50 % reduction in grain size and a 14-fold increase in residual stress compared to its unpeened state. The corrosion rate for the 3 min peening also decreased to 9.42 × 10−3 mm/year, compared to 89.4 × 10−3 mm/year for the unpeened alloy specimen. Peening beyond 3 min was observed to be susceptible to pitting. Hence, the UAP is found to be an effective method of improving the corrosion resistance of Al-6061.
{"title":"Effect of ultrasonic-assisted abrasive peening on near-surface characteristics and electrochemical behaviour of Al-6061 alloy","authors":"S V V N Siva Rao , Darothi Bairagi , Sumantra Mandal , N.D. Chakladar , Soumitra Paul","doi":"10.1016/j.corsci.2024.112563","DOIUrl":"10.1016/j.corsci.2024.112563","url":null,"abstract":"<div><div>This study investigates the influence of ultrasonic-assisted abrasive peening (UAP) on the microstructural evolution and corrosion characteristics of Al-6061 alloy. A 3 min peened sample demonstrated a 50 % reduction in grain size and a 14-fold increase in residual stress compared to its unpeened state. The corrosion rate for the 3 min peening also decreased to 9.42 × 10<sup>−3</sup> mm/year, compared to 89.4 × 10<sup>−3</sup> mm/year for the unpeened alloy specimen. Peening beyond 3 min was observed to be susceptible to pitting. Hence, the UAP is found to be an effective method of improving the corrosion resistance of Al-6061.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"242 ","pages":"Article 112563"},"PeriodicalIF":7.4,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657925","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}
Pub Date : 2024-11-09DOI: 10.1016/j.corsci.2024.112561
Yunqing Xiong , Zixuan Xu , Tiansui Zhang , Guangfang Li , Zhuo Huang , Yi Fan , Hongfang Liu
High manganese steel is a new generation of material for the fabrication of liquefied natural gas (LNG) storage tanks. The corrosion behavior of high manganese steel induced by iron-oxidizing bacteria (IOB) living in wastewater from LNG tanks bottom was investigated. The results revealed that IOB can induce a generation of a dense and thick biotransformation film on the steel. Interestingly, the biotransformation film could be able to reduce the corrosion rate of high manganese steel by 71 % and alleviate the formation of corrosion pits. A corrosion inhibition mechanism is postulated, elucidating the protective role of the iron-manganese oxide composite biofilm.
{"title":"Corrosion behavior of high manganese steel by iron-oxidizing bacteria in wastewater at the bottom of liquefied natural gas storage tanks","authors":"Yunqing Xiong , Zixuan Xu , Tiansui Zhang , Guangfang Li , Zhuo Huang , Yi Fan , Hongfang Liu","doi":"10.1016/j.corsci.2024.112561","DOIUrl":"10.1016/j.corsci.2024.112561","url":null,"abstract":"<div><div>High manganese steel is a new generation of material for the fabrication of liquefied natural gas (LNG) storage tanks. The corrosion behavior of high manganese steel induced by iron-oxidizing bacteria (IOB) living in wastewater from LNG tanks bottom was investigated. The results revealed that IOB can induce a generation of a dense and thick biotransformation film on the steel. Interestingly, the biotransformation film could be able to reduce the corrosion rate of high manganese steel by 71 % and alleviate the formation of corrosion pits. A corrosion inhibition mechanism is postulated, elucidating the protective role of the iron-manganese oxide composite biofilm.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"242 ","pages":"Article 112561"},"PeriodicalIF":7.4,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657719","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}
Pub Date : 2024-11-09DOI: 10.1016/j.corsci.2024.112552
Dong Hu , Tijian Gu , Zhen Cui , Sten Vollebregt , Xuejun Fan , Guoqi Zhang , Jiajie Fan
{"title":"Corrigendum to “Insights into the high-sulphur aging of sintered silver nanoparticles: An experimental and ReaxFF study” [Corros. Sci. 192 (2021) 109846]","authors":"Dong Hu , Tijian Gu , Zhen Cui , Sten Vollebregt , Xuejun Fan , Guoqi Zhang , Jiajie Fan","doi":"10.1016/j.corsci.2024.112552","DOIUrl":"10.1016/j.corsci.2024.112552","url":null,"abstract":"","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"241 ","pages":"Article 112552"},"PeriodicalIF":7.4,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663729","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}
Pub Date : 2024-11-08DOI: 10.1016/j.corsci.2024.112562
Qiancheng Zhao , Hong Luo , Milos B. Djukic , Zhimin Pan , Hongxu Cheng , R.K. Islamgaliev
The hydrogen-induced cracking behavior and mechanism of an L12-strengthened Ni50Cr20Co15Al10V5 high entropy alloy was evaluated using the tensile test after hydrogen charging. The microstructures and hydrogen-induced cracks were characterized by electron backscatter diffraction and electron channeling contrast imaging methods. The results revealed that hydrogen decreased the strain hardening rate and induced pronounced cracks, leading to significant degradation in elongation. After deformation, the local strain was concentrated in the precipitate-matrix interfaces. The precipitate-matrix boundary and the interior of precipitates were prone to hydrogen embrittlement, where hydrogen-induced cracks tended to propagate, attributing to the hydrogen-enhanced decohesion mechanism.
{"title":"Hydrogen-induced crack behavior of a precipitation-strengthened Ni50Cr20Co15Al10V5 high entropy alloy","authors":"Qiancheng Zhao , Hong Luo , Milos B. Djukic , Zhimin Pan , Hongxu Cheng , R.K. Islamgaliev","doi":"10.1016/j.corsci.2024.112562","DOIUrl":"10.1016/j.corsci.2024.112562","url":null,"abstract":"<div><div>The hydrogen-induced cracking behavior and mechanism of an L1<sub>2</sub>-strengthened Ni<sub>50</sub>Cr<sub>20</sub>Co<sub>15</sub>Al<sub>10</sub>V<sub>5</sub> high entropy alloy was evaluated using the tensile test after hydrogen charging. The microstructures and hydrogen-induced cracks were characterized by electron backscatter diffraction and electron channeling contrast imaging methods. The results revealed that hydrogen decreased the strain hardening rate and induced pronounced cracks, leading to significant degradation in elongation. After deformation, the local strain was concentrated in the precipitate-matrix interfaces. The precipitate-matrix boundary and the interior of precipitates were prone to hydrogen embrittlement, where hydrogen-induced cracks tended to propagate, attributing to the hydrogen-enhanced decohesion mechanism.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"241 ","pages":"Article 112562"},"PeriodicalIF":7.4,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663727","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}
Pub Date : 2024-11-06DOI: 10.1016/j.corsci.2024.112560
Jiacheng Niu , Chenliang Chu , Qiang Chen , Guoliang Hou , Weiping Chen , Tiwen Lu , Ning Yao , Haobo Cao , Zhiqiang Fu
The influence of disordered and ordered body-centered cubic (BCC-β and B2-β′) secondary phases on the mechanical properties and cavitation erosion-corrosion (CE-C) behavior of BCC/B2 strengthened FeNiCrMoAl-based multi-principal element alloy (MPEA) was systematically investigated. An increased β/β′ phases content enhanced the MPEAs’ strengths while maintaining good ductility. However, this increases also led to a higher proportion of loosely bound Al2O3 within the passivation film, resulting in a slight reduction in electrochemical corrosion performance. Remarkably, in a NaCl solution, the increased β/β′ phases significantly improved the MPEAs’ resistance to CE-C, attributed to the outstanding corrosion resistance and mechanical properties which could withstand elastic strain damage and plastic deformation.
{"title":"Microstructure, mechanical behavior, and cavitation erosion-corrosion resistance of the BCC/B2 strengthened FeNiCrMoAl-based multi-principal element alloys","authors":"Jiacheng Niu , Chenliang Chu , Qiang Chen , Guoliang Hou , Weiping Chen , Tiwen Lu , Ning Yao , Haobo Cao , Zhiqiang Fu","doi":"10.1016/j.corsci.2024.112560","DOIUrl":"10.1016/j.corsci.2024.112560","url":null,"abstract":"<div><div>The influence of disordered and ordered body-centered cubic (BCC-β and B2-β′) secondary phases on the mechanical properties and cavitation erosion-corrosion (CE-C) behavior of BCC/B2 strengthened FeNiCrMoAl-based multi-principal element alloy (MPEA) was systematically investigated. An increased β/β′ phases content enhanced the MPEAs’ strengths while maintaining good ductility. However, this increases also led to a higher proportion of loosely bound Al<sub>2</sub>O<sub>3</sub> within the passivation film, resulting in a slight reduction in electrochemical corrosion performance. Remarkably, in a NaCl solution, the increased β/β′ phases significantly improved the MPEAs’ resistance to CE-C, attributed to the outstanding corrosion resistance and mechanical properties which could withstand elastic strain damage and plastic deformation.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"241 ","pages":"Article 112560"},"PeriodicalIF":7.4,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663724","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}
Pub Date : 2024-11-06DOI: 10.1016/j.corsci.2024.112559
Licheng Chen, Yawen Zhao, Xianglin Chen, Hefei Ji, Bin Su, Piheng Chen, Xiaolin Wang
Niobium is introduced to uranium to enhance the corrosion resistance of metallic uranium, while duplex U-Nb alloy exhibits anomalous degradation to hydrogen corrosion. To understand the underlying mechanism, we employed high-resolution transmission electron microscopy (HRTEM) and density functional theory (DFT) calculations to characterize the structure of the phase interface in duplex U-Nb alloy and its interaction with hydrogen and vacancy. Combined with the different behaviors of hydrogen in the two phases of the duplex U-Nb alloy, a mechanism contributing to the observed abnormal degradation is proposed, corroborated by the special distribution of hydride within the duplex U-Nb alloy.
{"title":"Insight into the mechanism of abnormal degradation of duplex U-Nb alloy","authors":"Licheng Chen, Yawen Zhao, Xianglin Chen, Hefei Ji, Bin Su, Piheng Chen, Xiaolin Wang","doi":"10.1016/j.corsci.2024.112559","DOIUrl":"10.1016/j.corsci.2024.112559","url":null,"abstract":"<div><div>Niobium is introduced to uranium to enhance the corrosion resistance of metallic uranium, while duplex U-Nb alloy exhibits anomalous degradation to hydrogen corrosion. To understand the underlying mechanism, we employed high-resolution transmission electron microscopy (HRTEM) and density functional theory (DFT) calculations to characterize the structure of the phase interface in duplex U-Nb alloy and its interaction with hydrogen and vacancy. Combined with the different behaviors of hydrogen in the two phases of the duplex U-Nb alloy, a mechanism contributing to the observed abnormal degradation is proposed, corroborated by the special distribution of hydride within the duplex U-Nb alloy.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"242 ","pages":"Article 112559"},"PeriodicalIF":7.4,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142657931","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}
Pub Date : 2024-11-05DOI: 10.1016/j.corsci.2024.112556
Ehsan Entezari , Jorge Luis González Velázquez , Hojjat Sabzali , Jerzy Szpunar
This study proposes an empirical model to predict the kinetics of hydrogen-induced cracking (HIC) growth rate in pipeline steels based on experimentally measured hydrogen diffusion parameters and spatial distribution of microstructural features previously identified to have a role on HIC kinetics. In the experimental work, the HIC was induced by electrochemical cathodic charging and the crack growth was monitored by ultrasonic inspection. Optical and scanning electron microscopy were used to determine the spatial distribution parameters of non-metallic inclusions, and the ferrite grain and second phase characteristics. The hydrogen microprint technique used to visualize hydrogen diffusion path in the microstructure and the hydrogen diffusion parameters were determined by hydrogen permeation tests. Results show that NMI shape affects HIC nucleation sites, using student's t-distribution, while ferrite grain characteristics affect HIC growth rates, with X70–2 and X56 steel plates recorded highest HIC growth rate. The Log-Normal distribution model, supported by statistical analysis, effectively predicts HIC growth rates compared with Weibull and Gamma distribution models.
本研究根据实验测得的氢扩散参数和以前确定的对氢致裂纹动力学有影响的微观结构特征的空间分布，提出了一个预测管道钢中氢致裂纹（HIC）生长率动力学的经验模型。在实验工作中，通过电化学阴极充电诱导 HIC，并通过超声波检测监控裂纹生长。光学显微镜和扫描电子显微镜用于确定非金属夹杂物的空间分布参数以及铁素体晶粒和第二相特征。氢显微指纹技术用于观察微结构中的氢扩散路径，氢扩散参数则通过氢渗透试验确定。结果表明，采用学生 t 分布，NMI 形状会影响氢渗碳成核点，而铁素体晶粒特征会影响氢渗碳增长率，其中 X70-2 和 X56 钢板的氢渗碳增长率最高。与 Weibull 和 Gamma 分布模型相比，统计分析支持的对数正态分布模型能有效预测 HIC 增长率。
{"title":"An empirical model of the kinetics of hydrogen-induced cracking in pipeline steel, using statistical distribution models and considering microstructural characteristics and hydrogen diffusion parameters","authors":"Ehsan Entezari , Jorge Luis González Velázquez , Hojjat Sabzali , Jerzy Szpunar","doi":"10.1016/j.corsci.2024.112556","DOIUrl":"10.1016/j.corsci.2024.112556","url":null,"abstract":"<div><div>This study proposes an empirical model to predict the kinetics of hydrogen-induced cracking (HIC) growth rate in pipeline steels based on experimentally measured hydrogen diffusion parameters and spatial distribution of microstructural features previously identified to have a role on HIC kinetics. In the experimental work, the HIC was induced by electrochemical cathodic charging and the crack growth was monitored by ultrasonic inspection. Optical and scanning electron microscopy were used to determine the spatial distribution parameters of non-metallic inclusions, and the ferrite grain and second phase characteristics. The hydrogen microprint technique used to visualize hydrogen diffusion path in the microstructure and the hydrogen diffusion parameters were determined by hydrogen permeation tests. Results show that NMI shape affects HIC nucleation sites, using student's t-distribution, while ferrite grain characteristics affect HIC growth rates, with X70–2 and X56 steel plates recorded highest HIC growth rate. The Log-Normal distribution model, supported by statistical analysis, effectively predicts HIC growth rates compared with Weibull and Gamma distribution models.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"241 ","pages":"Article 112556"},"PeriodicalIF":7.4,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663721","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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