Acta Metallurgica Sinica-English Letters最新文献_第2页

Effects of Post-Heat Treatment and Carbide Precipitates on Strength-Ductility Balance of GH3536 Superalloy Prepared by Selective Laser Melting 后热处理和碳化物沉淀对选择性激光熔化制备的 GH3536 超耐热合金强度-延展性平衡的影响

IF 2.755 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-07-22 DOI: 10.1007/s40195-024-01748-3

Le Xia, Haijun Su, Quandong Hu, Yinuo Guo, Peixin Yang, Hongliang Gao, Minghui Yu, Min Guo, Zhuo Zhang, Lin Liu, Hengzhi Fu

{"title":"Effects of Post-Heat Treatment and Carbide Precipitates on Strength-Ductility Balance of GH3536 Superalloy Prepared by Selective Laser Melting","authors":"Le Xia, Haijun Su, Quandong Hu, Yinuo Guo, Peixin Yang, Hongliang Gao, Minghui Yu, Min Guo, Zhuo Zhang, Lin Liu, Hengzhi Fu","doi":"10.1007/s40195-024-01748-3","DOIUrl":"https://doi.org/10.1007/s40195-024-01748-3","url":null,"abstract":"The strength and ductility cannot achieve a good tradeoff for some superalloy (e.g. GH3536) prepared by selective laser melting (SLM), which seriously restricts their industrial applications. This work examined the effect of post-heat treatment (HT) on the microstructure and mechanical properties of GH3536 produced by SLM. In particular, the influence of carbide precipitate morphology and distribution on strength and ductility of the alloy after heat treatment was discussed. After aging at 650 °C (denoted as HT1), the Cr23C6 carbides were distributed in chains. The ductility increased by approximately 31%, while the strength slightly decreased. After aging at 745 °C (denoted as HT2), the Cr23C6 carbides were distributed in chains. However, the HT2 samples showed an increase in ductility of ~ 58% and no reduction in strength. As the dislocation density of HT2 sample was higher than that of the HT1 sample, the chain carbides could be pinned to the grain boundaries, consequently improving the ductility but no loss in strength as compared with the as-deposited samples. When the aging temperature was increased to 900 °C (denoted as HT3), the carbides were distributed in a discontinuous granular form. As a result, the HT3 samples presented the lowest dislocation density which reduced the strength.","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":null,"pages":null},"PeriodicalIF":2.755,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141740031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Microstructure Characteristics, Texture Evolution and Mechanical Properties of Al–Mg–Si–Mn–xCu Alloys via Extrusion and Heat Treatment 通过挤压和热处理获得的 Al-Mg-Si-Mn-xCu 合金的微观结构特征、纹理演变和力学性能

IF 2.755 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-07-04 DOI: 10.1007/s40195-024-01713-0

Zulai Li, Yingxing Zhang, Junlei Zhang, Xiang Chen, Suokun Chen, Lujian Cui, Shengjie Han

{"title":"Microstructure Characteristics, Texture Evolution and Mechanical Properties of Al–Mg–Si–Mn–xCu Alloys via Extrusion and Heat Treatment","authors":"Zulai Li, Yingxing Zhang, Junlei Zhang, Xiang Chen, Suokun Chen, Lujian Cui, Shengjie Han","doi":"10.1007/s40195-024-01713-0","DOIUrl":"https://doi.org/10.1007/s40195-024-01713-0","url":null,"abstract":"In this work, the impact of extrusion and post-extrusion heat treatment (T6) on the microstructure and mechanical properties of the Al-1.2Mg-0.8Si-0.5Mn alloy with different Cu contents (0, 0.6, 1.3 and 2.0 wt%) was studied. Microstructure characterization showed that all extruded alloys exhibited elongated grain structure with an average grain size of ~ 4.8 μm. The dominant texture components were deformation texture (A*, Copper and P texture), while the proportion of random texture initially increased and then decreased with increasing Cu content. After T6 treatment, the grain size of the four alloys increased significantly, but the growth trend decreased with increasing Cu content, and the textures transformed into recrystallized textures (Cube, A and Goss texture). Tensile testing revealed that the designed T6 alloys with 2.0% Cu content exhibited an excellent strength-ductility balance, i.e., a yield strength of 342.9 MPa, an ultimate tensile strength of 424.8 MPa and an elongation of 15.9%. The enhanced strength was mainly attributed to fine grain strengthening, solid solution strengthening and aging strengthening mechanisms. The superior ductility was due to the pinning effect of fine precipitates and high dislocation accommodation capacity caused by heat treatment.","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":null,"pages":null},"PeriodicalIF":2.755,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141547315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Untypical Electrochemical Corrosion Behavior of High-Nitrogen Austenitic Stainless Steel: Non-Pitting in Transpassivation 高氮奥氏体不锈钢的非典型电化学腐蚀行为：半钝化中的非点蚀

IF 2.755 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-07-04 DOI: 10.1007/s40195-024-01743-8

Qisi Wang, Qingchuan Wang, Xingxing Wang, Fan Liu, Ke Yang

{"title":"Untypical Electrochemical Corrosion Behavior of High-Nitrogen Austenitic Stainless Steel: Non-Pitting in Transpassivation","authors":"Qisi Wang, Qingchuan Wang, Xingxing Wang, Fan Liu, Ke Yang","doi":"10.1007/s40195-024-01743-8","DOIUrl":"https://doi.org/10.1007/s40195-024-01743-8","url":null,"abstract":"The transpassivation and pitting corrosion behavior of a high-nitrogen stainless steel (HNS), Fe18Cr15Mn3Mo0.92N, were systematically investigated by electrochemical analysis, morphology observation, and X-ray photoelectron spectroscopy surface analysis. It was surprisingly found that no pitting corrosion occurred in the transpassivation region of HNS. This electrochemical corrosion behavior is untypical for stainless steels, i.e., the traditional critical pitting potential method was invalid for HNS. Both N and Cr enrichments in the transpassivation film on HNS were found extremely higher than those in the passivation film. The N existed in the form of [CrN] complex, which could stabilize the above both films. Besides, the corrosion product of N was detected as NH3 that exhibited an effective corrosion inhibition effect. On this basis, although the transition of Cr from 3-valent to 6-valent was confirmed, the transpassivation film on HNS still maintained it high stability and no pitting was found to occur. Therefore, the real pitting resistance of HNS should be higher than the expected before. And the stable transpassivation film played an important role in its untypical pitting corrosion resistance.","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":null,"pages":null},"PeriodicalIF":2.755,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141547381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Effect of Temperature and Grain Boundary on Void Evolution in Irradiated Copper: A Phase-Field Study 温度和晶界对辐照铜中空洞演化的影响：相场研究

IF 2.755 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-07-04 DOI: 10.1007/s40195-024-01725-w

Qionghuan Zeng, Yiming Chen, Zhongsheng Yang, Yunhao Huang, Zhijun Wang, Junjie Li, Jincheng Wang

{"title":"Effect of Temperature and Grain Boundary on Void Evolution in Irradiated Copper: A Phase-Field Study","authors":"Qionghuan Zeng, Yiming Chen, Zhongsheng Yang, Yunhao Huang, Zhijun Wang, Junjie Li, Jincheng Wang","doi":"10.1007/s40195-024-01725-w","DOIUrl":"https://doi.org/10.1007/s40195-024-01725-w","url":null,"abstract":"The continued existence of high-energy radiation in nuclear reactors at high temperatures results in the formation of radiation-induced voids, which will further lead to inevitable swellings of polycrystalline structural components and thus premature failures. A deep understanding of the effect of temperature and grain boundary on void evolution in irradiated copper is significant for preventing this kind of failures. Here, the phase-field method was employed to study void evolution in irradiated copper under different temperatures and grain sizes. The results show that, due to the different sensitivities of point defect production rate and vacancy diffusion rate to temperature changes, both the nucleation-growth rate and the coarsening rate during void evolution increase first and then decrease with increasing temperature; moreover, the nucleation mechanism exhibits site-saturated nucleation at low temperatures while continuous nucleation at high temperatures. The presence of grain boundary can accelerate the emergence of void because grain boundaries can absorb more interstitials than vacancies. The finer the grain size, the stronger inhibitory effect of grain boundaries on the growth rate of void, due to the formation of void denuded zone near grain boundaries. At high temperatures, the growth rate of void in fine grains is significantly reduced due to the increase of vacancy diffusion rate and the enhancement of sink effect of grain boundary on vacancy.","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":null,"pages":null},"PeriodicalIF":2.755,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141553227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Experimental and DFT Investigations of AlNbTiVZr High Entropy Alloys with Excellent Mechanical Properties 具有优异机械性能的 AlNbTiVZr 高熵合金的实验和 DFT 研究

IF 2.755 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-06-28 DOI: 10.1007/s40195-024-01716-x

Hongwei Yan, Yong’an Zhang, Wei Xiao, Boyu Xue, Rui Liu, Xiwu Li, Zhihui Li, Baiqing Xiong

{"title":"Experimental and DFT Investigations of AlNbTiVZr High Entropy Alloys with Excellent Mechanical Properties","authors":"Hongwei Yan, Yong’an Zhang, Wei Xiao, Boyu Xue, Rui Liu, Xiwu Li, Zhihui Li, Baiqing Xiong","doi":"10.1007/s40195-024-01716-x","DOIUrl":"https://doi.org/10.1007/s40195-024-01716-x","url":null,"abstract":"This study investigated the microstructure and mechanical properties of AlNbTiVZr series high-entropy alloys (HEAs) through both experimental studies and density functional theory calculations. Significant improvements in the microstructures and mechanical properties were achieved for the AlNbTiVZr series HEAs by meticulously adjusting the alloy composition and employing homogenization heat treatment. Notably, the specimen designated as Al0.5NbTiVZr0.5 demonstrated excellent mechanical properties including a compressive yield strength of 1162 MPa and a compressive strength of 1783 MPa. After homogenization heat treatment at 1000 °C for 24 h, the Al0.5NbTiVZr0.5 alloy exhibits brittle-to-ductile transition. Further atomic-scale theoretical simulations reveal that the decrease of Al content intrinsically enhances the ductility of the alloys, thereby indicating that the mechanical properties of the AlNbTiVZr series HEAs were significantly influenced by the chemical composition. Additionally, specific atomic pair formations were observed to adversely affect the microstructure of the AlNbTiVZr series HEAs, particularly in terms of ductility. These findings provide valuable insights for the design and optimization of light weight HEAs, emphasizing the synergistic adjustment of alloy composition and heat treatment processes to achieve a balance between the strength and ductility.","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":null,"pages":null},"PeriodicalIF":2.755,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141502102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Atomistic Insights into the Irradiation Resistance of Co-Free High Entropy Alloy FeMnNiCr 对无共价高熵合金铁锰镍铬耐辐照性的原子论见解

IF 2.755 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-06-28 DOI: 10.1007/s40195-024-01738-5

Chunhui Wang, Lei Guo, Rui Li, Qing Peng

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High-Temperature Fatigue Behavior of Inertia Friction Welded Joints of GH4065A Ni-Based Superalloy GH4065A 镍基超合金惯性摩擦焊接接头的高温疲劳行为

IF 2.755 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-06-25 DOI: 10.1007/s40195-024-01739-4

Xiaoguang Li, Jiatao Liu, Qing Liu, Chunbo Zhang, Hang Liang, Lei Cui, Yongchang Liu

{"title":"High-Temperature Fatigue Behavior of Inertia Friction Welded Joints of GH4065A Ni-Based Superalloy","authors":"Xiaoguang Li, Jiatao Liu, Qing Liu, Chunbo Zhang, Hang Liang, Lei Cui, Yongchang Liu","doi":"10.1007/s40195-024-01739-4","DOIUrl":"https://doi.org/10.1007/s40195-024-01739-4","url":null,"abstract":"In this work, the novel Ni-based superalloy GH4065A inertia friction welding (IFW) joints were subjected to the post-welding heat treatments (PWHT) at 730 ℃ for 5 h or 760 ℃ for 5 h, and the differences in microstructure characteristics, local mechanical properties, and fatigue failure life were focused. Furthermore, based on the high-temperature low-cycle fatigue testing and characterization results, the correlation between the microstructure characteristics and low-cycle fatigue damage behavior was systematically analyzed. It was found that there were smaller grains in the thermo-mechanically affected zone (TMAZ) than in the weld zone and heat-affected zone (HAZ), and the boundary region between TMAZ and HAZ was the fatigue failure position of IFW joints under the high-temperature low-cycle fatigue loading. The fatigue testing results showed that the high-temperature fatigue performance for GH4065A IFW joints degenerated with the increase in PWHT temperature. There existed cyclic softening and inhomogeneous fatigue damage in an IFW joint, which was more significant under the 760 ℃ 5 h PWHT condition. Microstructurally, dislocation tangles and cells formed in the boundary region between TMAZ and HAZ under the fatigue loading. The difference in grain size after the IFW process and the inhomogeneous γ′ phrase re-precipitation after the PWHT in the boundary region between TMAZ and HAZ resulted in the local inhomogeneous strengthening, corresponding to uneven plastic deformation and fatigue failure behavior under the fatigue loadings.","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":null,"pages":null},"PeriodicalIF":2.755,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141525844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Effects of Co and Nb on the Crack of Additive Manufacturing Nickel-Based Superalloys 钴和铌对增材制造镍基超合金裂纹的影响

IF 2.755 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-06-25 DOI: 10.1007/s40195-024-01726-9

Kejie Tan, Jinli Xie, Hailong Qin, Bin Xu, Guichen Hou, Jinguo Li, Zhongnan Bi, Ji Zhang

{"title":"Effects of Co and Nb on the Crack of Additive Manufacturing Nickel-Based Superalloys","authors":"Kejie Tan, Jinli Xie, Hailong Qin, Bin Xu, Guichen Hou, Jinguo Li, Zhongnan Bi, Ji Zhang","doi":"10.1007/s40195-024-01726-9","DOIUrl":"https://doi.org/10.1007/s40195-024-01726-9","url":null,"abstract":"Increasing the print quality is the critical requirement for the additive manufactured complex part of aero-engines of nickel-based superalloys. A study of the effects of Co and Nb on the crack is performed focusing on the selective laser melting (SLM) nickel-based superalloy. In this paper, the solvus temperature of γ', crack characteristics, microstructure, thermal expansion, and mechanical properties of SLM nickel-based superalloy are investigated by varying the content of Co and Nb. The alloy with 15Co/0Nb shows the highest comprehensive quality. Nb increases the crack risk and thermal deformation, and then Co accelerates the stress release. Therefore, Co is an extremely important alloying element for improving the quality of SLM nickel-based superalloy. Finally, the crack growth kinetics and the strain difference are discussed to reveal the SLM crack regular that is affected by time or temperature. The analysis work on the effect of alloying elements can obtain an effective foundational theory to guide the composition optimization of SLM nickel-based superalloys.","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":null,"pages":null},"PeriodicalIF":2.755,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141525842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Thermal Stability and Strengthening Effect of Coherent Precipitates in a (FeCoNi)92Al2.5Ti5.5 High Entropy Alloy (FeCoNi)92Al2.5Ti5.5高熵合金中相干沉淀的热稳定性和强化效应

IF 2.755 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-06-25 DOI: 10.1007/s40195-024-01727-8

Yuqi Liu, Feng Wang, Songyang Chen, Hui Wang, Zhiping Xiong, Khurram Yaqoob, Zhangwei Wang, Min Song

{"title":"Thermal Stability and Strengthening Effect of Coherent Precipitates in a (FeCoNi)92Al2.5Ti5.5 High Entropy Alloy","authors":"Yuqi Liu, Feng Wang, Songyang Chen, Hui Wang, Zhiping Xiong, Khurram Yaqoob, Zhangwei Wang, Min Song","doi":"10.1007/s40195-024-01727-8","DOIUrl":"https://doi.org/10.1007/s40195-024-01727-8","url":null,"abstract":"The coarsening behavior and strengthening effect of L12-Ni3(Ti,Al) precipitates in a face-centered-cubic (FCC) (FeCoNi)92Al2.5Ti5.5 high entropy alloy have been systematically investigated. The coherent L12 precipitates, uniformly distributed throughout the FCC matrix, consistently retain a spherical shape. The coarsening rate coefficient of precipitate is determined by employing the Philippe-Voorhees (PV) model, suggesting excellent thermal stability. Furthermore, the elemental partitioning and compositional evolution of the L12 precipitates is analyzed by atom probe tomography, which identify aluminum (Al) as the slowest diffusion species during the coarsening process. In addition, the precipitation strengthening effect is quantified to ascertain the optimal size of the precipitates. Our study enhances the understanding of precipitate coarsening in high entropy alloys, presenting valuable insights into their thermal stability and mechanical properties.","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":null,"pages":null},"PeriodicalIF":2.755,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141526050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Fatigue and Corrosion Fatigue Properties of Mg–Zn–Zr–Nd Alloys in Glucose-Containing Simulated Body Fluids 含葡萄糖模拟体液中 Mg-Zn-Zr-Nd 合金的疲劳和腐蚀疲劳特性

IF 2.755 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-06-25 DOI: 10.1007/s40195-024-01730-z

Xue Han, Dan Zhang, Song Zhang, Mohammed R. I. Abueida, Lili Tan, Xiaopeng Lu, Qiang Wang, Huanye Liu

{"title":"Fatigue and Corrosion Fatigue Properties of Mg–Zn–Zr–Nd Alloys in Glucose-Containing Simulated Body Fluids","authors":"Xue Han, Dan Zhang, Song Zhang, Mohammed R. I. Abueida, Lili Tan, Xiaopeng Lu, Qiang Wang, Huanye Liu","doi":"10.1007/s40195-024-01730-z","DOIUrl":"https://doi.org/10.1007/s40195-024-01730-z","url":null,"abstract":"Medical bone implant magnesium (Mg) alloys are subjected to both corrosive environments and complex loads in the human body. The increasing number of hyperglycemic and diabetic patients in recent years has brought new challenges to the fatigue performance of Mg alloys. Therefore, it is significant to study the corrosion fatigue (CF) behavior of medical Mg alloys in glucose-containing simulated body fluids for their clinical applications. Herein, the corrosion and fatigue properties of extruded Mg-Zn-Zr-Nd alloy in Hank’s balanced salt solution (HBSS) containing different concentrations (1 g/L and 3 g/L) of glucose were investigated. The average grain size of the alloy is about 5 μm, which provides excellent overall mechanical properties. The conditional fatigue strength of the alloy was 127 MPa in air and 88 MPa and 70 MPa in HBSS containing 1 g/L glucose and 3 g/L glucose, respectively. Fatigue crack initiation points for alloys in air are oxide inclusions and in solution are corrosion pits. The corrosion rate of the alloy is high at the beginning, and decreases as the surface corrosion product layer thickens with the increase of immersion time. The corrosion products of the alloy are mainly Mg(OH)2, MgO and a small amount of Ca-P compounds. The electrochemical results indicated that the corrosion rate of the alloys gradually decreased with increasing immersion time, but the corrosion tendency of the alloy was greater in HBSS containing 3 g/L glucose. On the one hand, glucose accelerates the corrosion process by adsorbing large amounts of aggressive Cl− ions. On the other hand, glucose will be oxidized to form gluconic acid, and then reacts with Mg(OH)2 and MgO to form Mg gluconate, which destroys the corrosion product film and leads to the aggravation of corrosion and the accumulation of fatigue damage.","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":null,"pages":null},"PeriodicalIF":2.755,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141502104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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