Corrosion Science最新文献_第2页

Temperature-dependent oxidation behavior of Y-Hf co-doped and Co-free Al16Cr20Fe20Ni44 eutectic multi-principal elements alloy at 1100–1300 °C Y-Hf共掺和不含co的Al16Cr20Fe20Ni44共晶多主元素合金1100 ~ 1300 ℃的温度依赖氧化行为

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-06-16 DOI: 10.1016/j.corsci.2025.113116

Aihui Huang , Yusheng Tian , Yifeng Tang , Guoliang Zhu , Shilin Xia , Xiaofeng Zhao , Paul K. Chu , Chao Yang , Xiaoqin Zeng

{"title":"Temperature-dependent oxidation behavior of Y-Hf co-doped and Co-free Al16Cr20Fe20Ni44 eutectic multi-principal elements alloy at 1100–1300 °C","authors":"Aihui Huang , Yusheng Tian , Yifeng Tang , Guoliang Zhu , Shilin Xia , Xiaofeng Zhao , Paul K. Chu , Chao Yang , Xiaoqin Zeng","doi":"10.1016/j.corsci.2025.113116","DOIUrl":"10.1016/j.corsci.2025.113116","url":null,"abstract":"<div><div>Eutectic multi-principal elements alloys (EMPEAs) are promising candidates for high-temperature applications due to their exceptional mechanical properties and thermal stability. Herein, the temperature-dependent oxidation behavior of a Y-Hf co-doped Co-free Al<sub>16</sub>Cr<sub>20</sub>Fe<sub>20</sub>Ni<sub>44</sub> EMPEA in the temperature range between 1100 and 1300 °C is investigated. The oxidation product is exclusively Al<sub>2</sub>O<sub>3</sub> scale with the columnar grain microstructure in this temperature range, indicating that inward O diffusion plays a more critical role than Al diffusion, consequently leading to a small oxidation rate. At 1100–1200 °C, the EMPEA exhibits superior oxidation resistance due to the higher Al activity and lower reactive element (RE) in the Al-depleted layer, while the smaller coefficient of thermal expansion (CTE) minimizes residual stress. However, the EMPEA shows inferior oxidation resistance at 1300 °C, likely because the inherent softness degrades the interfacial instability under elevated thermal stress, leading to oxide scale spallation. All in all, the Y-Hf co-doped Co-free Al<sub>16</sub>Cr<sub>20</sub>Fe<sub>20</sub>Ni<sub>44</sub> EMPEA has large potential in high-temperature applications and offers a cost-effective alternative with sustained performance stability up to 1200 °C.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"255 ","pages":"Article 113116"},"PeriodicalIF":7.4,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144306344","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

Influence of steam flow rate on oxidation kinetics of silicon carbide at 1400–1600 °C 1400 ~ 1600 ℃蒸汽流量对碳化硅氧化动力学的影响

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-06-14 DOI: 10.1016/j.corsci.2025.113098

Hai Pham , Masaki Kurata , Yuji Nagae , Ryo Ishibashi , Masana Sasaki

{"title":"Influence of steam flow rate on oxidation kinetics of silicon carbide at 1400–1600 °C","authors":"Hai Pham , Masaki Kurata , Yuji Nagae , Ryo Ishibashi , Masana Sasaki","doi":"10.1016/j.corsci.2025.113098","DOIUrl":"10.1016/j.corsci.2025.113098","url":null,"abstract":"<div><div>Being potential future materials for accident-tolerant fuel cladding, the oxidation behavior and kinetics of silicon carbide (SiC) under extreme conditions like severe accidents must be elucidated. In this study, oxidation tests of SiC at 1400–1600 °C for 1–5 h using a newly developed test facility using laser as a heat source, under two different flow rates of H<sub>2</sub>O/Ar gas mixture have been conducted. The objective is to investigate the influence of steam flow rate on the formation of SiO<sub>2</sub> scale and its subsequent volatilization. Oxidation kinetics of SiC was evaluated via mass change of samples before and after the oxidation tests. Based on these mass changes, parabolic oxidation rates for SiO<sub>2</sub> formation and its subsequent linear volatilization rates were calculated. The Arrhenius dependence of the parabolic oxidation and linear volatilization rate constants were then plotted. Results of this study indicated that SiC exhibits excellent oxidation resistance at 1400–1600 °C in Ar/steam atmospheres. Steam flow rate has a significant influence on volatilization of SiO<sub>2</sub> but has minor effects over its formation. Oxidation of SiC in steam at high temperature may follow mass gain or mass loss regime, depending on the steam flow rate. Two oxidation patterns were suggested and discussed. In the first oxidation pattern, the SiO<sub>2</sub> formation is dominated by its volatilization. The second oxidation pattern (steady stage) is reached when the SiO<sub>2</sub> formation rate is equivalent to its volatilization rate. Time to reach this steady stage was defined, based on the parabolic oxidation rate and linear volatilization rate.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"255 ","pages":"Article 113098"},"PeriodicalIF":7.4,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144279263","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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Microstructural influence on high-temperature oxidation of near-α titanium alloys: Timetal 834 and 6242S Timetal 834和6242S对近α钛合金高温氧化的组织影响

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-06-14 DOI: 10.1016/j.corsci.2025.113081

D. Kuczyńska-Zemła , M.C. Marco de Lucas , L. Lavisse , M.R. Zemła , F. Herbst , V. Pacorel , P. Kwaśniak

{"title":"Microstructural influence on high-temperature oxidation of near-α titanium alloys: Timetal 834 and 6242S","authors":"D. Kuczyńska-Zemła , M.C. Marco de Lucas , L. Lavisse , M.R. Zemła , F. Herbst , V. Pacorel , P. Kwaśniak","doi":"10.1016/j.corsci.2025.113081","DOIUrl":"10.1016/j.corsci.2025.113081","url":null,"abstract":"<div><div>In this study, the oxidation behavior of two titanium alloys designed for high-temperature applications, Timetal 834 and Timetal 6242S, was compared. Both are classified as near-<span><math><mi>α</mi></math></span> alloys and possess alloying elements significantly enhancing their resistance to high-temperature oxidation. Applied oxidation routine included 100 and 500hours of prolonged thermal processing in ambient dry air at 600, 650, and 700°C. Such treated materials were investigated using complementary techniques: optical microscopy, scanning electron microscopy, electron/wave dispersive spectrometry, X-ray diffraction, and Raman spectroscopy. The results revealed that different oxide layer growth, between the two analyzed alloys, during high-temperature exposure was strongly related to their microstructures, and especially the arrangement of <span><math><mi>α</mi></math></span> and <span><math><mi>β</mi></math></span> phases. For longer exposure time (500h), the Ti834 alloy showed better oxidation resistance, despite the formation of micrometric nodules on its surface during oxidation, which were not observed in the Ti6242S alloy. The presented data clearly indicate the important role of the microstructure as a source of solute elements that control the structure and stoichiometry of the oxide layer and, consequently, the oxidation resistance.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"255 ","pages":"Article 113081"},"PeriodicalIF":7.4,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144331118","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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A hot-dip self-passive zinc alloy coating to inhibit the galvanic corrosion of a Mg alloy 一种抑制镁合金电偶腐蚀的热浸自钝化锌合金涂层

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-06-13 DOI: 10.1016/j.corsci.2025.113111

Mingyu Yang , Guang-Ling Song

{"title":"A hot-dip self-passive zinc alloy coating to inhibit the galvanic corrosion of a Mg alloy","authors":"Mingyu Yang , Guang-Ling Song","doi":"10.1016/j.corsci.2025.113111","DOIUrl":"10.1016/j.corsci.2025.113111","url":null,"abstract":"<div><div>Galvanic corrosion is one of the most critical issues currently hindering the industrial applications of magnesium (Mg) alloys. In this study, to solve this problem effectively, durably, and economically, a 30-second 360°C rapid hot-dipping technique was developed to convert the surface of Mg alloy WE43 into a metallurgically bonded over 1 mm thick uniform Zn-alloy coating. The alloyed surface layer was characterized and evaluated using microscopic and electrochemical techniques. The results demonstrated that this surface coating had a multilayered microstructure and could self-passivate in 3.5 wt% NaCl. The self-corrosion current density of the Zn-alloyed surface was in the order of 10⁻⁶ A/cm², and the galvanic current density stably remained below 20 × 10⁻⁶ A/cm² when the surface-alloyed Mg alloy was coupled with pure Al or galvanized Q235 steel in the 3.5 wt% NaCl. The Zn-alloyed surface of the Mg alloy could even self-heal in case its surface was scratched. Based on the microstructural and electrochemical characteristics, the surface alloying mechanism on the WE43 is analyzed, and the underlying reasons for the outstanding galvanic corrosion resistance of the Zn-alloyed surface are elucidated.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"255 ","pages":"Article 113111"},"PeriodicalIF":7.4,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144279261","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

Effect of further precipitate refinement on mechanical properties and corrosion behavior of additively manufactured nickel aluminum bronze 析出相进一步细化对增材制造镍铝青铜力学性能和腐蚀行为的影响

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-06-13 DOI: 10.1016/j.corsci.2025.113114

Zhiyuan Jia , Rui Li , Mingzhi Chen , Zhandong Wang , Guifang Sun , En-Hou Han

{"title":"Effect of further precipitate refinement on mechanical properties and corrosion behavior of additively manufactured nickel aluminum bronze","authors":"Zhiyuan Jia , Rui Li , Mingzhi Chen , Zhandong Wang , Guifang Sun , En-Hou Han","doi":"10.1016/j.corsci.2025.113114","DOIUrl":"10.1016/j.corsci.2025.113114","url":null,"abstract":"<div><div>The underwater direct metal deposition (UDMD) technique was employed to investigate the effects of further precipitate refinement on the mechanical and corrosion properties of additively manufactured nickel aluminum bronze (NAB) alloys, with conventional onshore direct metal deposition (DMD) used for comparison. The results demonstrated that both additively manufactured NAB samples exhibited suppressed precipitation of κ<sub>Ⅰ</sub> and κ<sub>Ⅳ</sub> phases. However, the κ<sub>Ⅲ</sub> precipitates in UDMD-processed samples were finer and more uniformly distributed in the interdendritic regions, thereby enhancing the tensile strength compared with DMD-processed samples. NAB alloys prepared by the UDMD process exhibited better corrosion resistance, with the corrosion current reduced by nearly half compared with the DMD process. This enhanced corrosion resistance is attributed to the formation of a denser and more uniform corrosion product film after 30 days of immersion. Moreover, the enhancement in cavitation erosion resistance was limited due to an increase in phase boundaries after precipitate refinement. These findings provide insights into the mechanical and corrosion performance of NAB alloys following continuous refinement in additive manufacturing.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"255 ","pages":"Article 113114"},"PeriodicalIF":7.4,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144290804","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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Effects of SO2 impurity on corrosion behaviors of novel 3Cr2Al alloy steel in supercritical CO2 brine environment SO2杂质对新型3Cr2Al合金钢在超临界CO2盐水环境中腐蚀行为的影响

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-06-11 DOI: 10.1016/j.corsci.2025.113109

Rongdie Zhu , Jinyang Zhu , Yunan Zhang , Zhile Yang

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Insight into the passivity of selective laser-melted biomedical CoCrMo alloys via post-heat treatment 选择性激光熔化生物医用CoCrMo合金的后热处理钝化性能研究

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-06-11 DOI: 10.1016/j.corsci.2025.113113

Yang Liu , Wei Wu , Yuqin Feng , Decheng Kong , Reynier I. Revilla , Junxi Zhang

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Novel insights into the water vapor accelerated degradation mechanism of zirconium-based TBCs for hydrogen gas turbines 氢燃气轮机用锆基tbc的水蒸气加速降解机制的新见解

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-06-10 DOI: 10.1016/j.corsci.2025.113110

Hongxu Zhao , Dingjun Li , Bowen Lv , Lijun Zhang , Jie Mao , Chunming Deng , Changguang Deng , Min Liu

{"title":"Novel insights into the water vapor accelerated degradation mechanism of zirconium-based TBCs for hydrogen gas turbines","authors":"Hongxu Zhao , Dingjun Li , Bowen Lv , Lijun Zhang , Jie Mao , Chunming Deng , Changguang Deng , Min Liu","doi":"10.1016/j.corsci.2025.113110","DOIUrl":"10.1016/j.corsci.2025.113110","url":null,"abstract":"<div><div>Thermal barrier coatings (TBCs) applied in hydrogen gas turbines encounter a critical challenge of water vapor corrosion at higher operating temperatures. However, the degradation mechanism of ceramic top coats exposed directly to high-temperature water vapor environments is still unclear. In this study, the degradation of YSZ coatings with feather-like structures was found to have depth and temperature dependence and could be accelerated by water vapor. The non-uniform phase transformation in the through-thickness direction driven by oxygen vacancy gradient was characterized utilizing the difference in detection depths between neutron and X-ray diffraction. Meanwhile, accelerated sintering was observed throughout the whole depth due to the diffusion and reaction of hydroxyl groups dissociated from water vapor, which was elucidated by computational analysis. Furthermore, direct proofs of transition in diffusion mechanisms were obtained, which were responsible for the severe degradation of YSZ coatings at elevated temperatures. In comparison, the excellent phase/chemical stability and enhanced sintering resistance of the (Gd<sub>0.9</sub>Yb<sub>0.1</sub>)<sub>2</sub>Zr<sub>2</sub>O<sub>7</sub> (GYbZ) and the novel high-entropy (Gd<sub>0.2</sub>Dy<sub>0.2</sub>Ho<sub>0.2</sub>Tm<sub>0.2</sub>Yb<sub>0.2</sub>)<sub>2</sub>Zr<sub>2</sub>O<sub>7</sub> (GDHTY) coatings were evaluated, which demonstrated the potential as alternatives to YSZ applied in hydrogen gas turbines.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"255 ","pages":"Article 113110"},"PeriodicalIF":7.4,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144253711","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

MoSi2 induced core-β/shell-Laves structure to achieve enhanced oxidation resistance of CoNiCrAlY alloys fabricated by oscillating laser-directed energy deposition MoSi2诱导核心-β/壳- laves结构，提高了振荡激光定向能沉积CoNiCrAlY合金的抗氧化性能

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-06-10 DOI: 10.1016/j.corsci.2025.113108

Yunzhen Xu , Pan Ren , Lei Qin , Cheng Deng , Delong Zeng , Shengfeng Zhou

{"title":"MoSi2 induced core-β/shell-Laves structure to achieve enhanced oxidation resistance of CoNiCrAlY alloys fabricated by oscillating laser-directed energy deposition","authors":"Yunzhen Xu , Pan Ren , Lei Qin , Cheng Deng , Delong Zeng , Shengfeng Zhou","doi":"10.1016/j.corsci.2025.113108","DOIUrl":"10.1016/j.corsci.2025.113108","url":null,"abstract":"<div><div>To improve the oxidation resistance of CoNiCrAlY alloys, varying contents of MoSi<sub>2</sub> were introduced into the alloys fabricated via oscillating laser-directed energy deposition (OL-DED). The microstructural evolution and isothermal oxidation behavior of the CoNiCrAlY-<em>x</em>MoSi<sub>2</sub> alloys (<em>x</em> = 0, 5, 7, 10, and 12 wt.%) were systematically investigated. Results show that greater MoSi<sub>2</sub> additions facilitate β phase formation and lower the Al threshold required to develop a continuous Al<sub>2</sub>O<sub>3</sub> scale. This leads to a transition in the oxide scale from a double-layer structure (Co(Ni)Cr<sub>2</sub>O<sub>4</sub> + Al<sub>2</sub>O<sub>3</sub>) to a single-layer Al<sub>2</sub>O<sub>3</sub>. Notably, when the MoSi<sub>2</sub> content exceeds 5 wt.%, Laves phase precipitates form around the β phase, creating a unique core-β/shell-Laves structure. This structure effectively suppresses grain boundary diffusion of Al atoms, promoting lattice diffusion and facilitating the formation of a uniform and dense Al<sub>2</sub>O<sub>3</sub> scale. The optimal MoSi<sub>2</sub> addition of 10 wt.% results in a weight gain of only 0.36 mg/cm² after oxidation at 1000 °C for 500 h, representing a 62.1 % reduction compared to the undoped CoNiCrAlY alloy. These findings demonstrate that the OL-DED-fabricated CoNiCrAlY-10MoSi<sub>2</sub> alloy exhibits superior oxidation resistance, outperforming other MCrAlY alloys at 1000 °C.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"255 ","pages":"Article 113108"},"PeriodicalIF":7.4,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144271315","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

Synergistic roles of Cr and Mo in low temperature steam oxidation of FeCrAl alloys Cr和Mo在FeCrAl合金低温蒸汽氧化中的协同作用

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-06-10 DOI: 10.1016/j.corsci.2025.113107

Soumita Mondal , Arya Chatterjee , Ronit Roy , Md Ali Muntaha , Janelle P. Wharry , Haozheng J. Qu , Rajnikant Umretiya

{"title":"Synergistic roles of Cr and Mo in low temperature steam oxidation of FeCrAl alloys","authors":"Soumita Mondal , Arya Chatterjee , Ronit Roy , Md Ali Muntaha , Janelle P. Wharry , Haozheng J. Qu , Rajnikant Umretiya","doi":"10.1016/j.corsci.2025.113107","DOIUrl":"10.1016/j.corsci.2025.113107","url":null,"abstract":"<div><div>The objective of this study is to understand the synergistic role of Cr and Mo on low temperature steam oxidation behaviour of two commercial FeCrAl alloys. FeCrAl alloys are leading candidates for accident-tolerant nuclear fuel claddings owing to their resistance to high temperature steam oxidation in accident scenarios. But low temperature steam oxidation of FeCrAl alloys, representative of top-of-core normal operation of boiling water reactors, must also be understood before these claddings can be safely deployed in reactors. This study evaluates FA-SMT (Fe-21Cr-5Al-3Mo) and PM-C26M (Fe-12Cr-6Al-2Mo) in 400 ºC steam for up to 1000 hr. The higher bulk Cr content in FA-SMT accelerates all reaction kinetics, leading to rapid growth of an outer Cr<sub>2</sub>O<sub>3</sub> layer, which then enables formation of a passivating inner Al<sub>2</sub>O<sub>3</sub> layer that hinders further oxidation. Meanwhile, Mo replaces Cr along grain boundaries, preventing additional Cr and Fe outward diffusion, and further hindering oxidation. By contrast, PM-C26M is more susceptible to steam oxidation as Mo remains in solid solution, allowing uncontrolled Fe oxidation. The beneficial effects of Mo in the presence of high Cr content may be considered a “fourth element effect” that can guide future design of high-strength, oxidation-resistant FeCrAl alloys.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"255 ","pages":"Article 113107"},"PeriodicalIF":7.4,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144288916","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