Rare Metals最新文献_第2页

Plastic deformation mechanism of Mg-Gd-Y-(Sm)-Zr alloys at room and cryogenic temperature 室温和低温下 Mg-Gd-Y-(Sm)-Zr 合金的塑性变形机理

IF 8.8 1区材料科学

Rare Metals Pub Date : 2024-09-11 DOI: 10.1007/s12598-024-02987-0

Yan-Bo Pei, En-Bo Wei, Meng-Jia Yao, Meng-Hua Yu, Mao-Sheng Zhao, Bu-Gang Teng

{"title":"Plastic deformation mechanism of Mg-Gd-Y-(Sm)-Zr alloys at room and cryogenic temperature","authors":"Yan-Bo Pei, En-Bo Wei, Meng-Jia Yao, Meng-Hua Yu, Mao-Sheng Zhao, Bu-Gang Teng","doi":"10.1007/s12598-024-02987-0","DOIUrl":"https://doi.org/10.1007/s12598-024-02987-0","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>In this study, Mg-Gd-Y-(Sm)-Zr (GW-(Sm)) alloys were subjected to compression tests at both 293 and 77 K. The effect of Sm addition on the plastic deformation mechanism of Mg-Gd-Y-Zr (GW) alloy was investigated, and a detailed analysis was conducted on the relationships between mechanical responses and the microstructure of the alloys. The findings suggest that dislocation slip plays a predominant role in the plastic deformation of GW-(Sm) alloys. The addition of Sm reduces the stacking fault energy (SFE) of the alloy, which promotes < c + a > slip and inhibits twinning. Meanwhile, Sm plays a role in solution strengthening, causing an elevation in the flow stress of the alloy. At cryogenic temperature (CT), the critical resolved shear stress (CRSS) of dislocation slip is increased, so the dislocation motion requires greater external force. In addition, the extensive crossed twins exhibited in the microstructure, which shorten the dislocation slip path and enhance the grain boundary strengthening. This research contributes to the advancement of plastic deformation theories for magnesium-rare earth (Mg-RE) alloys.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"52 1","pages":""},"PeriodicalIF":8.8,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209097","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

Development of a high property acetone sensor based on TiO2 core-shell spheres and their sensing mechanism analysis 基于 TiO2 核壳球的高特性丙酮传感器的开发及其传感机理分析

IF 8.8 1区材料科学

Rare Metals Pub Date : 2024-09-11 DOI: 10.1007/s12598-024-02991-4

Bao-Quan Yang, Xiao-Li Cheng, Xin Zhao, Xian-Fa Zhang, Chuan-Yu Guo, Li-Hua Huo, Ting-Ting Wang, Chao-Bo Huang, Zoltán Major, Ying-Ming Xu

{"title":"Development of a high property acetone sensor based on TiO2 core-shell spheres and their sensing mechanism analysis","authors":"Bao-Quan Yang, Xiao-Li Cheng, Xin Zhao, Xian-Fa Zhang, Chuan-Yu Guo, Li-Hua Huo, Ting-Ting Wang, Chao-Bo Huang, Zoltán Major, Ying-Ming Xu","doi":"10.1007/s12598-024-02991-4","DOIUrl":"https://doi.org/10.1007/s12598-024-02991-4","url":null,"abstract":"Acetone is a common volatile organic compound that can cause harm to human health when inhaled in small amounts. Therefore, the development of fast response and low detection limit acetone sensors becomes crucial. In this study, a core-shell spherical TiO2 sensor with a rich pore structure was designed. This sensor exhibited excellent sensing properties, including higher responsiveness (100 ppm acetone, Ra/Rg = 80), lower detection limit (10 ppb) and short response time (8 s). The problem is that the sensing mechanism between TiO2 and acetone is not thoroughly analyzed. To gain further insight, the interaction process of TiO2 core-shell spheres and acetone under varying oxygen content environments was investigated by dynamic testing, X-ray photoelectron spectroscopy, in-situ Fourier transform infrared spectroscopy and gas chromatography-mass spectrometry. The research results show that acetone not only adsorbs on the surface of the material and reacts with adsorbed oxygen, but also undergoes catalytic oxidation reaction with TiO2 core-shell spheres. Significantly, in high oxygen content environments, acetone undergoes oxidation to form intermediates such as acids and anhydrides that are difficult to desorpt on the surface of the material, thus prolonging the recovery time of the sensor. The discovery of this sensing process will provide some guidance for the design of acetone sensing materials in the future. Meanwhile, this also imparts valuable references and insights for the investigation of the mechanism and application of other sensitive metal oxide materials.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"8 1","pages":""},"PeriodicalIF":8.8,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209098","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

Concentrated perchlorate-based electrolyte facilitates Zn anode-compatible in situ solid electrolyte interphase 以高氯酸盐为基础的浓缩电解质促进了与锌阳极相容的原位固体电解质相变

IF 8.8 1区材料科学

Rare Metals Pub Date : 2024-09-11 DOI: 10.1007/s12598-024-02972-7

Yin-Sheng Li, Li-Shan Geng, Bo-Mian Zhang, Zi-He Wei, Hao Fan, Jing-Hao Li, Wen-Cong Feng, Liang Zhou

{"title":"Concentrated perchlorate-based electrolyte facilitates Zn anode-compatible in situ solid electrolyte interphase","authors":"Yin-Sheng Li, Li-Shan Geng, Bo-Mian Zhang, Zi-He Wei, Hao Fan, Jing-Hao Li, Wen-Cong Feng, Liang Zhou","doi":"10.1007/s12598-024-02972-7","DOIUrl":"https://doi.org/10.1007/s12598-024-02972-7","url":null,"abstract":"Zinc perchlorate (Zn(ClO4)2) electrolytes have demonstrated favorable low-temperature performance in aqueous zinc-ion batteries (AZIBs). However, the Zn anode encounters serious dendrite formation and parasitic reactions in zinc perchlorate electrolytes, which is caused by the fast corrosive kinetics at room temperature. Herein, a concentrated perchlorate-based electrolyte consisting of 4.0 M Zn(ClO4)2 and saturated NaClO4 solution is developed to achieve dendrite-free and stable AZIBs at room temperature. The ClO4− participates in the primary solvation sheath of Zn2+, facilitating the in situ formation of Zn5(OH)8Cl2·H2O-rich solid electrolyte interphase (SEI) to suppress the corrosion effect of ClO4−. The Zn anode protected by the SEI achieves stable Zn plating/stripping over 3000 h. Furthermore, the MnO2||Zn full cells manifest a stable specific capacity of 200 mAh·g−1 at 28 °C and 101 mAh·g−1 at − 20 °C. This work introduces a promising approach for boosting the room-temperature performance of perchlorate-based electrolytes for AZIBs.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"62 1","pages":""},"PeriodicalIF":8.8,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209099","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

Impact of annealing on structural and corrosion resistance properties of Ti20Zr20Hf20Be20Ni20 high-entropy metallic glass 退火对 Ti20Zr20Hf20Be20Ni20 高熵金属玻璃的结构和耐腐蚀性能的影响

IF 8.8 1区材料科学

Rare Metals Pub Date : 2024-09-10 DOI: 10.1007/s12598-024-02952-x

Ke-Ran Li, Pan Gong, Dong-Liang Wang, Cheng Zhang, Hu Huang, Muhammad Yasir, Mao Zhang, Xin-Yun Wang

{"title":"Impact of annealing on structural and corrosion resistance properties of Ti20Zr20Hf20Be20Ni20 high-entropy metallic glass","authors":"Ke-Ran Li, Pan Gong, Dong-Liang Wang, Cheng Zhang, Hu Huang, Muhammad Yasir, Mao Zhang, Xin-Yun Wang","doi":"10.1007/s12598-024-02952-x","DOIUrl":"https://doi.org/10.1007/s12598-024-02952-x","url":null,"abstract":"This study comprehensively investigates the effects of annealing on the structural, electrochemical properties and passivation film characteristics of Ti20Zr20Hf20Be20Ni20 (at%) high-entropy metallic glass (HE-MG). Subjected to various annealing temperatures, the samples were analyzed in a 3.5 wt% NaCl solution to evaluate changes in their microstructure and assess their corrosion resistance. Findings reveal that the HE-MG undergoes multistage crystallization, displaying an amorphous matrix integrated with face centered cubic (FCC) and Ni7Zr2 phases between 420 and 500 °C, indicating robust thermal stability. Electrochemical assessments identify a critical temperature threshold: Below the glass transition temperature (Tg), the HE-MG maintains excellent corrosion resistance, promoting stable passivation layers. Above Tg, enhanced long-range atomic rearrangement during relaxation increases passivation layer defects and significantly diminishes corrosion resistance. X-ray photoelectron spectroscopy (XPS) analyses show that the primary components of the passivation layer are TiO2, ZrO2, HfO2 and BeO. Increased annealing temperatures lead to enhanced Be and Ni content and decreased Ti, Zr and Hf. Additionally, high mixing entropy and significant atomic size mismatch suppress long-range atomic rearrangement and crystallization. The crystallization begins above Tg by 20 °C, with crystalline phases evenly distributed within the matrix without drastically affecting corrosion resistance. This investigation highlights the impact of thermal treatment on the properties of HE-MG, contributing valuable insights into optimizing their performance and applications.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"28 1","pages":""},"PeriodicalIF":8.8,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209100","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

Efficient hydrogen transfer carriers: hydrogenation mechanism of dibenzyltoluene catalyzed by Mg-based metal hydride 高效氢转移载体：镁基金属氢化物催化二苄基甲苯的氢化机理

IF 8.8 1区材料科学

Rare Metals Pub Date : 2024-09-09 DOI: 10.1007/s12598-024-02941-0

Hai-Yu Deng, Li-Jun Jiang, Shao-Hua Wang, Wen-Quan Jiang, Yuan-Fang Wu, Xiu-Mei Guo, Shu-Mao Wang, Lei Hao

引用次数: 0

Inorganic ammonium salt doping in nickel oxide for highly efficient planar perovskite solar cells 在氧化镍中掺入无机铵盐以制造高效平面过氧化物太阳能电池

IF 8.8 1区材料科学

Rare Metals Pub Date : 2024-09-09 DOI: 10.1007/s12598-024-02984-3

Rui-Chen Song, Jian-Ming Yang, Li-Fang Wu, Hong-Yu Li, Zhi-Xin Yang, Zhe-Hao Wang, Zhi-Fang Wu, Alexey B. Tarasov, Sardor Donaev, Chang Xue, Sheng-Hao Wang

{"title":"Inorganic ammonium salt doping in nickel oxide for highly efficient planar perovskite solar cells","authors":"Rui-Chen Song, Jian-Ming Yang, Li-Fang Wu, Hong-Yu Li, Zhi-Xin Yang, Zhe-Hao Wang, Zhi-Fang Wu, Alexey B. Tarasov, Sardor Donaev, Chang Xue, Sheng-Hao Wang","doi":"10.1007/s12598-024-02984-3","DOIUrl":"https://doi.org/10.1007/s12598-024-02984-3","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>Inverted perovskite solar cells (PSCs) have stood out in recent years for their great potential in offering low-temperature compatibility, long-term stability and tandem cell suitability. However, challenges persist, particularly concerning the use of nickel oxide nanoparticles (NiOx NPs) as the hole transport material, where issues such as low conductivity, impurity-induced aggregation and interface redox reactions significantly hinder device performance. In response, this study presents a novel synthesis method for NiOx NPs, leveraging the introduction of ammonium salt dopants (NH4Cl and NH4SCN), and the solar cell utilizing the doped NiOx substrate exhibits much enhanced device performance. Furthermore, doped solar cells reach 23.27% power conversion efficiency (PCE) when a self-assembled monolayer (SAM) is further employed. This study provides critical insights into the synthesis and growth pathways of NiOx NPs, propelling the development of efficient hole transport materials for high-performance PSCs.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"19 1","pages":""},"PeriodicalIF":8.8,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209102","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 release of copper and lithium components in biodegradable zinc alloy for osteoimmunomodulation 用于骨免疫调节的生物可降解锌合金中铜和锂成分的协同释放

IF 8.8 1区材料科学

Rare Metals Pub Date : 2024-09-09 DOI: 10.1007/s12598-024-02930-3

Yu-Jue Zhang, Zhao-Yong Lv, Xin Luo, Hui-Fen Qiang, Jia-Qi He, Cai-Yao Hou, Ya-Geng Li, Feng-Zhen Liu, Lu-Ning Wang

{"title":"Synergistic release of copper and lithium components in biodegradable zinc alloy for osteoimmunomodulation","authors":"Yu-Jue Zhang, Zhao-Yong Lv, Xin Luo, Hui-Fen Qiang, Jia-Qi He, Cai-Yao Hou, Ya-Geng Li, Feng-Zhen Liu, Lu-Ning Wang","doi":"10.1007/s12598-024-02930-3","DOIUrl":"https://doi.org/10.1007/s12598-024-02930-3","url":null,"abstract":"Zinc (Zn)-based alloys have emerged as promising bioresorbable metals for orthopedic implants because of their favorable combination of moderate degradation rates, good mechanical properties, and biocompatibility. In addition, the performance of bone implants relies heavily on their osteointegration ability, which is closely related to the immune responses triggered after implantation. In this study, two Zn-based alloys, Zn–2Cu and Zn–2Cu–0.8Li were developed, to improve the comprehensive properties of Zn implants. The introduction of copper (Cu) and lithium (Li) via alloying improved the hardness and localized corrosion resistance of Zn-based specimens. Both the Zn alloys exhibited enhanced adhesion, proliferation, and osteogenic differentiation behaviors when tested with MC3T3-E1 cells. Importantly, the immune response of RAW264.7, mediated by the two Zn alloys, with pure Zn as a control was systematically investigated. The results demonstrated that the synergistic release of Cu2+ and Li+ played a pivotal role in promoting the anti-inflammatory and osteoimmunomodulatory properties of degradable Zn. By alloying with Cu and Li, we achieved sequential and sustained ion release, resulting in the synergistic enhancement of osteoimmunomodulation through the modulation of the JAK-STAT signaling pathway. Finally, the Zn-based specimens were evaluated in vivo using rat mandibular defect models. After 8 weeks, the Zn–2Cu–0.8Li group exhibited significantly higher bone regeneration than the Zn–2Cu and pure Zn groups. These findings highlight the beneficial immune response and potential of Zn–Cu–Li alloys as novel biodegradable materials for orthopedic implants.<h3 data-test=\"abstract-sub-heading\">Grapical abstract</h3>\u0000","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"1 1","pages":""},"PeriodicalIF":8.8,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209101","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

One-dimensional hollow porous Ru–CuO nanofibers covered with ZIF-71 for H2S gas sensing and its first-principle study 用于 H2S 气体传感的 ZIF-71 覆盖层一维中空多孔 Ru-CuO 纳米纤维及其第一原理研究

IF 8.8 1区材料科学

Rare Metals Pub Date : 2024-09-06 DOI: 10.1007/s12598-024-02977-2

Chang-Kun Qiu, Lin Wang, Fei An, Hao Zhang, Qing-Run Li, Hao-Zhi Wang, Ming-Jun Li, Jing-Yu Guo, Pei-Lin Jia, Zong-Wei Liu, Liang Zhu, Wei Xu, Dong-Zhi Zhang

{"title":"One-dimensional hollow porous Ru–CuO nanofibers covered with ZIF-71 for H2S gas sensing and its first-principle study","authors":"Chang-Kun Qiu, Lin Wang, Fei An, Hao Zhang, Qing-Run Li, Hao-Zhi Wang, Ming-Jun Li, Jing-Yu Guo, Pei-Lin Jia, Zong-Wei Liu, Liang Zhu, Wei Xu, Dong-Zhi Zhang","doi":"10.1007/s12598-024-02977-2","DOIUrl":"https://doi.org/10.1007/s12598-024-02977-2","url":null,"abstract":"Based on the unique catalytic properties of precious metals, the introduction of precious metals into metal oxide semiconductors will greatly improve the gas-sensitive properties of materials. As a new type of porous material, metal–organic frameworks (MOF) can be used for gas separation and adsorption due to their adjustable pore size and acceptable thermal stability. In this work, the ZIF-71 MOF was synthesized on CuO nanofibers doped with different concentrations of Ru to form a Ru–CuO@ZIF-71 nanocomposite sensor, which was then used for H2S detection. The sensor shows sensitivity to trace amounts of H2S gas (100 ppb), and the response is greatly enhanced at the optimal Ru doping ratio and operating temperature. The introduction of the ZIF-71 membrane can significantly increase the selectivity of the sensor while further improving the sensitivity. Finally, the possible sensing mechanism of the Ru–CuO@ZIF-71 sensor was explored. The enhancement of the H2S gas sensing properties may be attributed to the catalysis of Ru and the formation of the Schottky junction at the Ru–CuO interface. Besides, the calculation based on density functional theory reveals enhanced adsorption capacities of CuO for H2S after Ru doping. Therefore, the Ru–CuO@ZIF-71 sensor has strong application potential in exhaled gas detection and portable detection of H2S gas in industrial environments.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"270 1","pages":""},"PeriodicalIF":8.8,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209135","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

Tris-buffered efficacy: enhancing stability and reversibility of Zn anode by efficient modulation at Zn/electrolyte interface 三缓冲功效：通过在锌/电解质界面上进行有效调节，提高锌阳极的稳定性和可逆性

IF 8.8 1区材料科学

Rare Metals Pub Date : 2024-09-05 DOI: 10.1007/s12598-024-02990-5

Yong-Jian Wang, Su-Hong Li, Lin Li, Jian-Yong Ren, Ling-Di Shen, Chao Lai

{"title":"Tris-buffered efficacy: enhancing stability and reversibility of Zn anode by efficient modulation at Zn/electrolyte interface","authors":"Yong-Jian Wang, Su-Hong Li, Lin Li, Jian-Yong Ren, Ling-Di Shen, Chao Lai","doi":"10.1007/s12598-024-02990-5","DOIUrl":"https://doi.org/10.1007/s12598-024-02990-5","url":null,"abstract":"Aqueous zinc-ion batteries (AZIBs) have developed rapidly in recent years but still face several challenges, including zinc dendrites growth, hydrogen evolution reaction, passivation and corrosion. The pH of the electrolyte plays a crucial role in these processes, significantly impacting the stability and reversibility of Zn2+ deposition. Therefore, pH-buffer tris (hydroxymethyl) amino methane (tris) is chosen as a versatile electrolyte additive to address these issues. Tris can buffer electrolyte pH at Zn/electrolyte interface by protonated/deprotonated nature of amino group, optimize the coordination environment of zinc solvate ions by its strong interaction with zinc ions, and simultaneously create an in-situ stable solid electrolyte interface membrane on the zinc anode surface. These synergistic effects effectively restrain dendrite formation and side reactions, resulting in a highly stable and reversible Zn anode, thereby enhancing the electrochemical performance of AZIBs. The Zn||Zn battery with 0.15 wt% tris additives maintains stable cycling for 1500 h at 4 mA·cm−2 and 1120 h at 10 mA·cm−2. Furthermore, the Coulombic efficiency reaches ~ 99.2% at 4 mA·cm−2@1 mAh·cm−2. The Zn||NVO full batteries also demonstrated a stable specific capacity and exceptional capacity retention.<h3 data-test=\"abstract-sub-heading\">Graphical abstract</h3>\u0000","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"10 1","pages":""},"PeriodicalIF":8.8,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209136","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

Enhanced strength of a high-conductivity Cu-Cr alloy by Sc addition 通过添加 Sc 增强高导电率铜-铬合金的强度

IF 9.6 1区材料科学

Rare Metals Pub Date : 2024-09-04 DOI: 10.1007/s12598-024-02947-8

Tao Huang, Chao-Min Zhang, Ying-Xuan Ma, Shu-Guo Jia, Ke-Xing Song, Yan-Jun Zhou, Xiu-Hua Guo, Zhen-Peng Xiao, Hui-Wen Guo

{"title":"Enhanced strength of a high-conductivity Cu-Cr alloy by Sc addition","authors":"Tao Huang, Chao-Min Zhang, Ying-Xuan Ma, Shu-Guo Jia, Ke-Xing Song, Yan-Jun Zhou, Xiu-Hua Guo, Zhen-Peng Xiao, Hui-Wen Guo","doi":"10.1007/s12598-024-02947-8","DOIUrl":"10.1007/s12598-024-02947-8","url":null,"abstract":"<div>A new Cu-Cr-Sc alloy was designed, prepared and subjected to deformation heat treatment. Transmission electron microscopy (TEM), electron backscatter diffraction (EBSD) and X-ray diffraction (XRD) were employed to investigate the effects of Sc on the microstructural changes in the Cu-Cr alloy in different states, examine the changes in the precipitates during aging, reveal the intrinsic correlation between the structure and property in the peak aging state, and evaluate the Sc distribution in the Cu-Cr alloy. The addition of Sc significantly increased the yield strength of the Cu-Cr alloy by ~ 24.6% after aging at 480 °C for 1 h, while it had a high electrical conductivity of 81.5% international annealed copper standard (IACS). This enhancement was attributed to the effective inhibition of Cr phase coarsening and recrystallization through the addition of Sc, which strengthened the alloy. Furthermore, in the Cu-Cr-Sc alloy, most of the Sc atoms precipitated as the Cu4Sc phase, with a small amount of Sc segregating at the grain boundaries to pin them. This grain boundary pinning helped to inhibit grain growth and further improve the strength. The main strengthening mechanisms identified in Cu-Cr-Sc alloys were dislocation strengthening and precipitation strengthening.<h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"43 11","pages":"6054 - 6067"},"PeriodicalIF":9.6,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209138","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