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学者姓名：聂祚仁
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摘要 ：
Aging behavior and phase transformation of Al-5Zn-1Mg-1Cu(-Si) alloys under different isothermal temperatures were investigated using transmission electron microscope (TEM) and mechanical tests. The aging temperature and Si addition significantly influenced to the types of precipitated phases and mechanical properties of the Al-Zn-Mg-Cu alloys. Adding Si in this alloy changed the precipitated phases from T ' and eta ' phases to the dual-sized eta and GPB-II phases. With increasing isothermal aging temperature, more GPB-II phases formed in alloys with the same composition, effectively improving the microhardness and mechanical properties. When aging at 150 degrees C, 0.5 wt%Si-containing alloy reached the highest peak hardness of about 150HV and maintained stable hardness, while an alloy without Si only reached 120HV and later declined by 15HV. The tensile strength and yield strength of the 0.5 wt%Si-containing alloy were higher than those of non-Si alloy by 132 MPa and 165 MPa, increasing 51% and 90%, respectively. This result was due to the presence of fine and dispersed 4-8 nm GPB-II phases in 0.5 wt%Si-containing alloy. The GPB-II phase had a core-shell structure, with the core region mainly enriched in Mg and Si, and the shell region mainly enriched in Cu and Zn. Compared with the stability of T ' and eta ' phases, this core-shell structure of GPB-II effectively inhibited its growth and beneficially maintained a smaller-sized GPB-II phase. The strengthening effect of GPB-II phase was better than that of eta or T phases when aging at 150 degrees C or 200 degrees C. The mechanical properties of high Zn/Mg ratios Al-Zn-Mg-Cu alloys can enhanced by adding Si.
关键词 ：
Phase transformation Phase transformation Al-Zn-Mg-Cu-(Si) alloy Al-Zn-Mg-Cu-(Si) alloy GPB-II phase GPB-II phase Phase competition Phase competition Core-shell structure Core-shell structure High Zn/Mg ratio High Zn/Mg ratio
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| GB/T 7714 | Lu, Yi , Wen, Shengping , Gao, Kunyuan et al. The phase transformation and enhancing mechanical properties in high Zn/ Mg ratio Al-Zn-Mg-Cu(-Si) alloys [J]. | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T , 2024 , 31 : 1693-1702 . |
| MLA | Lu, Yi et al. "The phase transformation and enhancing mechanical properties in high Zn/ Mg ratio Al-Zn-Mg-Cu(-Si) alloys" . | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 31 (2024) : 1693-1702 . |
| APA | Lu, Yi , Wen, Shengping , Gao, Kunyuan , Xiong, Xiangyuan , Wei, Wu , Wu, Xiaolan et al. The phase transformation and enhancing mechanical properties in high Zn/ Mg ratio Al-Zn-Mg-Cu(-Si) alloys . | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T , 2024 , 31 , 1693-1702 . |
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摘要 ：
As a challenge to avoid the strength-ductility trade-off for Ti alloys, strength and ductility are contradictory, especially at a high content of primary alpha phase. This study proposed a new strategy to evade this trade-off dilemma by designing an 81% primary alpha phase/ultrafine-grained (UFG) secondary alpha phase lamellar heterogeneous structure(LPSlow-HS) in near-alpha Ti alloys. Compared to the bimodal structure, the LPSlow-HS offers a remarkable increase in the ultimate tensile strength(1119 MPa) and yield strength(1069 MPa), respectively, while the elongation (15%) is not sacrificed. Owing to the strong heterogeneous deformation-induced(HDI) strengthening, more number of delamination of interfaces, UFG microstructures and strong strain hardening render the Ti alloys high strength. This strategy may provide a new approach for achieving higher HDI strengthening effects in heterogeneous structures (HS) under high soft phases, and offer a feasible method for producing high strength-ductility Ti alloys under high primary alpha phase.
关键词 ：
Heterogeneous structure Heterogeneous structure Specific yield strength and ductility Specific yield strength and ductility Heterogeneous deformation -induced Heterogeneous deformation -induced strengthening strengthening Ti alloys Ti alloys
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| GB/T 7714 | Hu, Jifei , Qi, Peng , Wei, Wu et al. Making high primary α phase content titanium alloy exceptional strength and ductility by designing the heterogeneous structure [J]. | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T , 2024 , 29 : 4173-4180 . |
| MLA | Hu, Jifei et al. "Making high primary α phase content titanium alloy exceptional strength and ductility by designing the heterogeneous structure" . | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 29 (2024) : 4173-4180 . |
| APA | Hu, Jifei , Qi, Peng , Wei, Wu , Li, Bolong , Wang, Tongbo , Yin, Jiaming et al. Making high primary α phase content titanium alloy exceptional strength and ductility by designing the heterogeneous structure . | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T , 2024 , 29 , 4173-4180 . |
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摘要 ：
The precipitate evolution and microstructure stability of AlCuMgSiSc alloys with Er additions were intentionally investigated. It reveals that the Cu-containing metastable precipitates (rod-liked Q ' and lath-liked L precipitates) are promoted and achieved highest tensile strength of similar to 441.3 MPa through precipitation strengthening after aging at 12 h in AlCuMgSiErSc alloy. Meanwhile, the AlCuMgSiErSc alloy shows approximately similar to 6.9 % and similar to 10.8 % higher UTS (27.7 MPa) and YS (34.1 MPa) than AlCuMgSiSc alloy after severe over aging for 150 h, respectively. Surprisingly, the sigma-Al5Cu6Mg2 precipitates are rarely observed in AlCuMgSiErSc alloy indicating that the formation of sigma-Al5Cu6Mg2 is inhibited. The excellent thermal stability can be explained by the high density of Q ' precipitates with hybrid structures and L precipitates. Moreover, Er solute atoms preferentially segregate at the interface of the Q ' precipitates and enrich the 0' precipitate, which inhibits the diffusion of solute atoms and stabilizes the coarsening of precipitates. This work may provide a strategy for designing Al-Cu series alloys with thermally stable microstructures.
关键词 ：
Precipitates evolution Precipitates evolution Microstructures stability Microstructures stability Solute segregation Solute segregation Er additions Er additions AlCuMgSi(Sc) alloy AlCuMgSi(Sc) alloy
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| GB/T 7714 | Hou, Xingkai , Wen, Shengping , Liang, Shangshang et al. Enhanced multiple precipitation and long-term stability in AlCuMgSi(Sc) alloys with Er additions [J]. | MATERIALS CHARACTERIZATION , 2024 , 218 . |
| MLA | Hou, Xingkai et al. "Enhanced multiple precipitation and long-term stability in AlCuMgSi(Sc) alloys with Er additions" . | MATERIALS CHARACTERIZATION 218 (2024) . |
| APA | Hou, Xingkai , Wen, Shengping , Liang, Shangshang , Qi, Peng , Wei, Wu , Wu, Xiaolan et al. Enhanced multiple precipitation and long-term stability in AlCuMgSi(Sc) alloys with Er additions . | MATERIALS CHARACTERIZATION , 2024 , 218 . |
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摘要 ：
Microalloying has been an important method in aluminum alloy development for decades. Large number of papers have shown that the addition of trace element Erbium (Er) can effectively improve the comprehensive properties of aluminum alloys. Similar with the trace element Scandium (Sc), addition of trace element Er in aluminum alloys could form nano-sized L12-ordered Al3Er precipitates, which was coherent with the Al matrix. However, the dispersion precipitation strengthening effect of Al3Er was more significant than that of Al3Sc, at the same atomic content. In the case of the addition of both Er and Zr, core-shell-structured Al3(Er, Zr) precipitates formed instead of Al3Er precipitates. Those thermally-stable nanosized precipitates could significantly refine the grain size, retard the recrystallization, improve the mechanical properties and corrosion resistance. This paper reviewed several typical Er-containing microalloyed commercial aluminum alloys, like 2xxx (Al-Cu) alloys, 4xxx (Al-Si) alloys, 5xxx (Al-Mg) alloys, 7xxx (Al-Zn-Mg-Cu) alloys, as well as selective laser melting aluminum alloys.
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| GB/T 7714 | Wu, Xiaolan , Sun, Meng , Hong, Liang et al. Er-containing microalloyed aluminum alloys: a review [J]. | JOURNAL OF MATERIALS SCIENCE , 2024 , 59 (22) : 9685-9696 . |
| MLA | Wu, Xiaolan et al. "Er-containing microalloyed aluminum alloys: a review" . | JOURNAL OF MATERIALS SCIENCE 59 . 22 (2024) : 9685-9696 . |
| APA | Wu, Xiaolan , Sun, Meng , Hong, Liang , Wen, Shengping , Wei, Wu , Gao, Kunyuan et al. Er-containing microalloyed aluminum alloys: a review . | JOURNAL OF MATERIALS SCIENCE , 2024 , 59 (22) , 9685-9696 . |
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摘要 ：
The industrial sector is the primary source of carbon emissions in China. In pursuit of meeting its carbon reduction targets, China aims to promote resource consumption sustainability, reduce energy consumption, and achieve carbon neutrality within its processing industries. An effective strategy to promote energy savings and carbon reduction throughout the life cycle of materials is by applying life cycle engineering technology. This strategy aims to attain an optimal solution for material performance, resource consumption, and environmental impact. In this study, five types of technologies were considered: raw material replacement, process reengineering, fuel replacement, energy recycling and reutilization, and material recycling and reutilization. The meaning, methodology, and development status of life cycle engineering technology abroad and domestically are discussed in detail. A multidimensional analysis of ecological design was conducted from the perspectives of resource and energy consumption, carbon emissions, product performance, and recycling of secondary resources in a manufacturing process. This coupled with an integrated method to analyze carbon emissions in the entire life cycle of a material process industry was applied to the nonferrous industry, as an example. The results provide effective ideas and solutions for achieving low or zero carbon emission production in the Chinese industry as recycled aluminum and primary aluminum based on advanced technologies had reduced resource consumption and emissions as compared to primary aluminum production. (c) 2024 THE AUTHORS. Published by Elsevier LTD on behalf of Chinese Academy of Engineering andHigher Education Press Limited Company. This is an open access article under the CC BY-NC-ND license(http://creativecommons.org/licenses/by-nc-nd/4.0/).1. Introduction
关键词 ：
Carbon neutrality Carbon neutrality Life cycle engineering Life cycle engineering Process Industry Process Industry Eco-design Eco-design Carbon reduction technology Carbon reduction technology
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| GB/T 7714 | Li, Mingyang , Gao, Feng , Nie, Zuoren et al. Investigation into the Methodology and Implementation of Life Cycle Engineering under China's Carbon Reduction Target in the Process Industry [J]. | ENGINEERING , 2024 , 40 : 87-99 . |
| MLA | Li, Mingyang et al. "Investigation into the Methodology and Implementation of Life Cycle Engineering under China's Carbon Reduction Target in the Process Industry" . | ENGINEERING 40 (2024) : 87-99 . |
| APA | Li, Mingyang , Gao, Feng , Nie, Zuoren , Sun, Boxue , Liu, Yu , Gong, Xianzheng . Investigation into the Methodology and Implementation of Life Cycle Engineering under China's Carbon Reduction Target in the Process Industry . | ENGINEERING , 2024 , 40 , 87-99 . |
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摘要 ：
本发明提供了一种三元动力电池回收碳减排效益分配方法及装置，在电池回收企业构建物料投入产出与碳排放测算系统，记录废电池来料，能源和其他原辅料的投入数据以及多种产品产出数据；通过识别废电池碳标签及检索碳排放数据库，依次测算废料原生碳排放、回收过程碳排放与产出产品碳减排量；基于在线动态市场价格监测模块输出的确定批次废电池来料同级崭新品和报废品平均价格，计算并分配回收过程碳减排效益，将碳减排效益分别划归于电池回收和原生生产主体并实施反馈。该方法解决了三元动力电池回收环境效益分配不清的问题，为电池回收过程的碳减排效益确权提供了有效的解决方案。
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| GB/T 7714 | 高峰 , 杜世伟 , 孙博学 et al. 一种三元动力电池回收碳减排效益分配方法及装置 : CN202310732639.8[P]. | 2023-06-20 . |
| MLA | 高峰 et al. "一种三元动力电池回收碳减排效益分配方法及装置" : CN202310732639.8. | 2023-06-20 . |
| APA | 高峰 , 杜世伟 , 孙博学 , 刘宇 , 龚先政 , 李小青 et al. 一种三元动力电池回收碳减排效益分配方法及装置 : CN202310732639.8. | 2023-06-20 . |
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摘要 ：
一种激光粉末床熔合技术制备高强度Al‑Si‑Mg合金的方法，属于增材制造材料领域。包含S1：Al‑Si‑Mg合金粉末成分设计；S2：筛分Al‑Si‑Mg合金粉末；S3：Al‑Si‑Mg合金粉末干燥处理；S4 : 成型参数设计；本发明通过Er、Zr微合金化并且调控Si、Mg含量，优化LPBF成型参数，细化胞晶尺寸。提高了LPBF制备Al‑Si‑Mg合金的应变硬化能力，屈服强度可以达到370MPa以上。
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| GB/T 7714 | 魏午 , 毕舰镭 , 黄晖 et al. 一种激光粉末床熔合技术制备高强度Al-Si-Mg合金的方法 : CN202310409560.1[P]. | 2023-04-17 . |
| MLA | 魏午 et al. "一种激光粉末床熔合技术制备高强度Al-Si-Mg合金的方法" : CN202310409560.1. | 2023-04-17 . |
| APA | 魏午 , 毕舰镭 , 黄晖 , 亓鹏 , 荣莉 , 吴晓蓝 et al. 一种激光粉末床熔合技术制备高强度Al-Si-Mg合金的方法 : CN202310409560.1. | 2023-04-17 . |
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摘要 ：
本发明涉及电池回收领域，尤其涉及一种废旧石墨层结构的再生修复方法。该方法包括将酸洗除杂后的石墨废料、锰盐和/或镍盐、硼酸和醇类试剂混合后干燥，然后进行高温加热和除杂。本发明提供的方法能够高效回收废旧锂离子电池中的电极石墨粉，所回收石墨具有优异的层结构，有效提升再生石墨的电化学性能。
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| GB/T 7714 | 马立文 , 刘广运 , 席晓丽 et al. 一种废旧石墨层结构的再生修复方法 : CN202310434459.1[P]. | 2023-04-21 . |
| MLA | 马立文 et al. "一种废旧石墨层结构的再生修复方法" : CN202310434459.1. | 2023-04-21 . |
| APA | 马立文 , 刘广运 , 席晓丽 , 聂祚仁 . 一种废旧石墨层结构的再生修复方法 : CN202310434459.1. | 2023-04-21 . |
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摘要 ：
一种提高铝合金叠层复合板抗冲击性能的时效工艺，属于有色金属技术领域，对两种Zn、Mg含量差别较大的叠层复合板轧制，得到叠层复合板的总厚度为5.0mm, 其中Al‑7.0Zn‑3.0Mg合金的厚度为4.07mm，Al‑4.4Zn‑2.3Mg合金厚度为0.93mm，然后对复合板进行470℃/1h的统一固溶处理，进一步进行统一时效处理，时效工艺为105～110℃保温36～60h，本发明所得叠层复合板具有高的抗冲击强度和良好的冲击韧性。
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| GB/T 7714 | 高坤元 , 窦义武 , 闵范磊 et al. 一种提高铝合金叠层复合板抗冲击性能的时效工艺 : CN202310272434.6[P]. | 2023-03-17 . |
| MLA | 高坤元 et al. "一种提高铝合金叠层复合板抗冲击性能的时效工艺" : CN202310272434.6. | 2023-03-17 . |
| APA | 高坤元 , 窦义武 , 闵范磊 , 聂祚仁 , 黄晖 , 文胜平 et al. 一种提高铝合金叠层复合板抗冲击性能的时效工艺 : CN202310272434.6. | 2023-03-17 . |
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摘要 ：
本发明提供了一种将环境因素纳入铝合金材料设计的实现方法及装置，涉及生态环境材料设计及生产领域。在策划及方案制定阶段，获得各方案生命周期参数并写入存储器。构建性能‑需求矩阵并写入存储器。调用存储器中的性能参数及性能需求矩阵确定的综合性能指标并记入存储器。调用存储器中生命周期参数，运用处理器及存储器计算得到资源强度值及碳排放值。利用处理器计算各方案生态设计结果并记入存储器。调用存储器中各方案结果并进行识别比对，未满足要求的方案需重新设计直至满足要求。该发明针对缺乏综合权衡材料性能、资源能源消耗及环境影响三者之间量化关系的方法及装置的问题，为铝合金材料生态设计提供了有效的解决方案。
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| GB/T 7714 | 高峰 , 李明阳 , 孙博学 et al. 一种将环境因素纳入铝合金材料设计的实现方法及装置 : CN202310731089.8[P]. | 2023-06-20 . |
| MLA | 高峰 et al. "一种将环境因素纳入铝合金材料设计的实现方法及装置" : CN202310731089.8. | 2023-06-20 . |
| APA | 高峰 , 李明阳 , 孙博学 , 刘宇 , 龚先政 , 李小青 et al. 一种将环境因素纳入铝合金材料设计的实现方法及装置 : CN202310731089.8. | 2023-06-20 . |
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