International Journal of Minerals, Metallurgy, and Materials最新文献_第9页

Waste heat recovery from hot steel slag on the production line: Numerical simulation, validation and industrial test 生产线钢渣热余热回收:数值模拟、验证及工业试验

IF 2.232 2区材料科学

International Journal of Minerals, Metallurgy, and Materials Pub Date : 2023-11-15 DOI: 10.1007/s12613-023-2660-3

Tianhua Zhang, Longheng Xiao, Guibo Qiu, Huigang Wang, Min Guo, Xiangtao Huo, Mei Zhang

{"title":"Waste heat recovery from hot steel slag on the production line: Numerical simulation, validation and industrial test","authors":"Tianhua Zhang, Longheng Xiao, Guibo Qiu, Huigang Wang, Min Guo, Xiangtao Huo, Mei Zhang","doi":"10.1007/s12613-023-2660-3","DOIUrl":"10.1007/s12613-023-2660-3","url":null,"abstract":"<div>Waste heat recovery from hot steel slag was determined in a granular bed through the combination of numerical simulation and an industrial test method. First, the effective thermal conductivity of the granular bed was calculated. Then, the unsteady-state model was used to simulate the heat recovery under three different flow fields (O-type, S-type, and nonshielding type (Nontype)). Second, the simulation results were validated by in-situ industrial experiments. The two methods confirmed that the heat recovery efficiencies of the flow fields from high to low followed the order of Nontype, S-type, and O-type. Finally, heat recovery was carried out under the Nontype flow field in an industrial test. The heat recovery efficiency increased from ∼76% and ∼78% to ∼81% when the steel slag thickness decreased from 400 and 300 to 200 mm, corresponding to reductions in the steel slag mass from 3.96 and 2.97 to 1.98 t with a blower air volume of 14687 m3/h. Therefore, the research results showed that numerical simulation can not only guide experiments on waste heat recovery but also optimize the flow field. Most importantly, the method proposed in this paper has achieved higher waste heat recovery from hot steel slag in industrial scale.</div>","PeriodicalId":14030,"journal":{"name":"International Journal of Minerals, Metallurgy, and Materials","volume":"30 11","pages":"2191 - 2199"},"PeriodicalIF":2.232,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134796395","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

Intelligent method to experimentally identify the fracture mechanism of red sandstone 红砂岩断裂机理实验识别的智能方法

IF 2.232 2区材料科学

International Journal of Minerals, Metallurgy, and Materials Pub Date : 2023-11-15 DOI: 10.1007/s12613-023-2668-8

Zida Liu, Diyuan Li, Quanqi Zhu, Chenxi Zhang, Jinyin Ma, Junjie Zhao

{"title":"Intelligent method to experimentally identify the fracture mechanism of red sandstone","authors":"Zida Liu, Diyuan Li, Quanqi Zhu, Chenxi Zhang, Jinyin Ma, Junjie Zhao","doi":"10.1007/s12613-023-2668-8","DOIUrl":"10.1007/s12613-023-2668-8","url":null,"abstract":"<div>Tensile and shear fractures are significant mechanisms for rock failure. Understanding the fractures that occur in rock can reveal rock failure mechanisms. Scanning electron microscopy (SEM) has been widely used to analyze tensile and shear fractures of rock on a mesoscopic scale. To quantify tensile and shear fractures, this study proposed an innovative method composed of SEM images and deep learning techniques to identify tensile and shear fractures in red sandstone. First, direct tensile and preset angle shear tests were performed for red sandstone to produce representative tensile and shear fracture surfaces, which were then observed by SEM. Second, these obtained SEM images were applied to develop deep learning models (AlexNet, VGG13, and SqueezeNet). Model evaluation showed that VGG13 was the best model, with a testing accuracy of 0.985. Third, the features of tensile and shear fractures of red sandstone learned by VGG13 were analyzed by the integrated gradient algorithm. VGG13 was then implemented to identify the distribution and proportion of tensile and shear fractures on the failure surfaces of rock fragments caused by uniaxial compression and Brazilian splitting tests. Results demonstrated the model feasibility and suggested that the proposed method can reveal rock failure mechanisms.</div>","PeriodicalId":14030,"journal":{"name":"International Journal of Minerals, Metallurgy, and Materials","volume":"30 11","pages":"2134 - 2146"},"PeriodicalIF":2.232,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134796350","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

Technical factors affecting the performance of anion exchange membrane water electrolyzer 影响阴离子交换膜水电解槽性能的技术因素

IF 2.232 2区材料科学

International Journal of Minerals, Metallurgy, and Materials Pub Date : 2023-11-15 DOI: 10.1007/s12613-023-2648-z

Xun Zhang, Yakang Li, Wei Zhao, Jiaxin Guo, Pengfei Yin, Tao Ling

{"title":"Technical factors affecting the performance of anion exchange membrane water electrolyzer","authors":"Xun Zhang, Yakang Li, Wei Zhao, Jiaxin Guo, Pengfei Yin, Tao Ling","doi":"10.1007/s12613-023-2648-z","DOIUrl":"10.1007/s12613-023-2648-z","url":null,"abstract":"<div>Anion exchange membrane (AEM) electrolysis is a promising membrane-based green hydrogen production technology. However, AEM electrolysis still remains in its infancy, and the performance of AEM electrolyzers is far behind that of well-developed alkaline and proton exchange membrane electrolyzers. Therefore, breaking through the technical barriers of AEM electrolyzers is critical. On the basis of the analysis of the electrochemical performance tested in a single cell, electrochemical impedance spectroscopy, and the number of active sites, we evaluated the main technical factors that affect AEM electrolyzers. These factors included catalyst layer manufacturing (e.g., catalyst, carbon black, and anionic ionomer) loadings, membrane electrode assembly, and testing conditions (e.g., the KOH concentration in the electrolyte, electrolyte feeding mode, and operating temperature). The underlying mechanisms of the effects of these factors on AEM electrolyzer performance were also revealed. The irreversible voltage loss in the AEM electrolyzer was concluded to be mainly associated with the kinetics of the electrode reaction and the transport of electrons, ions, and gas-phase products involved in electrolysis. Based on the study results, the performance and stability of AEM electrolyzers were significantly improved.</div>","PeriodicalId":14030,"journal":{"name":"International Journal of Minerals, Metallurgy, and Materials","volume":"30 11","pages":"2259 - 2269"},"PeriodicalIF":2.232,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134796517","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

Residual stress with asymmetric spray quenching for thick aluminum alloy plates 厚铝合金板的非对称喷射淬火残余应力

IF 2.232 2区材料科学

International Journal of Minerals, Metallurgy, and Materials Pub Date : 2023-11-15 DOI: 10.1007/s12613-023-2645-2

Ning Fan, Zhihui Li, Yanan Li, Xiwu Li, Yongan Zhang, Baiqing Xiong

{"title":"Residual stress with asymmetric spray quenching for thick aluminum alloy plates","authors":"Ning Fan, Zhihui Li, Yanan Li, Xiwu Li, Yongan Zhang, Baiqing Xiong","doi":"10.1007/s12613-023-2645-2","DOIUrl":"10.1007/s12613-023-2645-2","url":null,"abstract":"<div>Solution and quenching heat treatments are generally carried out in a roller hearth furnace for large-scale thick aluminum alloy plates. However, the asymmetric or uneven spray water flow rate is inevitable under industrial production conditions, which leads to an asymmetric residual stress distribution. The spray quenching treatment was conducted on self-designed spray equipment, and the residual stress along the thickness direction was measured by a layer removal method based on deflections. Under the asymmetric spray quenching condition, the subsurface stress of the high-flow rate surface was lower than that of the low-flow rate surface, and the difference between the two subsurface stresses increased with the increase in the difference in water flow rates. The subsurface stress underneath the surface with a water flow rate of 0.60 m3/h was 15.38 MPa less than that of 0.15 m3/h. The simulated residual stress by finite element (FE) method of the high heat transfer coefficient (HTC) surface was less than that of the low HTC surface, which is consistent with the experimental results. The FE model can be used to analyze the strain and stress evolution and predict the quenched stress magnitude and distribution.</div>","PeriodicalId":14030,"journal":{"name":"International Journal of Minerals, Metallurgy, and Materials","volume":"30 11","pages":"2200 - 2211"},"PeriodicalIF":2.232,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134796396","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

An integrated and efficient process for borax preparation and magnetite recovery from soda-ash roasted ludwigite ore under CO–CO2–N2 atmosphere CO-CO2-N2气氛下碱灰焙烧矿硼砂及磁铁矿综合高效回收工艺研究

IF 2.232 2区材料科学

International Journal of Minerals, Metallurgy, and Materials Pub Date : 2023-11-15 DOI: 10.1007/s12613-023-2643-4

Jinxiang You, Jing Wang, Mingjun Rao, Xin Zhang, Jun Luo, Zhiwei Peng, Guanghui Li

{"title":"An integrated and efficient process for borax preparation and magnetite recovery from soda-ash roasted ludwigite ore under CO–CO2–N2 atmosphere","authors":"Jinxiang You, Jing Wang, Mingjun Rao, Xin Zhang, Jun Luo, Zhiwei Peng, Guanghui Li","doi":"10.1007/s12613-023-2643-4","DOIUrl":"10.1007/s12613-023-2643-4","url":null,"abstract":"<div>To realize the comprehensive utilization of ludwigite ore, an integrated and efficient route for the boron and iron separation was proposed in this work, which via soda-ash roasting under CO–CO2–N2 atmosphere followed by grind-leaching, magnetic separation, and CO2 carbonation. The effects of roasting temperature, roasting time, CO/(CO+CO2) composition, and Na2CO3 dosage on the boron and iron separation indices were primarily investigated. Under the optimized conditions of the roasting temperature of 850°C, roasting time of 60 min, soda ash dosage of 20wt%, and CO/(CO+CO2) of 10vol%, 92% of boron was leached during wet grinding, and 88.6% of iron was recovered during the magnetic separation and magnetic concentrate with a total iron content of 61.51wt%. Raman spectra and 11B NMR results indicated that boron exists as B(OH)\u0000 −4\u0000 \u0000 in the leachate, from which high-purity borax pentahydrate could be prepared by CO2 carbonation.</div>","PeriodicalId":14030,"journal":{"name":"International Journal of Minerals, Metallurgy, and Materials","volume":"30 11","pages":"2169 - 2181"},"PeriodicalIF":2.232,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12613-023-2643-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134796513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Ca/Mg molar ratio on the calcium-based sorbents Ca/Mg摩尔比对钙基吸附剂性能的影响

IF 2.232 2区材料科学

International Journal of Minerals, Metallurgy, and Materials Pub Date : 2023-11-15 DOI: 10.1007/s12613-023-2657-y

Yumeng Li, Qing Zhao, Xiaohui Mei, Chengjun Liu, Henrik Saxén, Ron Zevenhoven

{"title":"Effect of Ca/Mg molar ratio on the calcium-based sorbents","authors":"Yumeng Li, Qing Zhao, Xiaohui Mei, Chengjun Liu, Henrik Saxén, Ron Zevenhoven","doi":"10.1007/s12613-023-2657-y","DOIUrl":"10.1007/s12613-023-2657-y","url":null,"abstract":"<div>Steelmaking industry faces urgent demands for both steel slag utilization and CO2 abatement. Ca and Mg of steel slag can be extracted by acid solution and used to prepare sorbents for CO2 capture. In this work, the calcium-based sorbents were prepared from stainless steel slag leachate by co-precipitation, and the initial CO2 chemisorption capacity of the calcium-based sorbent prepared from steel slag with the Ca and Mg molar ratio of 3.64:1 was 0.40 g/g. Moreover, the effect of Ca/Mg molar ratio on the morphology, structure, and CO2 chemisorption capacity of the calcium-based sorbents were investigated. The results show that the optimal Ca/Mg molar ratio of sorbent for CO2 capture was 4.2:1, and the skeleton support effect of MgO in calcium-based sorbents was determined. Meanwhile, the chemisorption kinetics of the sorbents was studied using the Avrami-Erofeev model. There were two processes of CO2 chemisorption, and the activation energy of the first stage (reaction control) was found to be lower than that of the second stage (diffusion control).</div>","PeriodicalId":14030,"journal":{"name":"International Journal of Minerals, Metallurgy, and Materials","volume":"30 11","pages":"2182 - 2190"},"PeriodicalIF":2.232,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134796514","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 Sr2+ on 3D gel-printed Sr3−xMgx(PO4)2 composite scaffolds for bone tissue engineering Sr2+对3D凝胶打印Sr3−xMgx(PO4)2复合材料骨组织工程支架的影响

IF 2.232 2区材料科学

International Journal of Minerals, Metallurgy, and Materials Pub Date : 2023-11-15 DOI: 10.1007/s12613-023-2638-1

Hongyuan Liu, Jialei Wu, Siqi Wang, Jing Duan, Huiping Shao

{"title":"Effect of Sr2+ on 3D gel-printed Sr3−xMgx(PO4)2 composite scaffolds for bone tissue engineering","authors":"Hongyuan Liu, Jialei Wu, Siqi Wang, Jing Duan, Huiping Shao","doi":"10.1007/s12613-023-2638-1","DOIUrl":"10.1007/s12613-023-2638-1","url":null,"abstract":"<div>Porous magnesium strontium phosphate (Sr3−xMgx(PO4)2) (x = 2, 2.5, 3) composite scaffolds were successfully prepared by three dimension gel-printing (3DGP) method in this study. The results show that Sr0.5Mg2.5(PO4)2 scaffolds had good compressive strength, and Sr1.0Mg2.0(PO4)2 scaffolds had good degradation rate in vitro. The weight loss rate of Sr1.0Mg2.0(PO4)2 scaffolds soaked in simulated body fluid (SBF) or 6 weeks was 6.96%, and pH value varied between 7.50 and 8.61, which was within the acceptable range of human body. Preliminary biological experiment shows that MC3T3-E1 cells had good adhesion and proliferation on the surface of Sr3−xMgx(PO4)2 scaffolds. Compared with pure Mg3(PO4)2 scaffolds, strontium doped scaffolds had excellent comprehensive properties, which explain that Sr3−xMgx(PO4)2 composite scaffolds can be used for bone tissue engineering.</div>","PeriodicalId":14030,"journal":{"name":"International Journal of Minerals, Metallurgy, and Materials","volume":"30 11","pages":"2236 - 2244"},"PeriodicalIF":2.232,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12613-023-2638-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134796515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Erratum to: Phase-field simulation of lack-of-fusion defect and grain growth during laser powder bed fusion of Inconel 718 Inconel 718激光粉末床熔合过程中缺乏熔合缺陷和晶粒生长的相场模拟

IF 2.232 2区材料科学

International Journal of Minerals, Metallurgy, and Materials Pub Date : 2023-11-15 DOI: 10.1007/s12613-023-2769-4

Miaomiao Chen, Renhai Shi, Zhuangzhuang Liu, Yinghui Li, Qiang Du, Yuhong Zhao, Jianxin Xie

引用次数: 0

Mechanically mixing copper and silver into self-supporting electrocatalyst for hydrogen evolution 将铜和银机械混合到用于析氢的自支撑电催化剂中

IF 2.232 2区材料科学

International Journal of Minerals, Metallurgy, and Materials Pub Date : 2023-10-11 DOI: 10.1007/s12613-023-2695-5

Xinzhuo Hu, Zhe Liu, Yi Feng, Yongfeng Zhang, Zhe Li, Zhennan Chen, Jing Mao, Jing Yang, Hui Liu, Pengfei Yin, Lei Cui, Xiwen Du

{"title":"Mechanically mixing copper and silver into self-supporting electrocatalyst for hydrogen evolution","authors":"Xinzhuo Hu, Zhe Liu, Yi Feng, Yongfeng Zhang, Zhe Li, Zhennan Chen, Jing Mao, Jing Yang, Hui Liu, Pengfei Yin, Lei Cui, Xiwen Du","doi":"10.1007/s12613-023-2695-5","DOIUrl":"10.1007/s12613-023-2695-5","url":null,"abstract":"<div>Commercial hydrogen production involves the development of efficient hydrogen evolution reaction catalysts. Herein, we adopted a friction stir processing (FSP) technique to mix immiscible metals homogenously and obtain a self-supporting copper–silver (CuAg) catalyst. The gust of Ag atoms with larger atomic sizes caused a tensile strain in the Cu matrix. Meanwhile, the chemical-potential difference induced electron transfer from Cu to Ag, and the two factors jointly led to the upshift of Cu d-band and improved the catalytic activity. Consequently, the CuAg electrode exhibited a high turnover frequency (12 times that of pure Cu), a low overpotential at high current density (superior to platinum foil), and high durability (1.57% decay over 180 h). Our work demonstrates that FSP is a powerful method for preparing self-supporting catalysts of immiscible alloys with high catalytic performance.</div>","PeriodicalId":14030,"journal":{"name":"International Journal of Minerals, Metallurgy, and Materials","volume":"30 10","pages":"1906 - 1913"},"PeriodicalIF":2.232,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12613-023-2695-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41229139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Uniform nanoplating of metallic magnesium film on titanium dioxide nanotubes as a skeleton for reversible Na metal anode 在二氧化钛纳米管上均匀纳米镀金属镁膜作为可逆Na金属阳极骨架

IF 2.232 2区材料科学

International Journal of Minerals, Metallurgy, and Materials Pub Date : 2023-10-11 DOI: 10.1007/s12613-023-2685-7

Jinshan Wang, Feng Li, Si Zhao, Lituo Zheng, Yiyin Huang, Zhensheng Hong

{"title":"Uniform nanoplating of metallic magnesium film on titanium dioxide nanotubes as a skeleton for reversible Na metal anode","authors":"Jinshan Wang, Feng Li, Si Zhao, Lituo Zheng, Yiyin Huang, Zhensheng Hong","doi":"10.1007/s12613-023-2685-7","DOIUrl":"10.1007/s12613-023-2685-7","url":null,"abstract":"<div>To meet the low-cost concept advocated by the sodium metal anode, this paper reports the use of a pulsed electrodeposition technology with ionic liquids as electrolytes to achieve uniform nanoplating of metallic magnesium films at around 20 nm on spaced titanium dioxide (TiO2) nanotubes (STNA-Mg). First, the sodiophilic magnesium metal coating can effectively reduce the nucleation overpotential of sodium metal. Moreover, three-dimensional STNA can limit the volume expansion during sodium metal plating and stripping to achieve the ultrastable deposition and stripping of sodium metals with a high Coulombic efficiency of up to 99.5% and a small voltage polarization of 5 mV in symmetric Na∥Na batteries. In addition, the comparative study of sodium metal deposition behavior of STNA-Mg and STNA-Cu prepared by the same route further confirmed the advantage of magnesium metal to guide sodium metal growth. Finally, the prepared STNA-Mg–Na metal anode and commercial sodium vanadium phosphate cathode were assembled into a full cell, delivering a discharge capacity of 110.2 mAh·g−1 with a retention rate of 95.6% after 110 cycles at 1C rate.</div>","PeriodicalId":14030,"journal":{"name":"International Journal of Minerals, Metallurgy, and Materials","volume":"30 10","pages":"1868 - 1877"},"PeriodicalIF":2.232,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12613-023-2685-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41229280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1