Transactions of Nonferrous Metals Society of China最新文献_第8页

Synergistic effect of orientation and temperature on slip behavior and precipitation behavior of Al-Cu-Li single crystals

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-11-01 DOI: 10.1016/S1003-6326(24)66625-2

Zhen JIANG , Chen-qi LEI , Jia-jun DING , Chun-nan ZHU , Dong-feng SHI , Jin ZHANG , Guo-qing WANG

{"title":"Synergistic effect of orientation and temperature on slip behavior and precipitation behavior of Al-Cu-Li single crystals","authors":"Zhen JIANG , Chen-qi LEI , Jia-jun DING , Chun-nan ZHU , Dong-feng SHI , Jin ZHANG , Guo-qing WANG","doi":"10.1016/S1003-6326(24)66625-2","DOIUrl":"10.1016/S1003-6326(24)66625-2","url":null,"abstract":"<div><div>The slip behavior and precipitation behavior of four Al-Cu-Li single crystals with varying orientations at different temperatures were investigated using electron backscattering diffraction (EBSD) and transmission electron microscopy (TEM). The maximum differences in yield strength and ductility of the single crystals at room temperature are 41.6% and 14.7%, respectively. This indicates that the mechanical properties are strongly influenced by the crystal orientation. Moreover, grains with varying orientations exhibit distinct slip characteristics, including slip homogenization, slip localization, and multiple slip. In single crystal SC1, slip localization primarily contributes to its inferior ductility compared to other grains. Nevertheless, during deformation at 250 °C, the distinct morphology and distribution of precipitates in the crystals are also correlated with orientation, which causes the increase in the maximum elongation difference to 20.8% in all selected single crystals. Notably, SC1, with a precipitate volume fraction of 2.65%, exhibits more severe slip localization compared to room temperature conditions, while SC2, with a precipitate volume fraction of 4.79%, demonstrates cross-slip characteristics, significantly enhancing the plastic deformation capacity of the Al-Cu-Li alloy.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"34 11","pages":"Pages 3554-3568"},"PeriodicalIF":4.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143174903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Effects of Ti- and Mg-bearing minerals on hydrothermal formation of hydroandradite

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-11-01 DOI: 10.1016/S1003-6326(24)66639-2

Hong-fei WU , Xiao-lin PAN , Ying-jie HE , Hai-yan YU

{"title":"Effects of Ti- and Mg-bearing minerals on hydrothermal formation of hydroandradite","authors":"Hong-fei WU , Xiao-lin PAN , Ying-jie HE , Hai-yan YU","doi":"10.1016/S1003-6326(24)66639-2","DOIUrl":"10.1016/S1003-6326(24)66639-2","url":null,"abstract":"<div><div>The effects of Ti- and Mg-bearing minerals on the crystal structure, morphology, particle size distribution, and formation mechanism of efficient desilication product of hydroandradite (HA) during hydrothermal conversion in a synthetic sodium aluminate solution were investigated via X-ray diffractometer, scanning electron microscope and particle size analyzer. During HA formation, anatase, rutile, and periclase dissolved in sodium aluminate solution engage in ion substitution reactions between Ti4+ and Si4+, and between Mg2+ and Ca2+, respectively. However, dissolved hydromagnesite cannot enter into the HA. The content of HA after the hydrothermal reactions changes slightly with the increase of anatase and periclase contents, but it notably decreases with increased quantities of rutile and hydromagnesite. Ti-bearing minerals reduce the particle size and enhance the specific surface area of HA, whereas Mg-bearing minerals exert the opposite effect. The morphology of HA with Ti- and Mg-bearing minerals changes from spherical particles to flocculent structure and hexagonal plate-like particles.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"34 11","pages":"Pages 3762-3776"},"PeriodicalIF":4.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143174914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Effects of anode slime removing by Fe2+ dissolution method on electrochemical properties of Pb-0.6%Ag anode and zinc electrowinning

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-11-01 DOI: 10.1016/S1003-6326(24)66640-9

Wen-jun WANG , Lan-bo LI , Xu LIU , Tie-chui YUAN , He-xin GAO

引用次数: 0

Effects of 〈c+a〉 slip mode on microstructure evolution and compressive flow behavior of extruded dilute Mg-0.5Bi-0.5Sn-0.5Mn alloy

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-11-01 DOI: 10.1016/S1003-6326(24)66628-8

Zhi-yong YOU , Wei-li CHENG , Guo-lei LIU , Jian LI , Li-fei WANG , Hui YU , Hong-xia WANG , Ze-qin CUI , Jin-hui WANG

{"title":"Effects of 〈c+a〉 slip mode on microstructure evolution and compressive flow behavior of extruded dilute Mg-0.5Bi-0.5Sn-0.5Mn alloy","authors":"Zhi-yong YOU , Wei-li CHENG , Guo-lei LIU , Jian LI , Li-fei WANG , Hui YU , Hong-xia WANG , Ze-qin CUI , Jin-hui WANG","doi":"10.1016/S1003-6326(24)66628-8","DOIUrl":"10.1016/S1003-6326(24)66628-8","url":null,"abstract":"<div><div>The influence of the slip mode on the microstructure evolution and compressive flow behavior at different strains in an extruded dilute Mg-0.5Bi-0.5Sn-0.5Mn alloy was analyzed through electron backscatter diffraction, X-ray diffraction, transmission electron microscopy, and hot compression tests. The results showed that at a low strain of 0.05, the basal 〈a〉, pyramidal 〈a〉 and 〈c+a〉 slip modes were simultaneously activated. Nevertheless, at the middle stage of deformation (strain of 0.1, 0.2 and 0.5), the 〈a〉 slip mode was difficult to be activated and 〈c+a〉 slip mode became dominant. The deformation process between strains of 0.2 and 0.5 was primarily characterized by the softening effect resulting from the simultaneous occurrence of continuous dynamic recrystallization and discontinuous dynamic recrystallization. Ultimately, at strain of 0.8, a dynamic equilibrium was established, with the flow stress remaining constant due to the interplay between the dynamic softening brought about by discontinuous dynamic recrystallization and the work-hardening effect induced by the activation of the basal 〈a〉 slip mode.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"34 11","pages":"Pages 3599-3614"},"PeriodicalIF":4.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143174901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Synergistic extraction and separation of valuable elements from high-alumina fly ash with carbochlorination method

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-11-01 DOI: 10.1016/S1003-6326(24)66637-9

Long WANG , Xin-xin ZHAO , Zi-mu ZHANG , Ting-an ZHANG , Guo-zhi LÜ , Zhi-he DOU , Ai-chun ZHAO , Xi-yu ZHANG

{"title":"Synergistic extraction and separation of valuable elements from high-alumina fly ash with carbochlorination method","authors":"Long WANG , Xin-xin ZHAO , Zi-mu ZHANG , Ting-an ZHANG , Guo-zhi LÜ , Zhi-he DOU , Ai-chun ZHAO , Xi-yu ZHANG","doi":"10.1016/S1003-6326(24)66637-9","DOIUrl":"10.1016/S1003-6326(24)66637-9","url":null,"abstract":"<div><div>A novel process was proposed for synergistic extraction and separation of valuable elements from high-alumina fly ash. A thermodynamic analysis revealed that to achieve effective carbochlorination, it is crucial to conduct carbochlorination of the fly ash within the temperature range from 700 to 1000 °C. The experimental results demonstrated that under the optimal conditions, the carbochlorination efficiency for Al, Si, Ca, Ti, and Mg exceeded 81.18%, 67.62%, 58.87%, 82.15%, and 59.53%, respectively. The XRD patterns indicated that Al and Si in the mullite phase (Al6Si2O13) were chlorinated during the carbochlorination process, resulting in the formation of mullite mesophases (Al4.75Si1.25O9.63 and Al1.83Si1.08O4.85). After the carbochlorination process, Al was accumulated as AlCl3 in the condenser, while SiCl4 and TiCl4 were enriched in the exhaust gas, and CaCl2, MgCl2, and unreacted oxides remained in the residue for further recycling.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"34 11","pages":"Pages 3737-3748"},"PeriodicalIF":4.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143174917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Mechanism of lime decomposing Al2O3-containing fayalite melt

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-11-01 DOI: 10.1016/S1003-6326(24)66635-5

Hui-chuan REN , Xiao-bo MIN , Yong KE , Long-gong XIA , Yun-yan WANG , Cong PENG , Yun LI , Rong-he TAN , Chuan-fu ZHANG

{"title":"Mechanism of lime decomposing Al2O3-containing fayalite melt","authors":"Hui-chuan REN , Xiao-bo MIN , Yong KE , Long-gong XIA , Yun-yan WANG , Cong PENG , Yun LI , Rong-he TAN , Chuan-fu ZHANG","doi":"10.1016/S1003-6326(24)66635-5","DOIUrl":"10.1016/S1003-6326(24)66635-5","url":null,"abstract":"<div><div>A method to upgrade the iron grade in copper slag was proposed using lime to decompose Al2O3-containing fayalite melt (AFMT). Thermodynamic calculations indicated that adjusting the CaO/AFMT ratio can yield a residual melt with a FeO concentration of 75-88 wt.% and produce Ca2SiO4. In-situ observations suggested that the reaction was impeded in some way. Quenching experiments revealed that the initial reaction products consisted of calcium ferrite compounds and FeO-CaO melt. At the FeO-CaO melt/AFMT interface, Ca2SiO4 particles precipitated, forming a dense Ca2SiO4 film that significantly impeded mass transfer. Although trace amounts of Al2O3 in AFMT temporarily enhanced mass transfer, they were insufficient to overcome this retardation effect. The decomposition reaction was far from achieving equilibrium, demonstrating a self-retardation effect. Measures must be implemented to eliminate this self-retardation effect and enhance the efficiency of reaction kinetics.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"34 11","pages":"Pages 3707-3720"},"PeriodicalIF":4.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143174918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Fabrication of lightweight 3D interpenetrated NiTi@Mg composite with superior bending properties

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-11-01 DOI: 10.1016/S1003-6326(24)66626-4

Yu-jing LIU , Xiao-chun LIU , Kun-mao LI , Xiang WU , Sheng-feng ZHOU , Wei LI , Wen-cai ZHANG

引用次数: 0

Recent progress in ether-based electrolytes for high-voltage lithium metal batteries

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-11-01 DOI: 10.1016/S1003-6326(24)66619-7

Hai-peng ZHU, Qiang-feng ZHANG, Zhao CHEN, Zi-yu PENG, Lin MEI, Chun-xiao ZHANG, Wei-feng WEI

引用次数: 0

Microstructure evolution and tensile behavior of balanced Al-Mg-Si alloy with various homogenization parameters

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-11-01 DOI: 10.1016/S1003-6326(24)66624-0

Dong JIN , Hong-ying LI , Zhi-xiang ZHU , Chang-long YANG , Yao-jun MIAO , Chao XU , Bao-an CHEN , Zhen LIU

{"title":"Microstructure evolution and tensile behavior of balanced Al-Mg-Si alloy with various homogenization parameters","authors":"Dong JIN , Hong-ying LI , Zhi-xiang ZHU , Chang-long YANG , Yao-jun MIAO , Chao XU , Bao-an CHEN , Zhen LIU","doi":"10.1016/S1003-6326(24)66624-0","DOIUrl":"10.1016/S1003-6326(24)66624-0","url":null,"abstract":"<div><div>The effects of homogenization parameters on the microstructure evolution and tensile behavior of a balanced Al-Mg-Si alloy were investigated using the optical microscope, scanning electron microscope, X-ray diffraction, electron probe microanalyzer, differential scanning calorimetry, electrical conductivity test, and tensile test. The results show that Mg2Si and β-AlFeSi are the main intermetallic compounds in the as-cast structure, and Mg solute microsegregation is predominant inside the dendrite cell. The prediction of the full dissolution time of Mg2Si by a kinetic model is consistent with the experiment. The β-AlFeSi in the alloy exhibits high thermal stability and mainly undergoes dissolution and coarsening during homogenization at 560 °C, and only a small portion is converted to α-AlFeSi. The optimal homogenization parameters are determined as 560 °C and 360 min, when considering the evolution of microstructure and resource savings. Both the strength and ductility of the alloy increased after homogenization.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"34 11","pages":"Pages 3536-3553"},"PeriodicalIF":4.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143174902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Hybrid machine learning and microstructure-based approach for modeling relationship between microstructure and hardness of AA2099 Al-Li alloy

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-11-01 DOI: 10.1016/S1003-6326(24)66622-7

Xiang-hui ZHU , Xu-sheng YANG , Wei-jiu HUANG , Miao GONG , Xin WANG , Meng-di LI

{"title":"Hybrid machine learning and microstructure-based approach for modeling relationship between microstructure and hardness of AA2099 Al-Li alloy","authors":"Xiang-hui ZHU , Xu-sheng YANG , Wei-jiu HUANG , Miao GONG , Xin WANG , Meng-di LI","doi":"10.1016/S1003-6326(24)66622-7","DOIUrl":"10.1016/S1003-6326(24)66622-7","url":null,"abstract":"<div><div>A hybrid approach combining machine learning and microstructure analysis was proposed to investigate the relationship between microstructure and hardness of AA2099 Al-Li alloy through nano-indentation, X-ray diffraction (XRD) and electron backscatter diffraction (EBSD) technologies. Random forest regression (RFR) model was employed to predict hardness based on microstructural features and uncover influential factors and their rankings. The results show that the increased hardness correlates with a smaller distance from indentation to grain boundary (Ddis) or a shorter minimum grain axis (Dmin), a lower Schmidt factor in friction stir weld direction (SFFD), and higher sine values of the angle between {111} slip plane and surface (sin θmin). Ddis and Dmin emerge as pivotal determinants in hardness prediction. High-angle grain boundaries imped dislocation slip, thereby increasing hardness. Crystallographic orientation also significantly influences hardness, especially in the presence of T1 phases along {111}Al habit planes. This effect is attributable to the variation in encountered T1 variants during indenter loading. Consequently, the importance ranking of microstructural features shifts depending on T1 phase abundance: in samples with limited T1 phases, Ddis or Dmin > SFFD > sin θmin, while in samples with abundant T1 phases, Ddis or Dmin > sin θmin > SFFD.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"34 11","pages":"Pages 3504-3520"},"PeriodicalIF":4.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143174906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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