Transactions of Nonferrous Metals Society of China最新文献_第10页

Enhancing strength–ductility synergy of AlNp/Al composite by regulating heterostructure of matrix grain and particle distribution 通过调节基体晶粒和颗粒分布的异质结构提高 AlNp/Al 复合材料的强度-电导率协同效应

IF 4.5 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-04-01 DOI: 10.1016/S1003-6326(23)66453-2

Yu-yao CHEN , Jin-feng NIE , Yong FAN , Lei GU , Ke-wei XIE , Xiang-fa LIU , Yong-hao ZHAO

{"title":"Enhancing strength–ductility synergy of AlNp/Al composite by regulating heterostructure of matrix grain and particle distribution","authors":"Yu-yao CHEN , Jin-feng NIE , Yong FAN , Lei GU , Ke-wei XIE , Xiang-fa LIU , Yong-hao ZHAO","doi":"10.1016/S1003-6326(23)66453-2","DOIUrl":"https://doi.org/10.1016/S1003-6326(23)66453-2","url":null,"abstract":"<div><p>Three heterostructured AlN<sub>p</sub>/Al composites with different microstructure configurations were fabricated by liquid–solid reaction combined with subsequent thermal-mechanical treatment to obtain a superior strength and ductility combination. The effects of the microstructure configuration including the AlN particle distribution and matrix grain structure on the tensile strength and ductility were studied in detail. The results show that the simultaneous enhancement of tensile strength and ductility can be achieved. The Uniformed-AlN<sub>p</sub>/Al composite with relatively dispersed particles exhibits a superior ultimate tensile strength of ~387 MPa with an elongation to failure of ~9.1%. It shows an outstanding specific tensile strength and elongation combination compared with other reported particle reinforced aluminum matrix composites. Furthermore, the hetero-deformation induced (HDI) stress has been calculated and is shown to increase significantly in the Uniformed-AlN<sub>p</sub>/Al composite. It is revealed that the HDI stress plays a crucial role in the significant enhancement of strength and ductility for the AlN<sub>p</sub>/Al composite.</p></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1003632623664532/pdf?md5=ef824faadd3fd42be9275a0d3c580d2b&pid=1-s2.0-S1003632623664532-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140818753","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

Effect of inorganic anions on precipitation of desilication products based on low-temperature Bayer process 无机阴离子对基于低温拜耳工艺的脱盐产品沉淀的影响

IF 4.5 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-04-01 DOI: 10.1016/S1003-6326(24)66472-1

Ji-long LIU , Xiao-lin PAN , Hong-fei WU , Xian-lin HOU , Hai-yan YU

{"title":"Effect of inorganic anions on precipitation of desilication products based on low-temperature Bayer process","authors":"Ji-long LIU , Xiao-lin PAN , Hong-fei WU , Xian-lin HOU , Hai-yan YU","doi":"10.1016/S1003-6326(24)66472-1","DOIUrl":"https://doi.org/10.1016/S1003-6326(24)66472-1","url":null,"abstract":"<div><p>The effect of inorganic anion impurities in sodium aluminate solution on the composition, structure and micro-morphology of desilication products (DSPs) based on the low-temperature Bayer process was systematically investigated via XRD, FT-IR, SEM and PSD methods. The sodalites with chloride-type, carbonate-type and nosean-type precipitate in the presence of chloride, sulfate and carbonate in solution, and the aluminate ions in DSPs are partly replaced by the incorporation of anion impurities. The binding capability of sulfate to the DSPs cage is stronger than aluminate, chloride and carbonate. The particle size, agglomeration degree and thickness of the circular lamellar structure of DSPs are increased by rising the concentration of anion impurities. The anions enhance the dissolution of the zeolite framework and the formation of tetradentate rings in sodalite, which promotes the transformation of zeolite to sodalite.</p></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1003632624664721/pdf?md5=9ae46ae152df16ee1f62a9712df0eedd&pid=1-s2.0-S1003632624664721-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140818723","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 shell mold heating temperature on microstructures and freckle formation of single crystal superalloys 壳模加热温度对单晶超合金微观结构和雀斑形成的影响

IF 4.5 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-04-01 DOI: 10.1016/S1003-6326(24)66463-0

Zhi-cheng WANG, Jia-rong LI, Shi-zhong LIU, Wan-peng YANG, Xiao-guang WANG

{"title":"Effects of shell mold heating temperature on microstructures and freckle formation of single crystal superalloys","authors":"Zhi-cheng WANG, Jia-rong LI, Shi-zhong LIU, Wan-peng YANG, Xiao-guang WANG","doi":"10.1016/S1003-6326(24)66463-0","DOIUrl":"https://doi.org/10.1016/S1003-6326(24)66463-0","url":null,"abstract":"<div><p>To study the effects of shell mold heating temperature on the microstructure and freckle formation of single crystal superalloys, the directional solidification experiment and simulation were conducted with designed stepwise specimens. The temperature field and morphology of mushy zone were analyzed. The results show that the primary and secondary dendrite arm spacings both decrease with the rise of shell mold heating temperature. This reduces the permeability of the liquid in the mushy zone and the width of the thermal-solutal convection channel, which reduces the formation tendency of freckles, the width of freckles and the number of dendritic fragments in freckled areas. In addition, with the increase of shell mold heating temperature, the cooling rate of liquid in the mushy zone increases, which reduces the cooling time of the melt in the mushy zone, weakens the breaking capability of liquid flow to the dendrite, and further reduces the tendency of freckle formation in single crystal superalloy castings.</p></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1003632624664630/pdf?md5=e22aa5c8c1e84c4de594c12cc9852cc5&pid=1-s2.0-S1003632624664630-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140818694","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

Flash plasma electrolytic oxidation and electrochemical behaviour in physiological media of additive manufacturing Ti6Al4V alloy 增材制造 Ti6Al4V 合金在生理介质中的闪光等离子电解氧化和电化学行为

IF 4.5 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-04-01 DOI: 10.1016/S1003-6326(23)66460-X

H. MORA-SANCHEZ , C. RAMOS , M. MOHEDANO , B. TORRES , R. ARRABAL , E. MATYKINA

{"title":"Flash plasma electrolytic oxidation and electrochemical behaviour in physiological media of additive manufacturing Ti6Al4V alloy","authors":"H. MORA-SANCHEZ , C. RAMOS , M. MOHEDANO , B. TORRES , R. ARRABAL , E. MATYKINA","doi":"10.1016/S1003-6326(23)66460-X","DOIUrl":"https://doi.org/10.1016/S1003-6326(23)66460-X","url":null,"abstract":"<div><p>The objective of this work is to understand the plasma electrolytic oxidation (PEO) treatment and electrochemical behaviour of a Ti6Al4V alloy manufactured by a laser powder bed fusion additive manufacturing (AM) technique known as direct metal laser sintering (DMLS). Ca and P-containing coatings were produced with short time (<120 s) PEO treatments (also termed as Flash-PEO) obtaining 3–10 μm-thick coatings on both the AM alloy and a conventional counterpart. Subsequently, the electrochemical behaviour of the bare and treated alloys was assessed in a modified <em>α</em>-MEM solution via potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). The fine <em>α</em>-lamellar microstructure of the AM alloy with small <em>β</em>-phase particles at the interlamellar spaces was seen to advance the onset of sparking promoting faster growth of PEO coating in comparison to the conventional alloy. Flash-PEO coatings enhanced the corrosion protection of both conventional and AM alloys, the thinnest (<3 μm) coatings providing up to three times greater protection. AM Ti6Al4V was found to be susceptible to localized crevice corrosion which could be assigned to the high grain boundary density. Flash-PEO treatments, even as short as 35 s, were sufficient to successfully prevent it.</p></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S100363262366460X/pdf?md5=a5a1c675194024c9775f57fea3d75467&pid=1-s2.0-S100363262366460X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140818682","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

Selective extraction of nickel from acid leach solution of spent lithium-ion batteries using synergistic solvent extraction system consisting of TFCA-4PC 使用由 TFCA-4PC 组成的协同溶剂萃取系统从废锂离子电池酸浸出液中选择性提取镍

IF 4.5 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-04-01 DOI: 10.1016/S1003-6326(24)66473-3

Li-han ZHANG , Zuo-ying CAO , Gui-qing ZHANG , Qing-gang LI , Ming-yu WANG , Wen-juan GUAN , Sheng-xi WU , Qi DENG

{"title":"Selective extraction of nickel from acid leach solution of spent lithium-ion batteries using synergistic solvent extraction system consisting of TFCA-4PC","authors":"Li-han ZHANG , Zuo-ying CAO , Gui-qing ZHANG , Qing-gang LI , Ming-yu WANG , Wen-juan GUAN , Sheng-xi WU , Qi DENG","doi":"10.1016/S1003-6326(24)66473-3","DOIUrl":"https://doi.org/10.1016/S1003-6326(24)66473-3","url":null,"abstract":"<div><p>A synergistic solvent extraction (SSX) system consisting of tung oil-based carboxylic acid (TFCA) and isonicotinic acid ester (4PC) was proposed to selectively extract Ni over Li and Mg from acid leach solutions of spent lithium-ion batteries (LIBs). The SSX system indicates a synergistic effect of Ni which can be mainly attributed to the multiple chelate ring structure formed between TFCA and Ni, therefore resulting in strong selectivity of Ni. With optimal conditions, the extraction of Ni reaches 97.3% in a single stage, while the extractions of Mg and Li are nil and 2.29%, respectively. Further, after scrubbing with 300 mg/L NiSO<sub>4</sub>, the loaded organic solution is stripped using 0.2 mol/L H<sub>2</sub>SO<sub>4</sub>. The strip liquor containing 11.52 g/L Ni and only less than 6 mg/L Li is obtained.</p></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1003632624664733/pdf?md5=ad4fba8729adfe2947fc77cd6d0f5019&pid=1-s2.0-S1003632624664733-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140818724","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

Factors affecting reduction efficiency in industrial retorts for Mg production by aluminothermic process 影响铝热法生产镁的工业甑还原效率的因素

IF 4.5 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-04-01 DOI: 10.1016/S1003-6326(24)66471-X

Da-xue FU , Yao-wu WANG , Yue-zhong DI , Jian-ping PENG , Nai-xiang FENG

{"title":"Factors affecting reduction efficiency in industrial retorts for Mg production by aluminothermic process","authors":"Da-xue FU , Yao-wu WANG , Yue-zhong DI , Jian-ping PENG , Nai-xiang FENG","doi":"10.1016/S1003-6326(24)66471-X","DOIUrl":"https://doi.org/10.1016/S1003-6326(24)66471-X","url":null,"abstract":"<div><p>Industrial experiments were carried out for Mg production by aluminothermic process in industrial retorts and the factors affecting the reduction efficiency were analyzed. The results show that the main factors reducing the reduction ratio are oxidation and combustion of crystallized magnesium and uneven mixing of raw materials. The latter could result in raw material regions with low Al concentration and MgO redundance, which can promote the formation of 12CaO·7Al<sub>2</sub>O<sub>3</sub> and CaO·Al<sub>2</sub>O<sub>3</sub>. For raw material regions with higher Al concentration, both MgO and CaO can be reduced to form the Mg<sub>2</sub>Ca phase. Radiation and chemical reaction heat are the key factors affecting the reaction rate. Increasing the heating temperature can rapidly increase the bed temperature and obtain sufficient reaction ratio. The higher the magnesium content in the pellets is, the longer the reduction time is required.</p></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S100363262466471X/pdf?md5=ccc8a4d94d0b659c7c839ce7a7be4226&pid=1-s2.0-S100363262466471X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140818754","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

Accelerated design of Al−Zn−Mg−Cu alloys via machine learning 通过机器学习加速铝锌镁铜合金的设计

IF 4.5 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-03-01 DOI: 10.1016/S1003-6326(23)66429-5

Yong-fei JUAN , Guo-shuai NIU , Yang YANG , Zi-han XU , Jian YANG , Wen-qi TANG , Hai-tao JIANG , Yan-feng HAN , Yong-bing DAI , Jiao ZHANG , Bao-de SUN

{"title":"Accelerated design of Al−Zn−Mg−Cu alloys via machine learning","authors":"Yong-fei JUAN , Guo-shuai NIU , Yang YANG , Zi-han XU , Jian YANG , Wen-qi TANG , Hai-tao JIANG , Yan-feng HAN , Yong-bing DAI , Jiao ZHANG , Bao-de SUN","doi":"10.1016/S1003-6326(23)66429-5","DOIUrl":"https://doi.org/10.1016/S1003-6326(23)66429-5","url":null,"abstract":"<div><p>A machine learning-based alloy rapid design system (ARDS) was proposed to customize the preparation strategies for the desired properties or predict the alloy properties following the preparation strategies. For achieving this, three regression algorithms: linear regression (LR), support vector regression (SVR), and back propagation neural network (BPNN), were employed separately to train the multi-property prediction model, in which the machine learning (ML) model built using SVR was proved to be the best. Then, inspired by the generative adversarial network (GAN) algorithm, the ARDS was constructed. The predictive reliability of ARDS was examined, and for the accurate prediction of the preparation strategies, the upper limits of ultimate tensile strength (UTS), yield strength (YS), and elongation (EL) are about 790 MPa, 730 MPa, and 28%, respectively. Moreover, an ARDS-designed aluminum alloy with superior mechanical properties (764 MPa for UTS, 732 MPa for YS, and 10.1% for EL) was experimentally fabricated, further verifying the reliability of ARDS.</p></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1003632623664295/pdf?md5=9a6a58ab27c88c90757f91b6a0b66562&pid=1-s2.0-S1003632623664295-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140638545","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

Optimization of additive manufactured Ti-based pyramidal lattice structure applied to interface strengthening of Mg/Ti bimetal composites 应用于镁/钛双金属复合材料界面强化的添加剂制造钛基金字塔晶格结构的优化

IF 4.5 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-03-01 DOI: 10.1016/S1003-6326(23)66438-6

Yuan-bing WU , Jian-hua ZHAO , Wei-li PENG , Cheng GU , Jin CHENG , Ya-jun WANG

{"title":"Optimization of additive manufactured Ti-based pyramidal lattice structure applied to interface strengthening of Mg/Ti bimetal composites","authors":"Yuan-bing WU , Jian-hua ZHAO , Wei-li PENG , Cheng GU , Jin CHENG , Ya-jun WANG","doi":"10.1016/S1003-6326(23)66438-6","DOIUrl":"https://doi.org/10.1016/S1003-6326(23)66438-6","url":null,"abstract":"<div><p>Mg/Ti bimetal composites were fabricated by ultrasonic-assisted solid−liquid compound casting with an additively manufactured Ti-based pyramidal lattice structure at the interface. The Taguchi method was carried out to optimize the lattice parameters. The optimized geometric parameters include: the strut diameter (<em>d</em>) is 1 mm, the ratio of strut length to diameter (<em>l</em>/<em>d</em>) is 3, and the ratios of the upper and lower node to diameter (<em>d</em><sub>1</sub>/<em>d</em> and <em>d</em><sub>2</sub>/<em>d</em>) are 2.5 and 2.5, respectively. The ratio of strut length to diameter is the most significant factor affecting failure strength. The failure strength of the Mg/Ti bimetal joint with the optimized lattice structure is 77.3 MPa. Experimental and simulated results show that the failure strength increases first and then decreases with the increase of <em>l</em>/<em>d</em>, and it reaches the peak value when <em>l</em>/<em>d</em> is 3.</p></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1003632623664386/pdf?md5=3747f662d235d49c72038e4bc5c66724&pid=1-s2.0-S1003632623664386-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140638571","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

Dissolution behavior and improvement approach for gallium extraction from zinc refinery residues 从炼锌厂残渣中提取镓的溶解行为和改进方法

IF 4.5 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-03-01 DOI: 10.1016/S1003-6326(23)66450-7

Wei ZHANG , Shuai RAO , Li-qing LI , Xiao-dan GONG , Cai-gui WU , Dong-feng HU , Hong-yang CAO , Zhi-qiang LIU

{"title":"Dissolution behavior and improvement approach for gallium extraction from zinc refinery residues","authors":"Wei ZHANG , Shuai RAO , Li-qing LI , Xiao-dan GONG , Cai-gui WU , Dong-feng HU , Hong-yang CAO , Zhi-qiang LIU","doi":"10.1016/S1003-6326(23)66450-7","DOIUrl":"https://doi.org/10.1016/S1003-6326(23)66450-7","url":null,"abstract":"<div><p>Aiming at solving low Ga leaching efficiency during actual industrial production in Danxia Smelter, chemical composition, phases and morphologies of various zinc refinery residues were characterized using ICP−AES, XRD and SEM−EDS. Compared with the normal material, Ga was embedded in the jarosite phase from the special zinc refinery residue, causing difficulty in Ga leaching. During the oxidation pressure leaching, the dissolution behaviors of Ga, As and Fe presented similar variation tendency. Namely, a sufficient H<sub>2</sub>SO<sub>4</sub> concentration and liquid-to-solid ratio promoted the dissolution of Ga, Fe and As, whereas higher reaction temperature and oxygen partial pressure weakened the leaching. Based on the results, leaching parameters were optimized for enhancing Ga recovery. Through weakening the 1st oxidation pressure leaching (by decreasing reaction temperature and total pressure to 90 °C and 0.2 MPa, respectively) and strengthening the 3rd atmospheric leaching (by increasing H<sub>2</sub>SO<sub>4</sub> concentration and reaction temperature to 160 g/L and 85 °C, respectively), the leaching efficiency of Ga increased from 77.83% to 96.46%.</p></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1003632623664507/pdf?md5=b20bf5e537a5c279d14b5c5454bbd972&pid=1-s2.0-S1003632623664507-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140638692","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 Zn and Gd contents and their ratios on microstructure and mechanical properties of as-cast and as-extruded Mg−8Li alloys 锌和钆含量及其比例对铸造和挤压成型 Mg-8Li 合金微观结构和机械性能的影响

IF 4.5 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2024-03-01 DOI: 10.1016/S1003-6326(23)66435-0

Yu-chuan HUANG , Quan-da ZHANG , Si-jie OUYANG , Fu-zhen SUN , Jia-wei SUN , Hui-yu LI , Guo-hua WU , Pei-jun CHEN , Wen-cai LIU

{"title":"Effects of Zn and Gd contents and their ratios on microstructure and mechanical properties of as-cast and as-extruded Mg−8Li alloys","authors":"Yu-chuan HUANG , Quan-da ZHANG , Si-jie OUYANG , Fu-zhen SUN , Jia-wei SUN , Hui-yu LI , Guo-hua WU , Pei-jun CHEN , Wen-cai LIU","doi":"10.1016/S1003-6326(23)66435-0","DOIUrl":"https://doi.org/10.1016/S1003-6326(23)66435-0","url":null,"abstract":"<div><p>The effects of contents of Zn and Gd elements and their mass ratios on microstructure and mechanical properties of as-cast and as-extruded Mg−8Li alloys were investigated. After extrusion, the precipitates are broken, and fine spherical particles with size about 100 nm are found to disperse in the <em>β</em>-Li. The bi-modal structure consisting of long-strip-like coarse-grain <em>α</em>-Mg and recrystallized fine-grain <em>β</em>-Li is formed. The strength and plasticity of the alloys are greatly improved after extrusion, and the YS and UTS increase with the increase of Zn and Gd contents. The Mg−8Li−8Zn−2Gd alloy exhibits an optimum comprehensive performance with the YS of 274 MPa, UTS of 283 MPa, and EL of 39.9%. The bi-modal structure strengthening consisting of the fine crystal strengthening of <em>β</em>-Li and texture strengthening of <em>α</em>-Mg, and the dispersion strengthening of precipitations are the main strengthening mechanisms.</p></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":null,"pages":null},"PeriodicalIF":4.5,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1003632623664350/pdf?md5=48c56644140abe1000c0320ca7442d57&pid=1-s2.0-S1003632623664350-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140638568","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