Transactions of Nonferrous Metals Society of China最新文献_第3页

High-temperature fracture behavior of Ti−22Al−26Nb with different featured microstructures 不同特征组织Ti - 22Al - 26Nb的高温断裂行为

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2025-04-01 DOI: 10.1016/S1003-6326(24)66740-3

Yong-qiang ZHANG, Ke-min XUE, Miao MENG, Si-liang YAN, Ping LI

{"title":"High-temperature fracture behavior of Ti−22Al−26Nb with different featured microstructures","authors":"Yong-qiang ZHANG, Ke-min XUE, Miao MENG, Si-liang YAN, Ping LI","doi":"10.1016/S1003-6326(24)66740-3","DOIUrl":"10.1016/S1003-6326(24)66740-3","url":null,"abstract":"<div><div>The fracture behavior at high temperatures of the Ti−22Al−26Nb alloy, which features duplex lamellar, bimodal, and Widmanstätten structures, was studied. Samples of the alloy were prepared through compression deformation in the trans-phase region followed by subsequent heat treatment. The results indicate that at 650 °C, the fracture toughness of the Ti−22Al−26Nb alloy is increased by 41.7% compared to that with original microstructures. The content of the <em>B</em>2 phase significantly influences the inherent fracture toughness of the material, while the morphology and distribution of the precipitated phases primarily affect the tortuosity of the crack propagation path. Among the microstructural features, the morphology and geometric orientation of the lamellae most significantly impact the crack path; consequently, the Widmanstätten structure exhibits the most tortuous fracture path. Additionally, a predictive model for fracture toughness is developed, which effectively predicts the fracture toughness of Ti−22Al−26Nb alloys with various microstructures at 650 °C.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"35 4","pages":"Pages 1155-1167"},"PeriodicalIF":4.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143868219","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

Lithium material flow analysis in international trade: A life cycle perspective 国际贸易中的锂材料流分析：生命周期视角

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2025-04-01 DOI: 10.1016/S1003-6326(24)66754-3

Zi-tao ZHANG , Yun QIN , Xin SUN

引用次数: 0

Microstructure evolution and mechanical properties of Mg−Gd−Zn alloy with and without LPSO phase processed by multi-directional forging 多向锻造含与不含LPSO相Mg - Gd - Zn合金的组织演变及力学性能

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2025-04-01 DOI: 10.1016/S1003-6326(24)66735-X

Jing-yi HUANG , Yao-ling LIU , Yu-xiang HAN , Ying-chun WAN , Chu-ming LIU , Zhi-yong CHEN

{"title":"Microstructure evolution and mechanical properties of Mg−Gd−Zn alloy with and without LPSO phase processed by multi-directional forging","authors":"Jing-yi HUANG , Yao-ling LIU , Yu-xiang HAN , Ying-chun WAN , Chu-ming LIU , Zhi-yong CHEN","doi":"10.1016/S1003-6326(24)66735-X","DOIUrl":"10.1016/S1003-6326(24)66735-X","url":null,"abstract":"<div><div>The homogenized Mg−5.6Gd−0.8Zn (wt.%) alloys were treated with water cooling and furnace cooling to obtain specimens without and with the 14H long-period stacking ordered (LPSO) phase. Subsequently, multi-directional forging (MDF) experiments were carried out. The microstructure and mechanical properties of different regions (the center, middle and edge regions) in the MDFed alloys were systematically investigated, and the effect of LPSO phase on them was discussed. The results show that the alloys in different regions undergo significant grain refinement during the MDF process. Inhomogeneous microstructures with different degrees of dynamic recrystallization (DRX) are formed, resulting in microhardness heterogeneity. The alloy with the LPSO phase has higher microstructure homogeneity, a higher degree of recrystallization, and better comprehensive mechanical properties than the alloy without the LPSO phase. The furnace-cooled alloy after 18 passes of MDF has the best comprehensive mechanical properties, with an ultimate compressive strength of 488 MPa, yield strength of 258 MPa, and fracture strain of 21.2%. DRX behavior is closely related to the LPSO phase and deformation temperature. The kinked LPSO phase can act as a potential nucleation site for DRX grains, while the fragmented LPSO phase promotes DRX nucleation through the particle-stimulated nucleation mechanism.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"35 4","pages":"Pages 1075-1091"},"PeriodicalIF":4.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143868126","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

Selective flotation of ilmenite from titanaugite under weakly acidic pH conditions using 2-amino-1-propanol as novel depressant 以2-氨基-1-丙醇为新型抑制剂，在弱酸性条件下选择性浮选钛辉石中的钛铁矿

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2025-04-01 DOI: 10.1016/S1003-6326(24)66751-8

Chuan DAI , Pan CHEN , Yao-hui YANG , Wei SUN , Hong-bin WANG

{"title":"Selective flotation of ilmenite from titanaugite under weakly acidic pH conditions using 2-amino-1-propanol as novel depressant","authors":"Chuan DAI , Pan CHEN , Yao-hui YANG , Wei SUN , Hong-bin WANG","doi":"10.1016/S1003-6326(24)66751-8","DOIUrl":"10.1016/S1003-6326(24)66751-8","url":null,"abstract":"<div><div>The potential of 2-amino-1-propanol (AP) as a novel depressant in selectively floating ilmenite from titanaugite under weakly acidic conditions was investigated. Micro-flotation results show that AP significantly reduces the recovery of titanaugite while having no evident impact on ilmenite flotation. Subsequent bench-scale flotation tests further confirm a remarkable improvement in separation efficiency upon the introduction of AP. Contact angle and adsorption tests reveal a stronger affinity of AP towards the titanaugite surface in comparison to ilmenite. Zeta potential measurements and X-ray photoelectron spectroscopy (XPS) analyses exhibit favorable adsorption characteristics of AP on titanaugite, resulting from a synergy of electrostatic attraction and chemical interaction. In contrast, electrostatic repulsion hinders any significant interaction between AP and the ilmenite surface. These findings highlight the potential of AP as a highly efficient depressant for ilmenite flotation, paving the way for reduced reliance on sulfuric acid in the industry.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"35 4","pages":"Pages 1325-1337"},"PeriodicalIF":4.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143868117","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

Effect of trace cerium addition on hot deformation behavior of ultrahigh-purity copper containing sulfur 微量铈对含硫超高纯铜热变形行为的影响

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2025-03-01 DOI: 10.1016/S1003-6326(24)66721-X

Ke-xing SONG , Yun-xiao HUA , Hai-tao LIU , Yan-min ZHANG , Chao-min ZHANG , Yan-jun ZHOU , Tao HUANG

引用次数: 0

Effect of pouring and mold temperatures on fluidity and hot tearing behavior of cast Al−Li−Cu−Mg−Sc−Zr−Ti alloy 浇注温度和模具温度对铸态Al - Li - Cu - Mg - Sc - Zr - Ti合金流动性和热撕裂行为的影响

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2025-03-01 DOI: 10.1016/S1003-6326(24)66707-5

Yi-xiao WANG , Guo-hua WU , Liang ZHANG , You-jie GUO , Xin TONG , Liang-bin LI , Xun-man XIONG

{"title":"Effect of pouring and mold temperatures on fluidity and hot tearing behavior of cast Al−Li−Cu−Mg−Sc−Zr−Ti alloy","authors":"Yi-xiao WANG , Guo-hua WU , Liang ZHANG , You-jie GUO , Xin TONG , Liang-bin LI , Xun-man XIONG","doi":"10.1016/S1003-6326(24)66707-5","DOIUrl":"10.1016/S1003-6326(24)66707-5","url":null,"abstract":"<div><div>The influence of pouring temperature and mold temperature on the fluidity and hot tearing behavior of Al−2Li−2Cu−0.5Mg−0.15Sc−0.1Zr−0.1Ti alloys was investigated by experimental investigation and simulation assessment. The results showed that the length of the spiral fluidity sample increases from 302 to 756 mm as the pouring temperature increases from 680 to 740 °C, and from 293 to 736 mm as the mold temperature increases from 200 to 400 °C. The hot tearing susceptibility (HTS) firstly decreases and then increases with increasing pouring and mold temperatures, which is mainly caused by the oxide inclusion originating from the high activity of Li at excessive pouring temperature. Excessive pouring and mold temperatures easily produce oxide inclusions and holes, leading to a reduction in fluidity and an increase in HTS of the alloy. Combining the experimental and simulation results, the optimized pouring and mold temperatures are ~720 °C and ~300 °C for the cast Al−Li alloy, respectively.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"35 3","pages":"Pages 669-683"},"PeriodicalIF":4.7,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143842772","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

Recovery of polymetallic elements from cyanide tailings via reduction smelting 还原熔炼法回收氰化尾矿中的多金属元素

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2025-03-01 DOI: 10.1016/S1003-6326(24)66728-2

Gong-hao LI, Fen JIAO, Chen LI, Si-yu GU, Shi-yang LIU, Xin WEI

{"title":"Recovery of polymetallic elements from cyanide tailings via reduction smelting","authors":"Gong-hao LI, Fen JIAO, Chen LI, Si-yu GU, Shi-yang LIU, Xin WEI","doi":"10.1016/S1003-6326(24)66728-2","DOIUrl":"10.1016/S1003-6326(24)66728-2","url":null,"abstract":"<div><div>A process for treating cyanide tailings was proposed. The process essentially implicates reduction smelting which involves volatilizing silver, lead, and zinc in the cyanide tailings at high temperatures. Meanwhile, gold and copper combine with the reduced iron to form a metal phase, allowing for the simultaneous recovery of polymetallic elements. The experimental results indicate that the process works optimally with a coke powder of 7.5 wt.%, an alkalinity of 1.0, a melting temperature of 1450 °C, and a melting time of 60 min. Under these conditions, more than 99% of gold, 77% of copper and 94% of iron are incorporated into pig iron. In the meantime, the volatilization rate of silver exceeds 90%, while lead and zinc are essentially completely volatilized. The primary component of the by-product smelting slag is akermanite, which exhibits lower leaching toxicity than the national standard and belongs to general solid waste. Additionally, taking the trapping process of iron to copper as a case study, the mechanism of iron trapping is methodically examined and divided into three processes: smelting reduction, migration capture, and condensation deposition.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"35 3","pages":"Pages 975-989"},"PeriodicalIF":4.7,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143842872","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

Improving mechanical properties of extrusion additive manufacturing WC−9Co cemented carbide via green warm isostatic pressing 采用绿色温等静压技术提高WC−9Co硬质合金的力学性能

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2025-03-01 DOI: 10.1016/S1003-6326(24)66722-1

Cai CHEN , Run-xing ZHOU , Zu-ming LIU , Yong-xia LI , Dan ZOU , Yi-ming CHANG , Xu-lin CHENG

{"title":"Improving mechanical properties of extrusion additive manufacturing WC−9Co cemented carbide via green warm isostatic pressing","authors":"Cai CHEN , Run-xing ZHOU , Zu-ming LIU , Yong-xia LI , Dan ZOU , Yi-ming CHANG , Xu-lin CHENG","doi":"10.1016/S1003-6326(24)66722-1","DOIUrl":"10.1016/S1003-6326(24)66722-1","url":null,"abstract":"<div><div>To tackle the common issue of green defects in material extrusion (MEX) additive manufacturing (AM) cemented carbides, warm isostatic pressing (WIP) was introduced to eliminate defects of MEX WC−9Co cemented carbide greens, thereby improving both microstructure uniformity and mechanical properties of sintered bodies. The results indicate that WIP reduces defects in MEX greens, thus decreasing the dimensions and numbers of defects, modifying shapes of pores within sintered bodies, while preserving surface quality and shape characteristics. Compared with WC−9Co prepared via MEX followed by debinding and sintering (DS), the hardness of WC−9Co prepared using MEX−WIP−DS does not change significantly, ranging HV<sub>30</sub> 1494−1508, the transverse rupture strength increases by up to 49.3%, reaching 2998−3514 MPa, and the fracture toughness remains high, ranging 14.8−17.0 MPa·m<sup>1/2</sup>. The mechanical properties surpass comparable cemented carbides fabricated through other AM methods and are comparable to those produced by powder metallurgy. The integration of green WIP into MEX−DS broadens the MEX processing window, and improves the overall mechanical properties of MEX AM WC−Co cemented carbides.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"35 3","pages":"Pages 902-920"},"PeriodicalIF":4.7,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143842768","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

In-situ reduction mechanism of hematite by bastnaesite during suspension magnetization roasting 氟碳铈矿悬浮磁化焙烧过程中赤铁矿的原位还原机理

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2025-03-01 DOI: 10.1016/S1003-6326(24)66727-0

Wen-bo LI , Shao-kai CHENG , Rui QU , Ji-jia CHEN

{"title":"In-situ reduction mechanism of hematite by bastnaesite during suspension magnetization roasting","authors":"Wen-bo LI , Shao-kai CHENG , Rui QU , Ji-jia CHEN","doi":"10.1016/S1003-6326(24)66727-0","DOIUrl":"10.1016/S1003-6326(24)66727-0","url":null,"abstract":"<div><div>To explore the spontaneous magnetization of iron-bearing rare earth ores during suspension roasting, binary minerals containing hematite and bastnaesite were used to investigate the effects of the roasting temperature, roasting time, and bastnaesite-to-hematite mass ratio on in-situ reduction of hematite in a N<sub>2</sub> atmosphere. Relevant analytical tests were used to explore the mineral phase evolution during roasting, the magnetism and microstructure of the roasted products, the phase composition, and the surface element valence of concentrate. It was found that magnetic separation of the iron concentrate afforded an iron grade of 68.87% and a recovery of 93.18% under the optimum roasting conditions. During roasting, bastnaesite decomposed to generate CO<sub>2</sub> and CO, and the compact structure of hematite was gradually destroyed, resulting in microcracks. Subsequently, the CO entered the surface of the hematite through the microcracks and reacted to form a magnetite shell, and the magnetite-encapsulated hematite particles were recovered via low-intensity magnetic separation.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"35 3","pages":"Pages 965-974"},"PeriodicalIF":4.7,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143842774","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

Wire arc additive manufacturing of Al−Si−Mg aluminum alloy through wire−powder synchronous deposition 采用线粉同步沉积法制备Al - Si - Mg铝合金

IF 4.7 1区材料科学

Transactions of Nonferrous Metals Society of China Pub Date : 2025-03-01 DOI: 10.1016/S1003-6326(24)66709-9

Yun-fei MENG , Qian-xi YU , Xu WU , Ming GAO , Hui CHEN

{"title":"Wire arc additive manufacturing of Al−Si−Mg aluminum alloy through wire−powder synchronous deposition","authors":"Yun-fei MENG , Qian-xi YU , Xu WU , Ming GAO , Hui CHEN","doi":"10.1016/S1003-6326(24)66709-9","DOIUrl":"10.1016/S1003-6326(24)66709-9","url":null,"abstract":"<div><div>Owing to the lack of matching commercial welding wires, the development of wire arc additive manufacturing (WAAM) for most aluminum alloys is hindered. A wire−powder synchronous arc additive manufacturing (WPAAM) was proposed to prepare the target Al−Si−Mg aluminum alloy. Based on the synchronous deposition of AlSi<sub>12</sub> wire and pure Mg powder, the deposition width of the WPAAMed thin-wall was increased by 61% compared with that of WAAMed thin-wall using AlSi<sub>12</sub> wire, and the machining allowance was reduced by 81%. The added Mg powder benefited to form refined equiaxed grains, and reduced the average grain size of the WPAAMed thin-wall to 47.1 µm, showing a decrease of 23.8% relatively to that of the WAAMed thin-wall. Besides, Mg reacted with Si to form Mg<sub>2</sub>Si strengthening phases. The mechanical properties tests showed that the ultimate tensile strength and elongation of the WPAAMed thin-wall increased up to 174.5 MPa and 4.1%, reaching 92% and 60% those of the WAAMed thin-wall, respectively.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"35 3","pages":"Pages 701-714"},"PeriodicalIF":4.7,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143842876","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